Group of satellite like objects moving through the sky in a formation

We are searching data for your request:

Forums and discussions:
Manuals and reference books:
Data from registers:
Wait the end of the search in all databases.
Upon completion, a link will appear to access the found materials.

This evening while siting in the garden I saw an unusual group of light objects in the sky. On their own each of the 5 objects would look like a satellite and I would not give it a second thought.

The mentioned objects clearly moved in the same direction across the sky and with a speed and light pattern of a satellite. The other unusual thing was that the objects were rapidly changing formation moving away and towards one-another with no discernible pattern.

Also I would like to say as I Live in the London area I am quite accustomed to seeing planes in the night sky and do not think the object I saw was a plane or planes. The light emitted was white and constant and the formation of the objects was fairly scattered and changing very fast.

Can anyone please suggest what was it that I saw?

Definitely a UFO - Unidentified Flying Object, not necessarily aliens :-).

A few possibilities I can think of (would be nice to know how fast the objects were going, and whether or not they disappeared), arranged by most plausible to least plausible:

Birds If it was just after sunset, or just before sun rise, birds could have been flying up far above, where the sun was shining, though it was dark on the ground. This would be moving fairly slowly through the sky.

Shiny Balloon It could have been a shiny helium balloon drifting by with the lights of the city reflecting off it as it moved, causing the apparent motion. If this were the case, the "dots" should have stayed fairly close together, and it should have been fairly slow moving unless it was low and the wind was blowing fast. It would seem the pattern would be randomized, and not necessarily a "formation" though, unless formation just meant they were travelling together.

Meteor fragments It could have been fragments of a meteor that broke up, but they would likely be travelling straight, and not flying in any recognizable formation (but would be going nearly same direction, likely spreading out with time, and burning up / disappearing). This would have gone fairly fast through the sky and disappeared, or at least shrunk if they were large fragments.

Aliens At first, seemed the only plausible explanation, but there are others after thinking about it a bit.

Satellites would not change formation like that, but there is a possibility atmospheric distortions (like the "waves of heat" you can see coming off the road on a hot day) could have caused the effect with a single passing satellite. However, you probably would have noticed the stars doing the same thing if that were the case. I am also not aware of multiple satellites being grouped together like that, and they would not be able to change formation like that.

International Astronomical Center

Space debris continues to fall from the sky on a regular basis. Much of this goes unreported either because little attention is given to it by casual observers or reentries are seen from places where few people live or because eyewitnesses simply do not know what they are seeing. Meteors, which are natural debris, fall daily and are seen as fast moving streaks though some times as brilliant fireballs.

Artificial satellites are more rare but can appear as a single object that transforms into a procession of slow moving lights. We encourage all readers to provide an accurate report online as soon after seeing such an event using the form found below in this page.

Note that observations of UFOs or meteors are not being requested. A spacecraft reentry has a unique signature as described above and it will be quite obvious if you see such a group of objects traveling together in formation with some disappearing while others continue in parallel flight paths.

A UFO (unidentified flying object) can be interpreted in a number of ways. Stars, planets, the Moon and Sun are all essentially stationary objects. The only reason they seem to 'move', is that the Earth rotates slowly and collectively they change their position in the sky gradually throughout the night (or day). Flying objects may consist of individual birds or flocks of birds, bats, airplanes, military flares, possibly balloons, lanterns, even glowing insects like fireflies. Other moving objects are generally star-like and these are normally spacecraft and other satellites in Earth orbit. Airplanes flying from one place to another may appear star-like but are often accompanied by adjacent red or blue lights. Most untrained observers, news media, so-called 'official sources', law enforcement, military and government personnel are not able to tell what they are seeing. Thus, a UFO to one person may not be a UFO to another. Many reports of UFO's can be linked to streaks in the sky that are most often spotted after sunset or before sunrise. These are usually linked to rocket launches and can be spotted soon after launch or minutes or hours after a launch in relation to rocket stage separation. Still others might be classified as 'unexplained'. This site does not accept reports of this nature and the reader must think through carefully prior to submission.

Collection of evidence is crucial to any report. A video taken with a camera mounted on a stable tripod and clearly focused is a valuable tool to support any investigation along with accurate time and location details.

There are currently 362 Starlink satellites in orbit around Earth, with another 12,000 planned to be deployed in the next two years.

Eventually, Musk says there will be thousands of the mass-produced satellites orbiting Earth.

It means the sight of thousands of bright, moving lights will become common in the night skies over Britain.

It has even been suggested that the satellites might have been mistaken for a UFO sighting over Preston Prison in February.

And colonising space doesn't come cheap. Just ask Mr Musk.

The 48-year-old, who has a net worth of around $37 billion, said the total cost of his decade-long project has been estimated at an eye-watering$10 billion.

If you missed the spectacle last night, don't worry.

The satellites will be flying over the UK and visible from Lancashire until April 24.

So keep your eyes on the skies folks!

We'd love to see your pictures of the Starlink satellites over Lancashire. You can share them in the Facebook comments or send them to [email protected]

UFO in Japan Being ‘Followed Through Sky’ by Mysterious Orbs

• Recently, in Kagoshima City in Japan, ‘Chris M’ spotted a large bright UFO in the night sky above the urban area, with the silhouette of Sakurajima volcano behind. (see 2:20 minute video below) Some claim that they can see that the large UFO is being chased by smaller craft. As the shiny object zips from the right of the frame to the left, a group of smaller-looking lights that appear to be flying in a triangle formation appear and follow in its wake.

• Chris M sent his video to the YouTube channel ‘The Hidden Underbelly 2.0’. In the caption, Chris explains: “These objects were seen by the viewers of this live stream that is set up to monitor the Sakurajima volcano.” “That’s a fantastic capture, definitely one large one and then a smaller group following,” said one YouTube commenter.

• Another viewer commented: “Mother ship trying to fly away from her baby ships. In all seriousness though, it was very good footage”. “There’s always UFO activity near volcanos, like the one in Mexico,” wrote another fan.

Footage of an alleged “UFO” cruising through the skies near a volcano in Japan has sent conspiracy theorists wild, with some claiming it is being chased by smaller craft.

In the clip, recorded at Kagoshima City in Japan, a large bright object appears in the night sky above the urban area, with the silhouette of Sakurajima volcano behind.

As the shiny object zips from the right of the frame to the left, a group of smaller-looking lights that appear to be flying in a triangle formation appear and follow in its wake.

The footage was spotted by Chris M who sent it to the popular YouTube conspiracy theory channel The Hidden Underbelly 2.0 where it had since been viewed more than 1,000 times.

In the caption, he explained: “These objects were seen by the viewers of this live stream that is set up to monitor the Sakurajima volcano.”

Unsurprisingly, the clip drew an enthusiastic debate about whether the lights were UFOs or not.

“That’s a fantastic capture, definitely one large one and then a smaller group following,” commented one believer.

2:20 minute video of UFOs over Kagoshima City, Japan (‘The Hidden Underbelly 2.0’ YouTube)

Video Taken of a Line of “Fireball” Objects.

Description (Narration of Video): What is that? It looks like a bunch of fireballs, something in orbit. I wonder if that is a comet. It looks like embers strung through sky.They just died out. That is the most bizarre thing I have ever seen.

Note: It is difficult to say what these objects are. They could be star-link satellites. However, one light appears to blink and they are probably too bright to be star-link satellites. They could also be space debris entering the atmosphere.

Update – Mar 27, 2021: An article in the Seattle Times Newspaper confirmed that the string of “embers” was a Space X rocket crashing back to Earth. See details of article from the Seattle Times (https://www.seattletimes.com) below:

Genevieve Reaume was outside her Portland home walking her six-month-old puppy Thursday evening when she saw in the sky a fast-moving shower of glowing points of fire.

“It was right over our heads and it was just these streaks of light,” said Reaume, a TV reporter at KATU in Portland. “We’re standing in the middle of the street, watching this crazy light show above our heads, wondering: What in the world are we witnessing?”

From the big windows in her home between south Seattle and Renton, Michelle Zimmerman, principal and teacher at Renton Prep Christian School, has a view of the planes coming and going at Seattle-Tacoma International Airport.

Hearing what she thought could be explosions, she looked out and also saw the extraordinary sight: “a bunch of cool, glowing lights moving quickly and horizontally in our window view from right to left.”

“It did look really beautiful because it had kind of like a sparkly look, metallic brush strokes painted in the sky,” she said.

All over the Pacific Northwest, anyone lucky enough to be outside at 9 p.m. on Thursday witnessed something remarkable: For about 40 seconds, a cloud of fiery objects streaked across the heavens, trailing parallel tails of fire.

It was bits of a SpaceX rocket crashing back to Earth, but at the time it was a cosmic mystery.

“We were awe-struck,” said Reaume. “Completely swept up and overwhelmed with what we were seeing.”

“Of course being a news reporter, the first thing I do is grab my phone,” she said. Videos of the celestial apparition quickly went viral on social media.

In ancient times, such an event would surely have been interpreted as an augur of something very significant, the birth of a king, or a god roused to anger.

Even in modern minds, delusions of an apocalypse or an alien invasion surfaced Thursday on social media.

More sensible residents of this region grasped in the moment for other explanations.

Note to Commenters: If you are reporting a sighting, be sure to include the location (city, state, country), date and time of your sighting. Be detailed in your description. You may also use our report form to report your sighting. Comments will only be published if they are in "good taste" and not inflammatory. Also the name that you list in the comment will be posted. Use abbreviations or aliases if you don't want your name listed.

MIT Compares the Largest Satellite Internet Meganetworks: SpaceX, OneWeb, Telesat, and Amazon

In recent months, people have reported seeing a parade of star-like points passing across the night sky. The formation is not extraterrestrial, or even astrophysical in origin, but is in fact a line of satellites, recently launched by SpaceX, that will eventually be joined by many more to form Starlink, a “megaconstellation” that will wrap around the Earth as a global network designed to beam high-speed internet to users anywhere in the world.

Starlink is among a handful of global satellite networks currently in development (though not without controversy, due to effects on our view of the night sky). Each is designed to deploy thousands of satellites at various altitudes and inclination angles to the Earth, to connect remote and rural users to the internet.

Now researchers in MIT’s Department of Aeronautics and Astronautics have run a comparison of the four largest global satellite network proposals, from SpaceX, Telesat, OneWeb, and Amazon. The researchers calculated each network’s throughput, or global data capacity, based on their technical specifications as reported to the Federal Communications Commission.

While the networks vary in their proposed number and configuration of satellites, ground stations, and communication capabilities, the team found that each constellation could provide a total capacity of around tens of terabits per second.

MIT researchers assess the data capacity of proposed satellite mega-networks from SpaceX (top left), OneWeb (top right), Telesat (bottom left), and Amazon (bottom right). Shown here are the satellite configurations of each network as specified in their filings. Credit: Image courtesy of the researchers

As proposed, these megaconstellations would likely not replace current land-based networks, which can support thousands of terabits per second. However, the team concludes that the space-based fleets could fill in the gaps where conventional cable connections have been unfeasible or inaccessible, such as in rural areas, remote polar and coastal regions, and even in the air and overseas.

“We won’t be in a situation where densely populated regions like New York City or Los Angeles will be served entirely by satellite capability,” says Inigo Del Portillo, a former graduate student in MIT’s System Architecture Group. “But these constellations can bring a lot of throughput to areas where right now there is no service whatsoever, no fibers. It can be really life-changing for those areas.”

Del Portillo and his colleagues will present a paper detailing their results next week at the IEEE International Conference on Communications. The paper’s co-authors at MIT include graduate student and lead author Nils Pachler, along with Edward Crawley, the Ford Foundation Professor of Engineering, and Bruce Cameron, Director of the System Architecture Group.

A race, renewed

The vast majority of the world’s high-speed internet access comes from land-based networks — cable, DSL, fiber optics, and wireless towers — with a minority delivered through regional satellite networks. Since the 1990s, there have been various efforts to launch satellite constellations into low-Earth orbit to provide global broadband service. These efforts, however, were quickly eclipsed by a rapidly expanding land-based infrastructure.

“There was a huge bubble burst 20 years ago, and now we’re asking the question whether the massive growth in data needs can support one, or perhaps even several competitors providing global internet,” Cameron says.

In recent years, satellite hardware and software technology has advanced, and demand for broadband has grown, such that the idea for global internet coverage from space has resurfaced in a big way. SpaceX and OneWeb are deploying the first strings of satellites as part of separately proposed networks, while Telesat and Amazon are moving forward with constellations of their own.

Such meganetwork proposals have drawn criticism from the astronomy community, as the thousands of satellites launched into space would potentially obscure astronomers’ observations of astrophysical sources. For his part, Del Portillo wondered whether the new proposals would be a viable, reliable service for regions of the world where internet has been either inaccessible or unaffordable.

“I was interested in how to connect underserved populations across the world, focusing on emerging countries, and satellite constellations was one technology I was looking at, along with balloons, drones, and millimeter-wave cellphone towers,” Del Portillo says. “When I was doing my research, this whole megaconstellation idea exploded, and I was interested in knowing what were the real capabilities of these systems.”

Satellite snapshots

In 2018, as part of his PhD work, Del Portillo calculated the throughput of the three largest constellations proposed at the time, by SpaceX, OneWeb, and Telesat. Since then, all three companies have modified their initial proposals, and Amazon announced its own megaconstellation. In the new study, he aimed to update the throughput estimates for all four networks.

The team estimated each network’s total throughput based on the most recent petitions filed by each company to the FCC. Petitions include technical specifications such as the total number of satellites, the planes and inclination angles at which they will orbit, and the communication capabilities between satellites. Using these data, the team created simulations of each network’s satellite configuration and ran the simulations over a single day, taking “snapshots” every minute of each satellite’s position in the sky. They also recorded its cone of coverage, or the volume of space over which a satellite could communicate in that moment.

The researchers used an atmospheric model to vary the surrounding conditions in the moment, as well as a demand model that estimated the number of users within the satellite’s coverage area, based on a grid map of world population. They also used an algorithm to compute the number of gateways, or ground stations that the satellite would need to relay to in order to reach the most number of users. Finally, they used a link budget model to compute the satellite’s throughput.

“For each of these frozen snapshots, we run a link budget 10,000 times, each time using a different atmospheric condition, like rainy versus cloudy, and we see how the throughput, or data-rate changes,” Pachler explains. “In the end we put this together, see what the minimum throughput is, which is the bottleneck, then over all these different samples we take during the day, we get an average throughput for the entire network.”

Overall, they found that all four networks had comparable throughputs of tens of terabits per second, though each network achieves this through different configurations. For instance, Telesat has fewer satellites in its network (around 1,600), each with advanced capabilities compared to satellites in OneWeb’s network, which plans to compensate with many more satellites (more than 6,000).

SpaceX’s Starlink constellation is the closest to becoming operational, having launched more than 1,000 of its planned 4,400 satellites. In its most recent FCC filing, the company reduced the altitude of the satellites’ orbits, which the team found increased its overall throughput.

The team found that Amazon’s satellite configuration would provide the highest data rates of the four networks, if it were to also build out a disproportionately large number of gateway antennas, which the team estimates to be about 4,000 around the world. “On paper, Amazon has a higher throughput. But these companies are filing new iterations to outdo themselves and get more capable systems. So these are exciting times,” Del Portillo says. “Everyone is talking about these constellations in the space industry. Some people think they will change the world, others think they’ll fail. But there’s a lot of innovation going on.”

Reference: “An Updated Comparison of Four Low Earth Orbit Satellite Constellation Systems to Provide Global Broadband” by Nils Pachler, Inigo del Portillo, Edward F. Crawley and Bruce G. Cameron.
PDF

The international Dark Energy Survey maps hundreds of millions of galaxies to deepen our understanding of the structure of the cosmos. For six years, the Dark Energy Survey imaged these celestial objects, producing a mountain of data that researchers will mine for decades to come. Below is an article from SLAC National Accelerator Laboratory on how researchers from the Dark Energy Survey have discovered an important connection between the tiny galaxies surrounding the Milky Way and the dark matter halos that they inhabit.

Over the past five years, the Dark Energy Survey, a DOE-funded project led by Fermilab, has revolutionized our view of small satellite galaxies. DES discovered a large number of tiny galaxies close to the Milky Way’s largest satellites, the Magellanic Clouds, suggesting that multiple galaxies may have been captured by the Milky Way at the same time. In this recent analysis (resulting in two articles published in Astrophysical Journal), the DES group has combined observations from DES with those from the Pan-STARRS survey to cover 75% of the sky and confirm this hypothesis. In order to understand the sensitivity of these searches, the Fermilab group tested the algorithms ability to detect simulated galaxies injected into the survey data. The results of this search were then interpreted in the context of cosmological simulations to understand the connection between dark matter halos and the galaxies that reside in them. Analysis of the DES and Pan-STARRS data was led by Wilson Fellow Alex Drlica-Wagner and involved former Lederman Fellow Ting Li, Fermilab Scientist Brian Yanny, and many other collaborators from DES.

“By studying the smallest galaxies, we can better understand the fundamental physics that governs dark matter,” Drlica-Wagner said.

Image: Ralf Kaehler/SLAC National Accelerator Laboratory

Just as the sun has planets and the planets have moons, our galaxy has satellite galaxies, and some of those might have smaller satellite galaxies of their own. To wit, the Large Magellanic Cloud (LMC), a relatively large satellite galaxy visible from the Southern Hemisphere, is thought to have brought at least six of its own satellite galaxies with it when it first approached the Milky Way, based on recent measurements from the European Space Agency’s Gaia mission.

Astrophysicists believe that dark matter is responsible for much of that structure, and now researchers at the Department of Energy’s SLAC National Accelerator Laboratory and the Dark Energy Survey have drawn on observations of faint galaxies around the Milky Way to place tighter constraints on the connection between the size and structure of galaxies and the dark matter halos that surround them. At the same time, they have found more evidence for the existence of LMC satellite galaxies and made a new prediction: If the scientists’ models are correct, the Milky Way should have an additional 150 or more very faint satellite galaxies awaiting discovery by next-generation projects such as the Vera C. Rubin Observatory’s Legacy Survey of Space and Time.

The new study, forthcoming in the Astrophysical Journal and available as a preprint here, is part of a larger effort to understand how dark matter works on scales smaller than our galaxy, said Ethan Nadler, the study’s first author and a graduate student at the Kavli Institute for Particle Astrophysics and Cosmology (KIPAC) and Stanford University.

“We know some things about dark matter very well – how much dark matter is there, how does it cluster – but all of these statements are qualified by saying, yes, that is how it behaves on scales larger than the size of our local group of galaxies,” Nadler said. “And then the question is, does that work on the smallest scales we can measure?”

Shining galaxies’ light on dark matter

Astronomers have long known the Milky Way has satellite galaxies, including the Large Magellanic Cloud, which can be seen by the naked eye from the Southern Hemisphere, but the number was thought to be around just a dozen or so until around the year 2000. Since then, the number of observed satellite galaxies has risen dramatically. Thanks to the Sloan Digital Sky Survey and more recent discoveries by projects including the Dark Energy Survey (DES), the number of known satellite galaxies has climbed to about 60.

Such discoveries are always exciting, but what’s perhaps most exciting is what the data could tell us about the cosmos. “For the first time, we can look for these satellite galaxies across about three-quarters of the sky, and that’s really important to several different ways of learning about dark matter and galaxy formation,” said Risa Wechsler, director of KIPAC. Last year, for example, Wechsler, Nadler and colleagues used data on satellite galaxies in conjunction with computer simulations to place much tighter limits on dark matter’s interactions with ordinary matter.

Now, Wechsler, Nadler and the DES team are using data from a comprehensive search over most of the sky to ask different questions, including how much dark matter it takes to form a galaxy, how many satellite galaxies we should expect to find around the Milky Way and whether galaxies can bring their own satellites into orbit around our own – a key prediction of the most popular model of dark matter.

Hints of galactic hierarchy

The answer to that last question appears to be a resounding “yes.”

A simulation of the formation of dark matter structures from the early universe until today. Gravity makes dark matter clump into dense halos, indicated by bright patches, where galaxies form. At about 18 seconds into this simulation, a halo like the one that hosts the Milky Way begins to form near the center top of the frame. Shortly afterward, a smaller halo begins to take shape at the top center of the screen. This halo falls into the first, larger halo by about 35 seconds, mimicking the Large Magellanic Cloud’s fall into the Milky Way. SLAC and Stanford researchers, working with collaborators from the Dark Energy Survey, have used simulations like these to better understand the connection between dark matter and galaxy formation. Video: Ralf Kaehler/SLAC National Accelerator Laboratory

The possibility of detecting a hierarchy of satellite galaxies first arose some years back when DES detected more satellite galaxies in the vicinity of the Large Magellanic Cloud than they would have expected if those satellites were randomly distributed throughout the sky. Those observations are particularly interesting, Nadler said, in light of the Gaia measurements, which indicated that six of these satellite galaxies fell into the Milky Way with the LMC.

To study the LMC’s satellites more thoroughly, Nadler and team analyzed computer simulations of millions of possible universes. Those simulations, originally run by Yao-Yuan Mao, a former graduate student of Wechsler’s who is now at Rutgers University, model the formation of dark matter structure that permeates the Milky Way, including details such as smaller dark matter clumps within the Milky Way that are expected to host satellite galaxies. To connect dark matter to galaxy formation, the researchers used a flexible model that allows them to account for uncertainties in the current understanding of galaxy formation, including the relationship between galaxies’ brightness and the mass of dark matter clumps within which they form.

An effort led by the others in the DES team, including former KIPAC students Alex Drlica-Wagner, a Wilson Fellow at Fermilab and an assistant professor of astronomy and astrophysics at the University of Chicago, and Keith Bechtol, an assistant professor of physics at the University of Wisconsin-Madison, and their collaborators produced the crucial final step: a model of which satellite galaxies are most likely to be seen by current surveys, given where they are in the sky as well as their brightness, size and distance.

Those components in hand, the team ran their model with a wide range of parameters and searched for simulations in which LMC-like objects fell into the gravitational pull of a Milky Way-like galaxy. By comparing those cases with galactic observations, they could infer a range of astrophysical parameters, including how many satellite galaxies should have tagged along with the LMC. The results, Nadler said, were consistent with Gaia observations: Six satellite galaxies should currently be detected in the vicinity of the LMC, moving with roughly the right velocities and in roughly the same places as astronomers had previously observed. The simulations also suggested that the LMC first approached the Milky Way about 2.2 billion years ago, consistent with high-precision measurements of the motion of the LMC from the Hubble Space Telescope.

Galaxies yet unseen

In addition to the LMC findings, the team also put limits on the connection between dark matter halos and galaxy structure. For example, in simulations that most closely matched the history of the Milky Way and the LMC, the smallest galaxies astronomers could currently observe should have stars with a combined mass of around a hundred suns, and about a million times as much dark matter. According to an extrapolation of the model, the faintest galaxies that could ever be observed could form in halos up to a hundred times less massive than that.

And there could be more discoveries to come: If the simulations are correct, Nadler said, there are around 100 more satellite galaxies – more than double the number already discovered – hovering around the Milky Way. The discovery of those galaxies would help confirm the researchers’ model of the links between dark matter and galaxy formation, he said, and likely place tighter constraints on the nature of dark matter itself.

The research was a collaborative effort within the Dark Energy Survey, led by the Milky Way Working Group, with substantial contributions from junior members including Sidney Mau, an undergraduate at the University of Chicago, and Mitch McNanna, a graduate student at UW-Madison. The research was supported by a National Science Foundation Graduate Fellowship, by the Department of Energy’s Office of Science through SLAC, and by Stanford University.

SLAC is a vibrant multiprogram laboratory that explores how the universe works at the biggest, smallest and fastest scales and invents powerful tools used by scientists around the globe. With research spanning particle physics, astrophysics and cosmology, materials, chemistry, bio- and energy sciences and scientific computing, we help solve real-world problems and advance the interests of the nation.

Molecular Clouds: Stellar Nurseries

The most massive reservoirs of interstellar matter—and some of the most massive objects in the Milky Way Galaxy—are the giant molecular clouds. These clouds have cold interiors with characteristic temperatures of only 10–20 K most of their gas atoms are bound into molecules. These clouds turn out to be the birthplaces of most stars in our Galaxy.

The masses of molecular clouds range from a thousand times the mass of the Sun to about 3 million solar masses. Molecular clouds have a complex filamentary structure, similar to cirrus clouds in Earth’s atmosphere, but much less dense. The molecular cloud filaments can be up to 1000 light-years long. Within the clouds are cold, dense regions with typical masses of 50 to 500 times the mass of the Sun we give these regions the highly technical name clumps. Within these clumps, there are even denser, smaller regions called cores. The cores are the embryos of stars. The conditions in these cores—low temperature and high density—are just what is required to make stars. Remember that the essence of the life story of any star is the ongoing competition between two forces: gravity and pressure. The force of gravity, pulling inward, tries to make a star collapse. Internal pressure produced by the motions of the gas atoms, pushing outward, tries to force the star to expand. When a star is first forming, low temperature (and hence, low pressure) and high density (hence, greater gravitational attraction) both work to give gravity the advantage. In order to form a star—that is, a dense, hot ball of matter capable of starting nuclear reactions deep within—we need a typical core of interstellar atoms and molecules to shrink in radius and increase in density by a factor of nearly 10 20 . It is the force of gravity that produces this drastic collapse.

The i newsletter cut through the noise

Starlink is the informal name for the entrepreneur’s out of this world scheme which plans to create a constellation of thousands of low-orbit small satellites to improve internet service.

However, while many were left puzzling about the mysterious train of lights snaking across the night sky, many astronomers have slammed the billionaire for the project which they claim is 'a crime against humanity'.

They think the satellites are getting in the way of scientific observations and make it difficult for them to view the night sky as they reflect light.

They can interfere with the technology experts use to see distant phenomena, which is ground-based radio telescopes.

Many users on Twitter who spotted the Starlink express compared the sightings to Santa streaking across the December skies with his reindeer.

But others deemed it a 'total blot on the skyline' and expressed their sympathy for astronomers.

Social media users in Colorado posted photos on March 7 after spotting the row of lights moving slowly through the sky.

There are currently more than 300 Starlink satellites circling the globe, part of a constellation of thousands of satellites, designed to provide low-cost broadband internet service from low Earth orbit.

SpaceX says putting a 'constellation' of satellites in low earth orbit would provide high-speed, cable-like internet all over the world.

Musk has previously said the venture could give three billion people who currently do not have access to the internet a cheap way of getting online.

The firm eventually plans to launch 4,425 satellites into orbit above the Earth - three times as many that are currently in operation.

US Navy vid shows UFO whizzing through sky before dropping into ocean as ex-pilot says ‘military sees them all the time’

The orb-shaped object was caught buzzing the Navy ship USS Omaha in July 2019 as personnel tracked it with a targeting camera.

“Whoa he’s getting close,” one person is heard saying off-camera.

Then, seconds later, the shape goes into the ocean and disappears from view.

“Splash! Splash! Mark bearing range” the same voice is heard exclaiming.

The images and footage were published by investigative filmmaker Jeremy Corbell on Mystery Wire, and noting that the incident took place on the evening of July 15, 2019, off the coast of San Diego.

Corbell also boasts that the provenance of the still photos and video “all were captured directly from a visual system aboard the USS Omaha.”

Indeed, a Pentagon spokesperson confirmed last month that one of the freeze-frame images Corbell published was recorded by US Navy personnel, according to Mystery Wire.

Former Navy Lieutenant Ryan Graves recalled seeing bizarre objects just like the one that soared around the Omaha.

During one close call with one such foreign flying shape, the pilot can be heard gasping aloud in awe.

"Look at that thing, it's fascinating," he's heard saying as part of an interview with CBS 60 Minutes which showcases some of the archived footage.

In fact, he said he and his fellow pilots saw them zipping through the skies above restricted Virginia Beach, Virginia, airspace on a daily basis.

“Everyday, everyday for at least a couple of years,” he said in the interview set to air on Sunday.

Graves is speaking out because he's concerned the flying objects pose a serious security threat.

The federal government appears to be working to show more of what they know.

A June deadline was set to compile a seminal report after the Senate Intelligence Committee nudged the Director of National Intelligence and the Secretary of Defense to declassify some of the intel on what is categorized as Unidentified Aerial Phenomena (UAPs).

"I would say, you know, the highest probability is it's a threat observation program," Graves told 60 Minutes, and wouldn’t rule out the possibility of Russian or Chinese tech behind the encounters.

There have been other unexplained incidents.

In one encounter from 2004, USS Nimitz pilots reported seeing a tic-tac-like object in the sky.

Back in July 2019, numerous San Diego-based US warships reportedly were visited by strange vessels from above.

The USS Kidd, a Navy destroyer, was using night vision cameras and spotted several mysterious flashing objects in the skies, according to footage the Pentagon revealed to The Sun.

At the time, Sen Harry Reid told Mystery Wire: "They are coming in swarms, like bees, like insects, so many of them."

Like Graves, Reid too suspects a former Cold War foe might be orchestrating these bizarre sightings.

"Always remember Russia, the Soviet Union, is run by a man who ran the KGB.

"They had as many as 31,000 agents at one time. So Russia is involved in this, no question about it."

Former DOD official Luis Elizondo who is said to have analyzed UAPs for over a decade, told 60 Minutes that the out-of-this-world technology in the videos is beyond the capabilities of US defense.

"Imagine a technology that can do 600 to 700 G-forces, that can fly 13,000 miles an hour, that, that can evade radar and can fly through air and water and possibly space, and oh, by the way, has no obvious signs of propulsion, no wings, no control surfaces and yet still can defy the natural effects of Earth's gravity,” he said in the 60 Minutes interview.

“That's precisely what we're seeing."

Steve Bassett, the executive director of Paradigm Research Group and a lobbyist on this issue, says he believes US intelligence is preparing to end what he called a "74-year truth embargo."

The count apparently started back in 1947 when the Roswell Army Air Field (RAAF) in New Mexico distributed a press release claiming they had recovered the remains of a “flying disc” that had crashed in the desert.

The next day, the US Army backtracked and released a second statement claiming the recovered object was actually just a weather balloon.

But if the information comes forward, Bassett believes it will be the "most profound" moment in the history of mankind.