A new listing of the 50 most concerning pieces of space debris in low-Earth orbit is dominated by relics more than a quarter-century old, primarily dead rockets left to hurtle through space at the end of their missions.
“The things left before 2000 are still the majority of the problem,” said Darren McKnight, lead author of a paper presented Friday at the International Astronautical Congress in Sydney. “Seventy-six percent of the objects in the top 50 were deposited last century, and 88 percent of the objects are rocket bodies. That’s important to note, especially with some disturbing trends right now.”
The 50 objects identified by McKnight and his coauthors are the ones most likely to drive the creation of more space junk in low-Earth orbit (LEO) through collisions with other debris fragments. The objects are whizzing around the Earth at nearly 5 miles per second, flying in a heavily trafficked part of LEO between 700 and 1,000 kilometers (435 to 621 miles) above the Earth.
An impact with even a modestly sized object at orbital velocity would create countless pieces of debris, potentially triggering a cascading series of additional collisions clogging LEO with more and more space junk, a scenario called the Kessler Syndrome.
McKnight, a senior technical fellow at the orbital intelligence company LeoLabs, spoke with Ars before the paper’s release. In the paper, analysts considered how close objects are to other space traffic, their altitude, and their mass. Larger debris at higher altitudes pose a higher long-term risk because they could create more debris that would remain in orbit for centuries or longer.
Couldn’t you have a vehicle that launched „space drone rockets“ that would somehow attach to the debris and then de-orbit the debris with small rockets? Just drag it back into orbit and it burns up?
CurlPR on
Just watch Elio last night. Space Junk was a plot point in it. Amazing that we’ve reached the point where it’s now in our cultural media.
pxr555 on
I saying this since ages: Deorbiting the largest inactive stages and satellites is low hanging fruit when it comes to fighting orbital debris because as long as they’re still intact this is much easier to do than waiting until they have turned into spreading clouds of small debris (which makes this basically impossible then).
Easiest way to do this would be to set out a bounty on them. It would make some clear business case for small launchers to attach a small craft to them and drag them out of orbit to reentry. Much better way to spend tax money than other subsidies because first it would actually achieve something useful and second you’d only have to pay out the money when someone succeeds.
WyoND on
Seems odd to refer to 38 out of 50 as “76 percent” and 44 out of 50 as “88 percent.” Why not just use the actual counts?
scottyhg1 on
To de orbit them or put them in a graveyard orbit would cost money with no reward. So why would companies or states do that. At the moment orbital recycling isn’t there. And it would be limited to own states equipment due to agreement issues. Right now like climate action it will be ignored until accidents happen
Salute-Major-Echidna on
The best video gamer at shoot em up gets first shot at taking that stuff down
ProgressBartender on
“Best I can do is have them break up in orbit into thousands of smaller objects.”
Come on, you know this is the likely answer.
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A new listing of the 50 most concerning pieces of space debris in low-Earth orbit is dominated by relics more than a quarter-century old, primarily dead rockets left to hurtle through space at the end of their missions.
“The things left before 2000 are still the majority of the problem,” said Darren McKnight, lead author of a paper presented Friday at the International Astronautical Congress in Sydney. “Seventy-six percent of the objects in the top 50 were deposited last century, and 88 percent of the objects are rocket bodies. That’s important to note, especially with some disturbing trends right now.”
The 50 objects identified by McKnight and his coauthors are the ones most likely to drive the creation of more space junk in low-Earth orbit (LEO) through collisions with other debris fragments. The objects are whizzing around the Earth at nearly 5 miles per second, flying in a heavily trafficked part of LEO between 700 and 1,000 kilometers (435 to 621 miles) above the Earth.
An impact with even a modestly sized object at orbital velocity would create countless pieces of debris, potentially triggering a cascading series of additional collisions clogging LEO with more and more space junk, a scenario called the Kessler Syndrome.
McKnight, a senior technical fellow at the orbital intelligence company LeoLabs, spoke with Ars before the paper’s release. In the paper, analysts considered how close objects are to other space traffic, their altitude, and their mass. Larger debris at higher altitudes pose a higher long-term risk because they could create more debris that would remain in orbit for centuries or longer.
Read the full story here: [https://www.wired.com/story/taking-these-50-objects-out-of-orbit-would-cut-danger-from-space-junk-in-half/](https://www.wired.com/story/taking-these-50-objects-out-of-orbit-would-cut-danger-from-space-junk-in-half/)
Couldn’t you have a vehicle that launched „space drone rockets“ that would somehow attach to the debris and then de-orbit the debris with small rockets? Just drag it back into orbit and it burns up?
Just watch Elio last night. Space Junk was a plot point in it. Amazing that we’ve reached the point where it’s now in our cultural media.
I saying this since ages: Deorbiting the largest inactive stages and satellites is low hanging fruit when it comes to fighting orbital debris because as long as they’re still intact this is much easier to do than waiting until they have turned into spreading clouds of small debris (which makes this basically impossible then).
Easiest way to do this would be to set out a bounty on them. It would make some clear business case for small launchers to attach a small craft to them and drag them out of orbit to reentry. Much better way to spend tax money than other subsidies because first it would actually achieve something useful and second you’d only have to pay out the money when someone succeeds.
Seems odd to refer to 38 out of 50 as “76 percent” and 44 out of 50 as “88 percent.” Why not just use the actual counts?
To de orbit them or put them in a graveyard orbit would cost money with no reward. So why would companies or states do that. At the moment orbital recycling isn’t there. And it would be limited to own states equipment due to agreement issues. Right now like climate action it will be ignored until accidents happen
The best video gamer at shoot em up gets first shot at taking that stuff down
“Best I can do is have them break up in orbit into thousands of smaller objects.”
Come on, you know this is the likely answer.