Tag

Orbital Debris

All articles tagged with #orbital debris

technology6 days ago•6 min saved

SpaceX’s AI-satellite megaconstellation could spawn a space e-waste challenge

Ars Technica analyzes SpaceX’s plan for a million AI data-center satellites, estimating that thousands could be decommissioned annually and some reenter or be moved to disposal orbits, effectively exporting significant Earth-sourced materials into space (around 1,000 tons of copper and other metals per year). This would create a new category of e-waste in orbit with environmental, regulatory, and resource lifecycle implications, prompting questions about space mining, lunar manufacturing, and how to manage the material fate of such mega-constellations.

via Ars Technica|

#ai-satellites #asteroid-mining #e-waste

space29 days ago•131 min saved

Radio Telescopes Demonstrate Real-Time Space Debris Tracking

Scientists used the MIT Lincoln Laboratory radar to emit signals that bounce off orbital debris, with reflections received by the Lovell Telescope at Jodrell Bank as part of the Long Baseline Multistatic Radar (LBMR) project. This real-time method measures how far debris is and how quickly it’s moving using a single antenna, and aims to expand to multi-telescope, three‑dimensional tracking, helping monitor the growing risk from space junk in both low Earth orbit and geostationary orbit as satellite traffic rises.

via Space|

#jodrell-bank #lbmr #orbital-debris

science1 month ago•47 min saved

Moonbound Space Junk to Crash Into the Moon at 5,400 mph, Groundbreaking Lunar Data Expected

A spent Falcon 9 upper-stage from SpaceX’s Blue Ghost Mission 2 will slam into the Moon near Einstein crater on Aug. 5, 2026, at about 5,400 mph after a year of free-floating in a complex Earth–Moon–Sun gravity dance. Scientists expect the impact to provide real data on the Moon’s subsurface structure and crater formation. Observing the event from Earth will require professional telescopes and sensors, and there’s no danger to Earth or ongoing lunar operations.

via Yahoo|

#einstein-crater #falcon-9 #moon

space1 month ago•106 min saved

Starlink's Crowded Sky Triggers Rising Collision Risk

SpaceX’s Starlink megaconstellation has carried out over 355,000 collision-avoidance maneuvers in the past year (Dec 2025–May 2026), averaging roughly 40 maneuvers per satellite as the fleet grows from about 6,000 to over 10,000. Experts warn that this rapid increase in traffic raises the risk of an on‑orbit collision with an operational Starlink satellite, and regulators are being urged to require upfront disclosure of predicted avoidance needs and fuel/automation capabilities to manage future growth and cross‑constellation congestion.

via Space|

#orbital-debris #satellites #space

space1 month ago•13 min saved

Grapefruit-Sized Vanguard 1: The Silent Oldest Satellite Still Orbiting Earth

Vanguard 1, launched in 1958 and about the size of a grapefruit, remains the oldest human-made object in Earth orbit; its radio transmitters ceased in 1964, but it continues to circle the planet, helping scientists study orbital dynamics and Earth's shape, with NASA estimating an orbital lifetime of about 240 years (re-entry around 2198) though the date is not precise.

via Space Daily|

#orbital-debris #orbital-lifetime #solar-powered-satellite

space1 month ago•105 min saved

Guarding the Night Sky: Critics Push for Environmental Review of Space-Based Data Centers

Environmental and scientific groups are pressing the FCC to require environmental reviews for licenses to deploy space-based data centers, citing SpaceX’s plan to launch up to a million satellites in low-Earth orbit and concerns about dark skies, wildlife, climate impacts from rocket launches and debris. The FCC has not yet mandated such reviews, prompting a coalition led by Earthjustice to urge regulatory scrutiny before licenses are granted.

via Space|

#environmental-impact #fcc #orbital-debris

technology1 month ago•4 min saved

Starlink Re-entry Wave: 260 Satellites Burn Up in Orbit

SpaceX told the FCC that 260 Starlink satellites re-entered and burned up in Earth's atmosphere from December 2025 to May 2026—176 first-generation and the rest second-generation—with another 349 satellites retired for disposal. In total, 1,344 Starlink satellites have re-entered to date as SpaceX continuously refreshes the constellation, sometimes deorbiting four to five per day. SpaceX maintains that re-entry incinerates the hardware with no harm to people on the ground, but researchers warn of potential ozone-depleting gas releases and are calling for environmental reviews, though the FCC is considering exemptions for large satellite constellations.

via PCMag|

#deorbit #fcc #orbital-debris

space2 months ago•15 min saved

Megaconstellations shrink Low Earth Orbit’s safety margin from months to days

Researchers introduce the CRASH Clock to estimate how long low Earth orbit could remain safe if satellites could no longer dodge each other; the margin fell from 164 days in 2018 to 5.5 days in 2025 as megaconstellations expanded, underscoring that LEO is now an infrastructure-like shared space requiring continuous coordination, accurate tracking, and robust data to prevent a rapid cascade of near-misses.

via Space Daily|

#collision-avoidance #crash-clock #low-earth-orbit

space3 months ago•12 min saved

Debris-fueled risk: NASA’s Aqua nears retirement and a lasting climate record teeters

NASA’s Aqua satellite, a cornerstone of the Earth Observing System that has tracked wildfires and climate data for 24 years, is running out of fuel and will soon lose its ability to maneuver away from space debris, threatening gaps in a decades-long climate record as orbital junk rises and no direct replacement is fully funded, with private ventures like Google’s fire-detection plans poised to fill at least part of the data gap.

via Space Daily|

#aqua-satellite #climate-data-record #debris-avoidance-maneuvers

space3 months ago•5 min saved

Fireball from Space: ISS Captures Debris Reentry Over West Africa

From the International Space Station's Cupola, NASA astronaut Chris Williams recorded a bright fireball streaking through the upper atmosphere—likely the reentry of debris from the Progress MS-34 mission. Observed at about 10:40 PM GMT on April 27 from roughly 250 miles up, the event provided a rare orbital view of how high-speed objects break up upon atmospheric entry; Williams shared photos and video on X, noting the pass over West Africa and emphasizing that such reentries typically occur over remote areas and pose no risk to people on the ground.

via The Daily Galaxy|

#fireball #iss #orbital-debris

space-exploration3 months ago•71 min saved

ISS Captures Spectacular Fireball Likely Debris Reentry After Progress MS-34 Launch

NASA astronaut Chris Williams aboard the International Space Station photographed a dramatic fireball on April 27, 2026, likely caused by debris from a satellite or the upper stage of the Soyuz rocket related to the Progress MS-34 (Progress 95) mission. The fireball appeared as the Progress 95 cargo ship—launched April 25, docked two days later and to remain attached for about seven months—passed overhead near West Africa, with Williams noting a bright streak that split into a shower of pieces. Williams is a rookie aboard an eight‑month stay, sharing the ISS with SpaceX Crew-12 astronauts Jessica Meir and Jack Hathaway, along with Sophie Adenot and Andrey Fedyaev.

via Space|

#fireball #international-space-station #nasa

science3 months ago•38 min saved

Solar storms could push crowded low-Earth orbit into a 2.8-day debris cascade

A study led by Sarah Thiele warns that today’s mega-constellations in low-Earth orbit are so crowded and maneuver-dependent that a rare disruption, especially a solar storm, could overwhelm collision-avoidance systems. Using the CRASH Clock metric, researchers estimate that a complete loss of command over avoidance could trigger a catastrophic collision in about 2.8 days, far faster than the late-2010s risk, with even a 24-hour outage carrying roughly a 30% chance of a major debris-producing event. The work highlights the fragile infrastructure of crowded space and the need for robust contingency planning amid ongoing mega-constellations.

via Earth.com|

#orbital-debris #satellites #science

environment4 months ago•32 min saved

Mega-constellations risk turning orbit into a debris nightmare

SpaceX’s Starlink mega-constellations now dominate low-Earth orbit with about 10,000 satellites and plans for up to a million more, sparking concerns over light pollution, future debris, and potential ground fallout; satellites typically burn up on re-entry, but larger mega-constellations could leave debris that falls to Earth, as seen in Saskatchewan, and Canada has no formal debris reporting or environmental regulation for space activities; experts warn of increased collision risk (Kessler syndrome) and stress the need for Canadian internet alternatives and stronger governance, since SpaceX currently controls a large share of orbital slots.

via The Narwhal|

#environment #environment-regulation #orbital-debris

space6 months ago•1 min saved

Orbit Overload: Climate Shifts Could Leave Space Junk Lingering

SpaceX has asked for permission to launch up to one million satellites to provide global internet, but researchers warn that an already crowded orbit could become messier as climate-change–driven changes in the upper atmosphere cause space debris to linger longer; by century’s end, only about half as many satellites may safely fit in orbit, even as SpaceX accounts for roughly two-thirds of all satellites launched to date (about 15,000).

via The New York Times|

#climate-change #orbital-debris #satellites

space7 months ago•4 min saved

Solar Storms Could Collapse LEO Satellite Web in Days

New analysis warns that solar storms could trigger a rapid, near-term collapse of Earth’s LEO satellite mega-constellations if command-and-control for avoidance is lost. The study introduces the CRASH Clock, estimating a catastrophic collision could occur in about 2.8 days as of mid-2025 (versus 121 days in 2018), and a 24-hour outage carries roughly a 30% chance of seeding long-term debris cascades. Solar storms heat the atmosphere, increasing drag and degrading orbit predictions while possibly disabling satellite navigation and communications, leaving many satellites unable to dodge each other. Authored by Sarah Thiele and colleagues and posted on arXiv, the work argues for real-time tracking and control to prevent a “house of cards” collapse of space infrastructure, a risk underscored by the 2024 Gannon storm and the historic Carrington Event.

via SciTechDaily|

#kessler-syndrome #megaconstellations #orbital-debris