Space debris as a research area focuses on the characterization, modeling, monitoring, and mitigation of artificial objects orbiting Earth that are no longer functional, including defunct satellites, spent rocket bodies, and fragmentation products. It encompasses orbital dynamics and environment modeling, collision probability assessment, re-entry prediction, material response during breakup, and the long-term evolution of the debris population. Research addresses sensor technologies and data processing for tracking, space surveillance and tracking (SST) architectures, mitigation and remediation strategies (e.g., post-mission disposal, active debris removal), and the development of technical standards and guidelines to preserve the sustainability and safety of space operations.
Imagine a piece of space debris the size of a hockey puck slams into a Starlink satellite at about 10 kilometers per second. The kinetic energy is equivalent to 2 kilograms of TNT, or a fully loaded semitruck traveling at ...
Planetary Sciences
Jul 1, 2026
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Seventy years ago, Earth had only one satellite: the moon. Now it has more than 15,000—about 10,000 of which are owned by Elon Musk's SpaceX. The world's first trillionaire plans to launch 1 million more satellites, each ...
Planetary Sciences
Jul 1, 2026
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27
When a bright fireball streaked across the Alaska sky last spring, the usual tools scientists rely on to track such events—cameras and satellites—did not provide a detailed picture. But the meteoroid left behind something ...
Planetary Sciences
Jun 30, 2026
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27
A large asteroid will zip past Earth this weekend, but don't worry: It poses no danger.
Planetary Sciences
Jun 27, 2026
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41
As humans, we live out our lives on a planet that is constantly sweeping through a cosmic ocean littered with ancient debris from the formation of the solar system. For the most part, our world glides silently through space, ...
Planetary Sciences
Jun 20, 2026
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42
A sonic boom shook Boston and the larger New England area with the force of 230 tons of TNT. The source came from outer space. The Saturday afternoon event triggered shock waves online, with thousands inquiring what could ...
Planetary Sciences
Jun 4, 2026
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41
It's getting crowded up there. Over the past few years, the advent of SpaceX's Starlink and other players in the mega-satellite constellation game are adding an exponential load of satellites and orbital debris to the low ...
Space Exploration
May 24, 2026
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22
The science academies of G7 member countries have identified international space governance as a pressing issue for the G7 Leaders' Summit, to be held from June 15–17 in Evian, France.
Space Exploration
May 23, 2026
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26
SpaceX seems to have mistaken shooting for the moon with shooting at the moon. Forecast to occur on Aug. 5, a five-story-long piece of a rocket from one of the private space exploration company's recent lunar missions is ...
Space Exploration
May 20, 2026
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62
When it comes to space debris, what goes up is coming down more often—and not safely.
Space Exploration
May 17, 2026
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39
