The chances of a new Starlink satellite causing a human casualty due to falling debris is '1 in 100 million,' SpaceX explained as the company is de-orbiting hundreds of satellites.

His research has developed new laser absorption diagnostics for Stanford and the NASA Ames electric arc shock tube (EAST) and inferred time-histories and reaction rates at the extreme conditions ...

While re-entry mechanisms prevent long-term space debris accumulation, the consequences for Earth's atmosphere remain uncertain. Scientists warn that aluminium oxide particles could take 20 to 30 ...