A defunct Soviet satelitte is slated to hurtle back to Earth next week, prompting concerns from space experts that we could ...

Johns Hopkins University astronomer Andrew Rivkin said the observations by Webb served as "invaluable" practice for other asteroids that may threaten us down the road. Ground telescopes have also ...

Kuiper Belt asteroids might become unstable as they ... believes the payoff — a breathable atmosphere and protection from deadly pressure loss — justifies the gamble.