Predicting the precise path of a new asteroid or comet is a complex affair; the more observations you have, the better you ...

YR4 holds a 4 per cent chance of hitting the Moon. Discovered after it had already passed Earth, the asteroid's trajectory highlights the limitations of current Earth-based detection systems.

Initial sightings of Asteroid 2032 YR4 were tricky, but tracking has gotten better, helping us understand its path. New data, ...

NASA's retired Space Shuttle Discovery could be on the move from Virginia to Texas under a provision in the GOP's so-called ...

Technology Technology   The Big Story  Musk’s third party push weighs on Tesla stock Tesla’s stock tumbled nearly 7 percent ...