Increasingly crowded orbits full of satellites and debris pose potential hazards for services on Earth, and need regulation.

Massive Mars meteoroid strike that set off 'marsquake' helps NASA understand Red Planet's crust and core - NASA researchers ...

Grab your telescopes and pray for clear skies, because February is shaping up to be another good month of stargazing in Oregon. Venus, Jupiter and Mars will dazzle in the night sky this month, giving ...