Satellite history is littered with "firsts." Many early space launches constituted key moments in the Cold War space race and ...

Low-orbit Earth could become inoperable for spacecraft and satellites if this complacency persists, with dire consequences.

New research done at NASA's Jet Propulsion Laboratory reveals potential signs of a rocky, volcanic moon orbiting an exoplanet 635 light-years from Earth. The biggest clue is a sodium cloud that the ...

NBC News’ Dana Griffin speaks with two surfers on a beach near Naples, Fla., where Hurricane Milton is approaching landfall.