For decades, geostationary orbit (GEO) was the undisputed home of satellite communications. From television broadcasts to ...

"Rings are mostly made of ice and small rocks," said William Saunders, a planetary scientist at NASA's Langley Research ...

SpaceX's Falcon 9 bolted off the pad at 12:38 p.m. at Launch Complex 40 at Cape Canaveral Space Force Station, carrying 28 ...

Live updates from the May 14 lunchtime SpaceX Starlink 6-67 mission that launched a Falcon 9 rocket from Cape Canaveral Space ...

The president’s proposed budget includes major cuts to NASA — among them, the elimination of funding for the Nancy Grace ...

So which planets in our solar system have rings? All four giant planets — Jupiter, Saturn, Uranus and Neptune — sport these ...

It's now or never, dear readers—the final so-called 'micro' full moon this year will be culminating tonight. The moon will ...

It really depends on the higher levels of our atmosphere, but a lower dew point is a better starting point for good observing ...

A bright Moon dominates the sky, passing two bright stars as Juno reaches opposition and Mercury dips toward the horizon in ...

From solar probes to deep space missions, these record-breaking human-made objects reached speeds that make bullets and jets ...

Pioneer 10, now 7.5 billion miles (12.10 billion kilometers) from Earth, has been silent since March. Currently, a radio signal traveling at the speed of light takes more than 11 hours to reach ...