For more than sixty years, a tiny asteroid has been moving in step with Earth, hidden from view until recently. Astronomers ...

The Earth eclipses the moon in this time-lapsed view from Firefly's Blue Ghost moon lander. Credit: Firefly Aerospace ...

Look east before dawn for a celestial smile: a slim crescent Moon, dazzling Venus, and the bright star Regulus will bunch ...

On Aug. 23, 1966, NASA's Lunar Orbiter 1 sent back the first photo of Earth from the moon. It showed a grainy crescent Earth ...

Three celestial bodies are preparing to meet up for one night in September in a cosmic conjunction that should be widely visible in the sky.

Remember: a total lunar eclipse is completely safe to view with the naked eye. However, stargazers hoping to catch a glimpse ...

And speaking of the break of dawn, that happens nowadays at around 5:15 a.m. local daylight time. And that's the time for ...

Three celestial bodies will meet up for one night in September in a cosmic conjunction that should be widely visible in the ...

See the epic view of the moon and Earth captured by the Orion spacecraft ahead of its outbound powered flyby. Credit: NASA / time-lapsed by Space.com's Steve Spaleta Music: Kepler's Hope by Year of th ...

A total lunar eclipse occurs when Earth comes between the sun and the moon, casting a huge neighbor over our nearest neighbor ...

Plus, catch Saturn and Neptune at their brightest; spy the "string of pearls" galaxy; and a close encounter of the moon and ...