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

Regulus, a distant star, Venus and our moon will be visible during a conjunction tonight, and how Californians can best see ...

Just before sunrise, the waning crescent moon, the brilliant planet Venus, and Regulus, the brightest star 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 ...

Stargazers will see a thin crescent moon rise near Venus and Regulus in the pre-dawn sky, with an occultation visible in ...

September will have a trio celestial conjunction. Here's how to see the moon and Venus together in Arizona and upcoming alignments.

The crescent moon aligned with Venus and the bright star Regulus on September 19, creating a rare celestial conjunction in the morning sky. Viewers in the Northern Hemisphere can still spot the trio ...

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

A new NASA mission will capture images of Earth's invisible "halo," the faint light given off by our planet's outermost atmospheric layer, the exosphere, as it morphs and changes in response to the ...

The bottom half of the world, known as the Southern Hemisphere, is about to be treated to a partial solar eclipse that won't be visible in the US.

Watch the Sept. 21 partial solar eclipse live online with this handy livestream. Coverage begins at 2 p.m. EDT (1800 GMT).