Eta Cassiopeiae is a famous double star with contrasting colors. You can find it in the W-shaped constellation of the Queen ...

Serpens the Serpent is unique among the constellations because it’s separated into two parts with Ophiuchus the ...

#2. The Moon came from Earth. It didn’t form beside our planet, and Earth’s gravity didn’t capture it. The latest theory says ...

Summer arrives for northern observers as the Moon visits Venus, Uranus, and Mercury. Plus: globular cluster M15, double star ...

Honda completes its first reusable rocket test in Japan and plans suborbital launches by 2029. Discover how the company aims to expand into space technology to enhance mobility and satellite services.

Today in the history of astronomy, a remarkably round, young, and well-preserved impact crater is sighted in Canada.

Today marks the start of Northern Hemisphere summer, and also offers a chance to view night-glowing clouds if you’re lucky.

Now nearing a close conjunction, Saturn and Neptune sit just to the right of the crescent Moon in the morning sky.

The summer solstice occurs this year on Friday, June 20, at 10:42 P.M. EDT. After the June solstice, days will get shorter ...

Earth’s companion has allowed astronomers to define lunar cycles, navigate without technology, and understand celestial ...

When the Sun expands into a red giant, it will swallow the inner solar system and raise the temperature in the outer regions.

This week’s launches include Axiom 4, a historic crewed mission to the ISS, plus multiple satellite deployments from SpaceX ...