Sweeping views of nebulae and dancing galaxies prove the telescope’s enormous field of view and ultra-high-res capabilities.

Today in the history of astronomy, a landmark institution in navigation, timekeeping, and astronomy is created.

Venus and the Moon lie 5° apart in the predawn sky, offering a lovely naked-eye spectacle for early risers. The Moon passes ...

Today in the history of astronomy, celebrations at Stonehenge mark the summer solstice.

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 ...

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

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

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

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

NASA budget proposal slashes science funding by 47%, putting more than 40 current and planned missions at risk.