Here’s what’s launching this week from June 23–29: ULA’s Kuiper 2 mission leads the way, with SpaceX Starlink flights, Rocket ...

The innermost planet of our solar system is now well placed for observers.

The crescent Moon lies in Taurus near the planet Uranus. You can easily spot the distant ice giant with binoculars or a small ...

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

The new observatory will allow astronomers to step through space and time like never before — these videos give us a taste of how.

Keenan’s System is a faint pair of interacting galaxies in Ursa Major, joined by a 22,000-light-year bridge of glowing material.

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, a landmark institution in navigation, timekeeping, and astronomy is created.

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

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

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

Explore the UGC 10214, the Tadpole Galaxy, a faint, peculiar spiral galaxy in Draco with a dramatic tidal tail and active ...