Looking for a sky event this week? Check out our full Sky This Week column. July 3: Glimpse the Milky Way's center Mars ...

Astronomy Photographer of the Year 2026 shortlist features eclipses, nebulae, aurorae and Milky Way images ahead of the ...

The Moon passes 1.9° due north of Neptune at 6 A.M. EDT this morning. Early rises will be able to catch the Moon hanging between Venus and Mercury in the predawn sky — check out last week’s column for ...

The world's newest astronomical observatory has begun producing an unprecedented stream of data on asteroids, supernovae and ...

There are also concerns that huge amounts of space debris from satellites could increasingly crash into each other in a ...

The night sky above the world’s best observatories has long been prized for one thing above all: darkness. Now that darkness ...

The Bullet Cluster is considered important evidence for the existence of dark matter. Now a research team believes it can ...

Experts warn Elon Musk's satellites could 'end astronomy' and 'light up the night sky’. Astronomers have warned that Elon ...

"With the launch of the ten-year Legacy Survey of Space and Time, the Rubin Observatory is opening a new window on the ...

Short-lived sources of radio radiation in the sky, known as radio transients, can originate in the vicinity of supermassive black holes in the centers of galaxies. They are the result of processes ...

As the U.S. celebrates its 250th birthday, here's what Benjamin Franklin and other colonists would have seen when they looked ...