Which way is ‘down’ has a different answer depending on where you are on Earth, in the solar system, in our galaxy and beyond ...

A newly spotted space rock has just shattered the speed record for large asteroids, spinning so quickly that by all ...

In 2018 and 2019, then-Ph.D. student Benjamin V. Rackham, astrophysicist Mark Giampapa and I published a series of studies showing how darker starspots and brighter, magnetically active stellar ...

Scientists discover asteroid spinning once every 1.88 minutes—the fastest rotation ever found for a large space rock. Five ...

Also: Bang on a Can and St. Vincent in Richard Foreman’s “What to Wear,” the celestial folk of Cassandra Jenkins, Jennifer ...

Captured by a 3,200-megapixel camera, asteroid 2025 MN45 is a half-mile giant spinning once every 1.88 minutes. This rare ...

You're not imaging it. The sun has been rising later in Illinois following the winter solstice. But the days aren't getting ...

Learn 7 fascinating facts about Earth Rotation Day 2026 and understand how our planet’s spin affects time, seasons, and life ...

Way out there in the asteroid belt is an object that's spinning so fast, scientists are surprised it hasn't flown apart.

The Vera C. Rubin Observatory has already delivered spectacular images. On them, researchers have found an asteroid that ...

An artist’s illustration depicts 2025 MN45—the fastest-rotating asteroid with a diameter over 500 meters that scientists have ...

Usually, asteroids of that size spin at a speed of 2.2 hours to avoid fragmentation, which means that 2025 MN45 is ...