Asteroids
Astronomers Prepare for the Next Thousand Years of Hazardous Asteroid Impacts
It is as inevitable as the rising of the Sun and the turning of the tides. Someday another large rock…
Astronomers Want Your Help to Identify Risky Asteroids
You, too, can be an asteroid hunter --- thanks to a citizen-science project launched by the University of Arizona's Lunar…
Is This Nearby Asteroid a Chunk of the Moon?
The Moon dominates our view of the night sky. But it's not the only thing orbiting Earth. A small number…
Here's How NASA is Planning to Protect Earth From Asteroids and Comets
The large impact craters dotting our planet are powerful reminders that asteroids and comets strike the Earth from time to…
Another Look at the Aftermath of DART's Impact Into Dimorphos
When the DART spacecraft slammed into asteroid Dimorphos on September 26, 2022, telescopes worldwide (and in space) were watching as…
Don’t Panic Over the Risk of an Asteroid Smashup in 2046
A newly discovered asteroid called 2023 DW has generated quite a buzz over the past week, due to an estimated…
Remember the DART impact? Hubble Made a Movie of the Debris
When NASA crashed a 610 kg (1,340 lb) impactor into tiny Dimorphos, a moon of the asteroid Didymos, it was all part…
Recreating the Extreme Forces of an Asteroid Impact in the Lab
About 50,000 years ago, a nickel-iron meteorite some 50 meters across plowed into the Pleistocene-era grasslands of what is now…
Astronomers Find a Group of Water-rich Asteroids
If you've ever been at sea or visited a seacoast, you probably looked out at the vast expanse of ocean…
A 500-Meter-Long Asteroid Flew Past Earth, and Astronomers Were Watching
An asteroid the size of the Empire State Building flew past Earth in early February, coming within 1.8 million km…