News
Hera spies a half-hidden asteroid moonlet
via ESA
Another early preview of the Didymos binary asteroid system from ESA’s Hera mission for planetary defence. Acquired from 56 km away, this image shows one face of the main 780-m-diameter Didymos asteroid. A small part of its 151-m-diameter Dimorphos moonlet is also visible, peeking out from near t...
Get alerted when this happens
Asteroid Alerts sends a push when something worth seeing happens — a big fireball, a close asteroid pass, a meteor shower peak or an aurora storm. Free.
One email a week
What’s passing, what’s visible, what hit.