Asteroids | Astronomy.com

A color photograph shows two men wearing glasses standing outdoors in front of a steeply tilted, layered rock formation. The older man on the left wears a white, short-sleeved button-down shirt and dark pants, while the younger man on the right wears a blue short-sleeved shirt, dark pants, and holds a small hammer. Both men are smiling at the camera and touching the rocky, tan and grayish-brown cliff face behind them under bright daylight.

Today in the History of Astronomy

June 6, 1980: The asteroid impact theory

Robotic Spaceflight, Today in the History of Astronomy

May 9, 2003: Hayabusa launches

Robotic Spaceflight, Today in the History of Astronomy

April 20, 2025: Visiting Asteroid Donaldjohanson

Today in the History of Astronomy

March 29, 1807: Heinrich Olbers discovers Vesta

Today in the History of Astronomy

March 28, 1802: Heinrich Olbers discovers Pallas

Today in the History of Astronomy

March 26, 2014: A ringed centaur

Today in the History of Astronomy

Feb. 22, 1906: The first Trojan found

Robotic Spaceflight, Today in the History of Astronomy

Feb. 12, 2001: NEAR Shoemaker touches down on Eros

Robotic Spaceflight, Science, Solar System, Space Exploration

Amino acids in Bennu may have formed differently

How to spot an asteroid tonight

How we track near-Earth asteroids

Robotic Spaceflight, Today in the History of Astronomy

Sept. 29, 2022: Seeing the DART impact