"Scientifically there's a huge amount we can learn from asteroids," says Alan Fitzsimmons, an astronomer at Queens University ...

On the way to investigate the scene of a historic asteroid collision, a European spacecraft swung by Mars and captured rare ...

A White House science advisor recently war-gamed with space agency heads worldwide to devise a planet-saving defense to an ...

YR4, which orbits the sun every four years and periodically crosses Earth's orbit. The nature of its orbit makes it a ...

The results of Hera's fly-by could ultimately tell us whether Deimos is a captured asteroid or made from debris from a giant ...

This is the fourth comet Gröller has discovered, but given its extraordinary distance, it was the most exciting find, he says ...

A weak magnetic field likely attracted matter inward, contributing to the formation of the outer planetary bodies, from ...

A new study suggests that ... ESO Observations Help Almost Fully Rule out 2024 YR4 Asteroid Impact Feb. 25, 2025 — New observations of 2024 YR4 conducted with the European Southern Observatory's ...

The Hera probe has swung around Mars, using the planet’s gravitational pull to fling itself toward its asteroid target. During its brief rendezvous with the Red Planet, Hera caught a glimpse of the ...

In short, asteroid 2024 YR4 went from breaking records for known threatening asteroids to being a near-zero threat. At some ...