For nearly three decades, astronomers tracked a 1,250-foot-wide object relatively close to Earth that they thought was an asteroid. It looked like one. It followed the expected path. Telescopes saw no ...

Euclid space telescope observes some of the most distant regions of the visible universe for signs of dark matter and dark en ...

The European Space Agency’s Euclid telescope has spotted something it wasn’t looking for. Named C/2026 S1 (Euclid), the ...

NASA’s Lucy mission is now less than a year from reaching the Trojan asteroids near Jupiter. And it has already made some ...

Have you ever been out at night and seen a streak of light blast across the sky and disappear? Ever wonder where that shooting star came from, or how it got to be in your sky? As the director of the ...

Learn about an object in space that has emerged as a dark comet, displaying a much fainter glow than most comets. Some near-Earth objects orbiting in space have a serious identity crisis. They may ...

Tiny samples from asteroid Bennu are rewriting scientists' understanding of how our Solar System formed. New evidence suggests that Bennu was born where material from the inner and outer Solar System ...

We now have a clearer picture of what happened in the decades following the asteroid impact that led to the extinction of almost all dinosaurs ...

Asteroid or comet or meteor? Have you ever been out at night and seen a streak of light blast across the sky and disappear? Ever wonder where that shooting star came from, or how it got to be in your ...

Add Yahoo as a preferred source to see more of our stories on Google. A near-Earth object once thought to be an asteroid turns out to be a dark comet, challenging scientists' notions about identifying ...

A near-Earth object once thought to be an asteroid turns out to be a dark comet, challenging scientists' notions about identifying space rocks. Credit: NASA / JPL-Caltech illustration For nearly three ...