Asteroids with more energy than the nuclear bombs dropped on Hiroshima could hit Earth soon, warn scientists While we keep on reading about asteroids moving too close to Earth and possibly colliding ...

Astronomers are investigating a little-known and largely unseen group of asteroids that quietly orbit the sun alongside Venus — and there may be many more of them than we thought. "It's like ...

When we think about asteroids that could threaten Earth, we often imagine massive, city-sized rocks hurtling through space. But what if the real danger comes from much smaller, barely detectable ones?

Canadian scientists are developing a 143-lb microsatellite they say will detect and track asteroids, comets as well as other satellites. The suitcase-sized Near Earth Object Surveillance Satellite ...