Add Yahoo as a preferred source to see more of our stories on Google. It was weirdly emotional on Monday, June 23, as several grainy white specks streaked across my computer screen while ambient ...

Approximately 4.6 billion years ago, our solar system formed from a huge disk of gas and dust orbiting our sun. The asteroids seen today are some of the most complete artifacts of this formation that ...

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?

The poster shows the sharpest images ever taken of 42 of the largest asteroids between Mars and Jupiter, captured with ESO’s Very Large Telescope in Chile. The asteroids are incredibly varied with all ...

Twenty years ago, the U.S. Congress instructed NASA to find 90% of near-Earth asteroids threatening Earth. They've made progress finding these asteroids that orbit the sun and come to within 1.3 ...