Astronomy: Timothy Ferris eyes the amateur asteroid-watchers.
Location matters. Especially to extinction-causing asteroids.
NASA is watching closer than ever as another space rock gives Earth a close shave. Soon, we'll get even closer as a new spacecraft visits an asteroid.
Space rocks are typically tiny and dark. Even if we could spot them, it wouldn't be until they were already upon us, and by then it's too late.
What we can learn from a massive meteor crater
A set of newly released papers reconstruct the fireball's impact.
Sometimes our biggest fear is not knowing what to fear most. Fortunately, the weird science of risk analysis can teach us to judge better and fear smarter
An MIT grad student found the coolest possible way to veer an asteroid off course.
Probability: Numbers for perspective, including odds of being squashed by an asteroid or suffocation by a plastic bag.
Confused about the difference between a meteorite and a killer asteroid? We've got you covered.
Astronomers can retrace space rocks' paths to find their birthplace.
With Neil deGrasse Tyson, visiting a simulated asteroid under the sea
It might not (just) be foul play.
During the Late Heavy Bombardment, not even space rocks were safe. This is good news for historians of the solar system.
Will too many hot chili peppers kill you? Is the moon on the verge of erupting? PopSci tackles life's whys, hows and who-dunnits in this Q&A-style; feature
My brother and I have a bet: Would it be possible to blow up Mars?
It's asteroid versus volcano.
New data seems to suggest that one did.