Unravelling Earth’s 4.5-billion-year history with rocks is tricky business.

A catastrophic asteroid breakup may have triggered a huge wave of impacts across the inner solar system about 800 million ...

While getting ready for a camping trip, an amateur astronomer spotted a possible crater. It appears to be a match, pending ...

The Uhackatik impact crater was formed by a meteorite.

An amateur astronomer from Quebec spotted an unusual circular depression while planning a camping and road trip through the ...

Long before oceans teemed with life, Earth endured relentless violence. Asteroids slammed into its surface again and again, reshaping the young planet.

For a few days in mid-February, headlines around the world buzzed about the potential for an asteroid to hit the Earth in 2023—specifically, asteroid 2024 YR4. The chance of this impact rose to a high ...

A dive into probabilities, asteroid impact modeling, and what sort of damage an approximately 180-foot asteroid could cause on Earth. Reading time 7 minutes Odds are a funny thing. 1-in-100, for ...

A recently released animation shows a new look at a large asteroid that has a small, but significant, chance of impacting planet Earth in seven years. The animation, provided by the NASA-funded ...

An asteroid discovered late last year is continuing to stir public interest as its odds of striking planet Earth less than eight years from now continue to increase. Two weeks ago, when Ars first ...

Ever been late because you misread a clock? Sometimes, the "clocks" geologists use to date events can also be misread. Unraveling Earth's 4.5-billion-year history with rocks is tricky business. Case ...