Buried "megaripples" — some the size of five-story buildings — are helping scientists piece together the devastation ...

YR4 became the highest-rated asteroid predicted to strike Earth, and although predictions for impact have lowered, not enough ...

It's very rare that planetary geologists can tell whether it was an asteroid or comet that hit. One of the most famous of ...

Play the USA TODAY Daily Crossword Puzzle. Maybe you've heard about the asteroid that killed all the dinosaurs 66 million ...

The rock tour has officially been canceled. After two months of observations, NASA scientists have officially declared Earth ...

Researchers uncover the oldest asteroid crater in Australia, revealing its role in shaping Earth’s ancient climate.

The discovery of a massive crater formed by the impact of a meteorite more than 3.5 billion years ago is changing the way ...

Johnson reports the crater can be seen today only in a 35-mile wide dome that marks exactly where the asteroid impacted.

Lonar, Dhala & Ramgarh—and their role in shaping the Deccan Plateau. Discover cosmic collisions' lasting effects on India's ...