“Every day, more than a metric ton of meteoroids hits the Moon,” says Bill Cooke of the Marshall Space Flight Center’s Meteoroid Environment Office. They literally fall out of the sky, in all shapes ...

A rocky meteoroid that exploded over Canada last year was more extraordinary than it first seemed: it originated from the outer solar system, where scientists thought only icy bodies exist. A ...

People have been looking at Mars and even sending stuff up there for so long that we feel we know the place by heart: it's a reddish, dead world bathed in blueish light, filled with dust, and ready to ...

Princeton researchers used observations from NASA's Parker Solar Probe mission to deduce that it was likely a violent, catastrophic event -- such as a high-speed collision with another body or a ...

A meteoroid blasting through a Moon base would be a bad day in space. So, with NASA now planning to return astronauts to the Moon as early as 2018, scientists are combing through 30-year-old seismic ...