A new study out this week said that the Earth's inner core is less solid than previously thought. Scientists still have questions, though.
An asteroid becomes a meteorite when it travels to Earth from a nearby orbit or the outer solar system and collides with ...
YR4 is circling Earth and NASA predicts it could strike the planet in 2032. Here's what to know about the asteroid headed toward Earth.
Year after year, humanity is setting new records for the amount of stuff we're sending into the Earth's orbit, spurred mostly ...