These differences reveal that what an asteroid is made of—and how its surface is structured ... LICIACube made that possible ...

NASA has confirmed that the 200-foot-wide asteroid, 2019 NW5, is nearing Earth today. Travelling at a speed of 36,900 mph, it's considered a close approach by astronomers.

NASA has issued an alert regarding a massive airplane-sized asteroid, 2019 NW5, expected to pass closely by Earth today.