The Moon is no stranger to being struck by huge lumps of space rock. In fact, new research has shown that, nearly four ...

The rotation of the Earth's inner core is tied to the planet's overall rotation. Changes in the core's structure or movement can influence how fast or slow the Earth spins on its axis. Even minute ...

NASA is using its most powerful space telescope to study the true size of the "city-killer" asteroid that has a one-in-43 ...