Meteorites are rocks from space that survive their fiery descent through Earth's atmosphere and reach the ground. More than ...

Saturn has dozens of new moons, bringing it to a total of 274. All of the new moons are between 2 and 4 kilometres wide, but at what point is a rock too small to be a moon?

Thanks to this method, future eclipse maps could be accurate down to the second. However, another total solar eclipse visible from the US will not occur until 2044. Parts of Europe and the Middle ...