SpaceSome of Uranus's small moons are doomed to collide The first measurement of the mass of a small Uranian moon suggests it will be obliterated after smashing into one of its neighbours in the next million years 51¶¯Âþ
SpaceMoon’s magnetic field lasted twice as long as we thought it did Lunar rock shows the moon’s magnetic field lasted a billion years longer than we thought, which may help us understand how planets keep their protective fields 51¶¯Âþ