Were Saturn's moons produced during multiple impacts?

Two professors say that the unusual moons of Saturn could be explained by several large impacts in which several major satellites merged to form Titan.

Sea otters help fight global warming

Sea otters are an up-to-now unsuspected ally in the fight against global warming, say scientists from UC Santa Cruz.

'Pristine' gas from early universe discovered

Astronomers have discovered two clouds of gas that are still in the same state as they were just minutes after the Big Bang.

Galaxy simulation mirrors Milky Way for first time

Astrophysicists have for the first time created a computer model of galaxy formation that results in a spiral galaxy like our own.