Universe's early galaxies grew massive through collisions

It has long puzzled scientists that there were enormously massive galaxies that were already old and no longer forming new stars in the very early universe, approx. 3 billion years after the Big Bang.

Trillions of comets collide around Fomalhaut

A ring of dust around the nearby star Fomalhaut is created by the collision of thousands of comets every day.

Planets smashed to smithereens near supermassive black holes

The fat, doughnut-shaped clouds of dust that surround about half of supermassive black holes could be the remnants of planets and asteroids that have smashed into each other at incredible speeds.

Uranus tipped over by several collisions

Uranus was knocked on its side not by a single massive collision, as previously thought, but by a series of small thumps, researchers say.

Team looks for evidence of multiple universes

British scientists are looking for signs that we live in a multiverse - with multiple alternative universes existing in their own individual bubbles.

LHC achieves record collisions, starts gathering data

The Large Hadron Collider is up and running, and has produced its first high-energy collisions.