A pod of whales stranded in Fife in 2012 are found to have had high concentrations of toxic chemicals in their bodies, scientists find.

For the first time, scientists have detected tiny, rhythmic distortions in space and time - gravitational waves - predicted by Einstein 100 years ago.

The first gravitational wave detection depended on the contributions of nearly 1,000 scientists from countries around the world.

The first direct detection of gravitational waves is without doubt one of the most remarkable breakthroughs of our time, and opens the door to a completely new way to investigate the Universe.