Climate changes from millions of years ago are recorded at daily rate in ancient sea shells, new research shows.

Astronomers have discovered enormous smooth shapes that look like vapour trails in a gigantic galaxy cluster. These ‘arms’ span half a million light years and provide researchers with clues to a billion years of collisions within the “giant cosmic train wreck” of the Coma cluster.

Astronomers working with NASA's Chandra X-ray Observatory have seen the giant black hole Sagittarius A* rejecting its ‘food’ of vast gas clouds as they aren’t sufficiently cool enough for it to swallow.

In 1912 a young graduate working in Cambridge University’s Cavendish Laboratory made a breakthrough that represents the birth of x-ray crystallography. Professor Sir John Meurig Thomas tells the remarkable story of the career of Lawrence Bragg, youngest-ever winner of a Nobel prize.

Women with faults in BRCA genes are more likely to develop breast cancer if they are exposed to chest X-rays before they are 30, according to a study published in the BMJ online today.