Blow to fight against climate change as CO2 in the atmosphere hits record high
Ban Ki-Moon urges restraint as Pyongyang announces plan to reopen nuclear reactor
New discoveries are the clearest indicator yet that life could once have existed on the red planet
The Curiosity Mars rover has discovered something interesting in a scoop of ruddy sand, but Nasa scientists say they're not quite sure what it means.
Modest expectations marked the start of UN climate talks Monday, as negotiators and experts all warned that the two-week session would only lay the groundwork for a potentially ambitious global-warming pact by the end of the decade.
Killy Nymphe Down jacket
Is scientific breakthrough a milestone on the road to clean energy?
It may not twinkle like a star but it is still a diamond in the sky according to astronomers who have found a rocky planet similar to Earth but made of the precious gemstone.
A fine study of the laws of the universe interrogates what, if anything, came before the Big Bang
According to a British satellite expert and government adviser the outlandish alien imaginings of Hollywood may not be quite alien enough...
Candle flames contain millions of tiny diamond particles, a university professor has discovered.
Hal Hodson explains why a good heart is hard to find
David Phelan finds out that London no longer deserves to be known as the ‘Big Smoke’ – and discovers what other communities can do to follow its example
It is triangular, reflecting the three occasions that London has hosted the Games