Leonardo da Vinci is justly celebrated as an artist, but his scientific inventions did not work

South Africa’s desert is a battleground between astronomers and gas companies

Recent research into cosmic expansion is finally enabling scientists to grasp the infinite

Embryonic stem cells and assisted dying terminate opposite ends of life, but have common themes

We over-humanise animals while underestimating plants. But it’s the latter that do all the work for us

With advances in technology, we are learning more and more about the way the Sun is developing

New books on the great Italian reveal him to have been wiser than many modern scientists

He is an 18th-century deist with a message for today’s aggressive atheists: religion has a social value, and saves us from the return to a Hobbesian state of nature

The Bletchley Park cryptographers were a rum bunch. Their successors are keeping up the good work