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Magnificent Man’s Flying Machines
Leonardo da Vinci is justly celebrated as an artist, but his scientific inventions did not work
Hullabaloo in the Great Karoo
South Africa’s desert is a battleground between astronomers and gas companies
R. W. Johnson
What Is It Like To Be Conscious?
Our minds evolved to make life worth living, a new theory claims
From Big Bang to Eternal Inflation
Recent research into cosmic expansion is finally enabling scientists to grasp the infinite
John D. Barrow
Topping and Tailing
Embryonic stem cells and assisted dying terminate opposite ends of life, but have common themes
Sex in the Flower Beds
We over-humanise animals while underestimating plants. But it’s the latter that do all the work for us
Busy Old Foolery
With advances in technology, we are learning more and more about the way the Sun is developing
Did the Earth Move for Galileo?
New books on the great Italian reveal him to have been wiser than many modern scientists
The Catholic Church
Do the Times Require a Conyers Middleton?
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 Church of England
On Her Majesty’s Secret Service
The Bletchley Park cryptographers were a rum bunch. Their successors are keeping up the good work
The ravenous longing for the infinite possibilities of “otherwhere”
The king of cakes
"Yuletide revels were designed to see you through the dark days — and how dark they seem today"
A tripod in the sky
The view from above