Science & Technology

Chris Hadfield

In praise of astronauts

Commander Chris Hadfield's cover of Bowie's Space Oddity, recorded on the International Space Station, has made him the talk of an entire planet. Paul Sims salutes the good humour of…

The Sun

Why is the Sun hot?

Our local star is very inefficient, says Marcus Chown. And we should be grateful for that

Maths clock

Time to rethink physics?

In his new book the theoretical physicist Lee Smolin calls for a major shift in the discipline and a recognition that rather than a relative value or an effect of…

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