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Hell on Earth

6 December 2003

Every living thing has long since starved to death and the rock beneath your feet is starting to melt. Hazel Muir transports you billions of years into the future

From here to eternity

22 November 2003

Taking a trip from Earth to the edge of space and time? Astronomers have created an extraordinary new map showing just what you'll find. Valerie Jamieson is your cosmic tour guide

Look of life…

11 July 2003

Our search for Earth-like planets has so far failed to take one detail into account – they might look nothing like Earth. The next generation of planet hunters will need a whole new set of tools to track them down, says Betsy Mason

Crunch point

16 February 2002

Lostworlds

24 November 2001

Red, willing and able

27 January 2001

The last supper

13 November 1999

The African queen

10 September 1999

The Martians in your kidneys

20 August 1999

They said they were too small even to exist, but that doesn't mean they can't make you ill . . . Nell Boyce peers into the bizarre world of mini-bacteria

The riddle of the sands

9 July 1999

Deep in the Sahara lie vast deposits of incredibly pure glass. Nothing on Earth could have created them. Giles Wright investigates