The drilling has begun today - and the team have just 24 hours to gather samples before the borehole refreezes. And all in -25 C. Tanya Mercer's report contains video from Pete Bucktrout British Antarctic Survey
Scientists from Bristol University are in Antarctica on a mission that could hold the clue to whether there's life on Mars. They're drilling through 3km of solid ice to try to find lifeforms in the water and mud underneath Lake Ellsworth.
More top news
Chillier this evening with largely clear skies.
Mainly dry with sunny spells this afternoon.
A thief who tried to snatch £20 from a disabled teenage girl has been jailed after she fought him off and passers-by pinned him down.