UK Antarctic meteorite hunt bags large haul

https://www.bbc.com/news/science-environment-47390360

UK Antarctic meteorite hunt bags large haul

By Jonathan Amos
BBC Science Correspondent

27 February 2019

The first British-led expedition to gather meteorites in the Antarctic has returned with a haul of 36 space rocks. Manchester University's Dr Katherine Joy was dropped in the deep field with British Antarctic Survey guide Julie Baum for four weeks.

The pair spent their days near the Shackleton mountains running across the ice sheet in skidoos looking for out-of-place objects. The meteorites ranged from tiny flecks to some that were as big as a melon.

Some two-thirds of the meteorites in the world's collections have been picked up in the Antarctic. It's the contrast of black on white that makes the continent such a productive hunting ground.

"As soon as you spot a black rock you know. You dart towards it and your heart picks up a beat," Dr Joy told BBC News. "They look black because they're burnt up as they come down through Earth's atmosphere. They have a very characteristic exterior colour, and they have a kind of cracked surface where that exterior has expanded and contracted during the violent atmospheric entry."
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