Female astronauts answer questions from orbit after spacewalk
US astronauts Jessica Meir and Christina Koch answer questions about their all-female space walk.
Author Archives: BBC News - Science & Environment
Climate change: Widespread drying of European peatlands
Scientists call for urgent action to prevent peatlands drying out and releasing vast stores of carbon.
Are electric cars as ‘green’ as you think?
The lithium powering electric vehicles is found deep beneath the salt flats of Argentina