Russia: Bodies of 2,500 seals found along Caspian Sea coast
The seals were found on the Caspian Sea coast, but officials do not believe they died violently.
Author Archives: BBC News - Science & Environment
Out on a spacewalk with Nasa astronauts at the ISS
The astronauts installed new solar panels to give the International Space Station more power.
Earthshot Prize: Prince William announces five winners
Friends from Oman who turn CO2 into rock and a UK firm making packaging from seaweed are among the winners.