Science/Nature

Aeolus: Space laser starts chasing the wind

Image copyright ESA Image caption Artwork: Developing the laser system took longer than anyone expected The British-built Aeolus satellite has begun firing its laser down on Earth to map the planet’s winds. It is a big moment for the European Space Agency mission, the technology for which took 16 years to develop. Launched two weeks […]

Science/Nature

Dolphin may be 'speaking' to porpoises

Image copyright Mel Cosentino Image caption Kylie (left) is interacting with one of the porpoises in the Firth of Clyde after becomng separated from his group. A dolphin in Scotland’s Firth of Clyde may be exchanging messages with porpoises. The dolphin, named Kylie, usually makes clicking sounds with a frequency of around 100KHz. But after […]