Wind satellite survives vacuum
07 February 2018
ESA's Aeolus satellite has been particularly tricky to build. One of the main stumbling blocks has been getting its lasers to work in a vacuum, but recent tests on the satellite show that the vacuum or temperature of space won't get in the way of Aeolus measuring Earth's winds.
Aeolus carries one of the most sophisticated instruments ever to be put into orbit: Aladin, with two powerful lasers, a large telescope and very sensitive receivers.
It shoots pulses of ultraviolet light down into the atmosphere and measures the backscattered signals from molecules and aerosols to profile the world's winds.
Top story on Copernicus
22 October 2018
As part of a scientific collaboration with the Mexican Space Agency, ESA has combined images from the Copernicus Sentinel-2 mission to produce a detailed view of the vegetation growing across the entire country.
The high-resolution land-cover map combines images captured by Copernicus Sentinel-2 between 2016 and 2018.