Earth: April 2017

The Copernicus Sentinel-3A satellite brings us over the Bering Sea, north of the Alaska Peninsula, on 26 March.

A new NASA study is challenging a long-held theory that tsunamis form and acquire their energy mostly from vertical movement of the seafloor.

Thomas Pesque A new landing strip on a small island, this time in the Glorioso Islands. It seems not to be in use (does it count as an airport from space?)

Frequent cloud cover in the southern Atlantic Ocean often obscures satellite images of South Georgia and the South Sandwich Islands.

Brown hills speckle the eastern part of Australia's Lake MacKay in this satellite image.

Thomas Pesquet: It is not easy to see borders from space, especially around the Sahara... this mine is in Mauritania where they have been excavating copper for many years.

Sentinel-2A takes us over central-eastern Brazil - more specifically where the Bahia, Tocantins and Goiás states meet.

Composite image of Tropical Cyclone Cook, East of the Australian coast in the Pacific ocean, from 06:00 UTC on Monday 10 April 2017.

Thomas Pesquet: Time to change your desktop wallpaper? Kilometres of blue in the white-sanded Bahamas

Thomas Pesquet: In the right lighting clouds can really show their three dimensions. Better to fly above than below!

The Copernicus Sentinel-2A satellite takes us over northern Serbia to the region of Vojvodina.

Thomas PesquetL Incredible colour effects on the water of the Saloum Delta, a UNESCO World Heritage Site in Senegal. Sea levels are rising due to climate change!