Roscosmos flight engineers Oleg Artemyev and Denis Matveev completed their 6-hour, 37-minute spacewalk today at 5:37 p.m. EDT. Russian spacewalk 52 commenced at 11:01 a.m.
Researchers at ETH Zurich have developed the first high-resolution worldwide vegetation height map for 2020 using satellite pictures and an artificial neural network. This map could be useful in the