French astronaut Thomas Pesquet doesn't just photograph Barcelona from the space station! This strange picture was taken over Russia. He tweeted "I cannot explain these km-long parallel lines."

But a follower helped out.
This photograph shows the parallel lines of a major shelterbelt - also known as a windbreak - crossing the steppes of southern Russia near the Volga River. The image shows a 14-kilometer section of an extensive system of shelterbelts planted to protect crops and reduce the erosion of steppe soils by wind. The shelterbelt is broken where it meets a local stream.