The weird long cloud on Mars is finally revealing some of its secrets – Space.com

A European spacecraft is unraveling the secrets of the weird long cloud
that has been appearing again and again in the Martian sky  for years. 
The Arsia Mons Elongated Cloud
is a peculiar feature on Mars: a long, bright water ice cloud stretching out over the Martian surface, extending over the planet’s Arsia Mons volcano all the way to the volcano Olympus Mons
, the tallest mountain in the solar system. The strange phenomenon has been recurring every year around Mars’ southern solstice, with…

Click here to view the original article.