The ripples suggest that the lake was free of ice at one point.

Every Martian year (which last 686.98 Earth days), the red planet experiences regional dust storms that coincide with summer ...

We often forget how wonderful it is that life exists, and what a special and unique phenomenon it is. As far as we know, ours ...

"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...