Mars' moon Phobos may actually be a comet — or at least part of one — that was gravitationally captured by the Red Planet long ago, a new preprint study based on previously unpublished photos ...

On Mars, it is less than a ring because the eclipsing object is the potato-shaped doomed moon Phobos crossing the Sun. On the ground, Perseverance was able to snap the celestial spectacle.

28,064 people played the daily Crossword recently. Can you solve it faster than others?28,064 people played the daily Crossword recently. Can you solve it faster than others?

Deimos is Mars' outer moon. It's a tiny, irregularly shaped moon and smaller than Mars' other moon, Phobos. Despite being unspectacular, Deimos remains a fascinating mystery. Deimos is one of only ...

have already provided data and images from Mars orbit that have helped to observe the moons. However, there was no successful attempt to land on Phobos or Deimos to date. Little is known about their ...