A Mars image shows a strange square formation. Some think it's artificial, but experts suggest natural causes.

A new high resolution interactive mosaic of Mars that works in a similar way to Google Earth has been posted online by cosmic cartographers at the Bruce Murray Laboratory for Planetary ...

NASA announced this weekend that its Ingenuity Mars Helicopter will now take its first flight on Monday, April 19. This will be the first powered flight achieved on another planet. A live stream ...

With a radius of 2,106 miles, Mars is the seventh largest planet in our solar system and about half the diameter of Earth. Its surface gravity is 37.5 percent of Earth’s. Mars rotates on its ...