Mars. NASA's Hubble Space Telescope also captures the tiny moon Phobos on its trek around the Red Planet. Discovered in 1877, moon is so small that it appears star-like in the Hubble pictures. Phobos orbits Mars in just 7hrs & 39 mins, which is faster than Mars rotates. The moon's orbit is very slowly shrinking, meaning it will eventually shatter under Mars' gravitational pull, or crash onto the planet. Hubble took 13 exposures over 22 minutes to create a time-lapse video showing the moon's orbital version of an original NASA image. Credit: NASA

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Size: 3240px × 2400px
Location: Phobos, Martian Moon
Photo credit: © NASA / digitaleye / Alamy / Afripics
License: Licensed
Model Released: No

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