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Phobos photobombs Hubble’s
picture of Mars! 

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Hubble’s 13 exposures happened
to capture a timelapse of one of
Mars’ two tiny moons.

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Hubble saw Phobos. The other
moon is Deimos.

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Both are only a few miles wide!

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Astronomer Asaph Hall discovered
them in 1877 with a telescope in
Washington, D.C.

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00:00:29,930 --> 00:00:35,269
Many spacecraft have looked at
the Martian system. 

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1969, Mariner 7

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00:00:44,912 --> 00:00:48,916
1971, Mariner 9

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00:00:48,916 --> 00:00:52,920
1977, Viking 1

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00:00:52,920 --> 00:00:56,890
1997, Pathfinder

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00:00:56,890 --> 00:01:00,861
2000, Mars Global Surveyor

12
00:01:00,861 --> 00:01:04,898
2005, Spirit

13
00:01:04,898 --> 00:01:08,802
2008, Mars Reconnaissance
Orbiter

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00:01:08,802 --> 00:01:12,105
2013, Curiosity

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Phobos and Deimos are the Greek
personifications of fear and
terror. 

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Does this Phobos photobomb
strike fear into your heart?

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www.nasa.gov/hubble
@NASAHubble