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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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Many spacecraft have looked at
the Martian system.

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1969. Mariner 7

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1971. Mariner 9

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1977. Viking 1

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1997. Pathfinder

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2000. Mars Global Surveyor

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2005. Spirit

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2008. Mars Reconnaissance
Orbiter

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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