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Collection:
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NASA Solarsystem Collection
Collection
NASA Solarsystem Collection
Collection
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title:
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Gaspra, Deimos and Phobos
title
Gaspra, Deimos and Phobos
title
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description:
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This montage shows asteroid 951 Gaspra (top) compared with Deimos (lower left) and Phobos (lower right), the moons of Mars. The three bodies are shown at the same scale and nearly the same lighting conditions.
Gaspra is about 17 kilometers (10 miles) long. All three bodies have irregular shapes due to past catastrophic conditions. However, their surfaces appear remarkably different, possibly because of differences in composition but most likely because of very different impact histories.
The Phobos and Deimos images were obtained by the Viking Orbiter spacecraft in 1977; the Gaspra image is the best of a series obtained by the Galileo spacecraft on October 29, 1991.
*Image Credit*: NASA, Jet Propulsion Laboratory
description
This montage shows asteroid 951 Gaspra (top) compared with Deimos (lower left) and Phobos (lower right), the moons of Mars. The three bodies are shown at the same scale and nearly the same lighting conditions.
Gaspra is about 17 kilometers (10 miles) long. All three bodies have irregular shapes due to past catastrophic conditions. However, their surfaces appear remarkably different, possibly because of differences in composition but most likely because of very different impact histories.
The Phobos and Deimos images were obtained by the Viking Orbiter spacecraft in 1977; the Gaspra image is the best of a series obtained by the Galileo spacecraft on October 29, 1991.
*Image Credit*: NASA, Jet Propulsion Laboratory
description
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keywords:
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Solar System Exploration
keywords
Solar System Exploration
keywords
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keywords:
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SSE
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keywords:
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Space
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keywords:
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NASA
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keywords:
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National Aeronautics and Space Administration
keywords
National Aeronautics and Space Administration
keywords
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keywords:
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JPL
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keywords:
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Jet Propulsion Laboratory
keywords
Jet Propulsion Laboratory
keywords
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keywords:
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Planets
keywords
Planets
keywords
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facet_what:
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Mars
facet_what
Mars
facet_what
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facet_what:
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Galileo
facet_what
Galileo
facet_what
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facet_what:
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Viking
facet_what
Viking
facet_what
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facet_what:
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Gaspra (asteroid)
facet_what
Gaspra (asteroid)
facet_what
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facet_where:
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Jet Propulsion Laboratory
facet_where
Jet Propulsion Laboratory
facet_where
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facet_where:
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Mars
facet_where
Mars
facet_where
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facet_where:
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Jet Propulsion Laboratory (JPL)
facet_where
Jet Propulsion Laboratory (JPL)
facet_where
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facet_when:
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1977
facet_when
1977
facet_when
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facet_when:
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October 29, 1991
facet_when
October 29, 1991
facet_when
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facet_when_year:
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1977
facet_when_year
1977
facet_when_year
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facet_when_year:
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1991
facet_when_year
1991
facet_when_year
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UID:
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SPD-SLRSY-890
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original url:
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original_url
original url
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