File:Gaspara, Deimos, And Phobos.jpg
(1977) 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.
Date
Taken in January 1977
Source
Gaspara, Deimos, and Phobos
Author
NASA on The Commons
Permission
(Reusing this file)
NASA on The Commons @ Flickr Commons
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.
nasaimages.org/luna/servlet/detail/nasaNAS~20~20~120999~2...(Reusing this file)
Licensing
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This image was originally posted to Flickr by NASA on The Commons at https://www.flickr.com/photos/44494372@N05/7651155116. It was reviewed on 2013-01-20 13:00:11 by FlickreviewR, who found it to be licensed under the terms of the No known copyright restrictions, which is compatible with the Commons. It is, however, not the same license as given above, and it is unknown whether that license ever was valid. |