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Pick a Postcard - Asteroids


This is an image of the asteroid Gaspra from Galileo on October 29, 1991.
Courtesy of NASA

This is a comparison of Gaspra (top) with Mars' two satellites, Deimos (lower left) and Phobos (lower right).
Courtesy of NASA

This is an image of the asteroid Ida seen by Galileo on its way to Jupiter on August 28, 1993.
Courtesy of NASA/JPL

This is a color image of Ida and its moon, Dactyl.
Courtesy of NASA

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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA