Bound for Jupiter, the NASA/JPL unmanned space probe Galileo swings past the asteroid Ida, discovering – for the first time – an asteroid with its own satellite, a tiny body orbiting Ida. The satellite is later named Dactyl. This is only the second asteroid to be visited by a spacecraft from Earth, and Ida also marks Galileo’s last visit to a body in the solar system before a two-year cruise toward Jupiter.
Galileo eyes Ida
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