Ask an Astronomer
NASA's Spitzer Science Center / IPAC / NASA / Caltech
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"Do other solar systems exist?" (Ask an Astronomer)
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Posted Oct 14, 2005 at 12:00 am.
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'Ask an Astronomer' explains how we detect planets around other stars.
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"What causes an eclipse of the moon?" (Ask an Astronomer)
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"Are other solar systems like our own?" (Ask an Astronomer)
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