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Astronomy Fun Fact:

It may seem strange to devote a day of APOD to a geology lesson, but I think I know why. Our understanding of our own planet's landforms, and their appearance from space, can tell us a lot about other worlds we might visit, such as Mars.

1 posted on 11/11/2002 9:29:01 PM PST by petuniasevan
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To: MozartLover; Joan912; NovemberCharlie; snowfox; Dawgsquat; viligantcitizen; theDentist; ...

2 posted on 11/11/2002 9:29:58 PM PST by petuniasevan
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