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Dig into Montana Before History: 11K Years of Hunter-Gatherers in the Rockies and Plains by D. H. MacDonald, Ph.D. See our online store book collection.

Do you think there might be life on other planets?

Do you think aliens are real? The movie Independence Day showed us aliens that wanted to destroy us and our planet. Fortunately, these kinds of aliens are not real, but do make books and movies more exciting! However, real-life scientists are busy searching for life forms that may exist on other planets.

Last year, scientists made an exciting discovery when they found a meteorite from the planet Mars. Meteorites are rocks which fall to Earth from outer space. As these rocks pass through Earth's atmosphere, they often catch fire. At nighttime, you can often see meteorites falling to Earth as "shooting stars". This meteorite, named ALH 84001, is very special because it contains chemicals and structures that look like bacteria we have on Earth. Does this mean there's life on Mars? We don't really know the answer yet, but you can be sure there are many scientists searching for clues!


Submitted by Bianca (Canada)
Submitted by Erica (Alabama, USA)
Submitted by Billy (Iowa, USA)
Submitted by Amanda (Pennsylvania, USA)
(September 2, 1997)



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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part by the National Science Foundation and NASA, our Founding Partners (the American Geophysical Union and American Geosciences Institute) as well as through Institutional, Contributing, and Affiliate Partners, individual memberships and generous donors. Thank you for your support! NASA AGU AGI NSF