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Learn about planets outside our solar system through Exoplanets and Alien Solar Systems by Tahir Yaqoob, Ph.D., a book in our online store book collection.
This is an artist's picture of the Harvard Observatory placed on the background of a bunch of novae. Novae are the stars that Fleming discovered.
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Williamina Fleming

Williamina Paton Stevens Fleming was a Scottish-American astronomer who lived from 1857-1911. She discovered 10 of the 24 novae then known. Novae are stars that suddenly increase their brightness then fade to their former dimness over a period of months or years. She also discovered over 200 variable stars. Variable stars are those that change in light intensity over time. Fleming worked at the Harvard Observatory for many years.

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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