20180914 < Main

---+ September 14, 2018 8-10PM
*Event Type*: [[PublicLectures][Lecture and Stargazing]]<br>
*Title*: Cosmic Cartography: A Billion Stars in Six Dimensions and the Gaia Revolution<br>
*Lecturer*: Erik Petigura<br>
*Position*: Hubble Fellow<br>
*Institution*:  Caltech<br>
*Abstract*: <br>
A million miles from Earth, there is a peculiar point in space called "L2," where the gravity from the Sun and Earth strike a special balance. There, a spacecraft called Gaia is slowly rotating, once every six hours. As it rolls, its two telescopes scan the sky making the most precise map of the cosmos ever created. This talk will be an overview of the science of mapping the heavens, stretching back to the ancient Greeks and extending to the ongoing Gaia mission. I will share some of the ways that Gaia is revolutionizing all aspects of astronomy from quasars to stars to exoplanets.
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<img src="%ATTACHURLPATH%/20180914.jpg" alt="20180914.jpg" width="768" height="1024" />

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Topic revision: r3 - 2018-08-21 - OutreachAdmin