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	Podcast:		UC Science Today
	Episode:		A 'forward model' of the universe
	Category:		Science & Medicine
	Duration:		00:01:03
	Publish Date:		2016-03-29 00:00:00
	Description:		In a new astronomical survey, researchers at the Lawrence Berkeley National Laboratory aim to catalogue the sky. Astrophysicist David Schlegel is helping to generate the Legacy Survey with the end goal of what is called a “forward model” of all the objects in the universe. "This is what we aspire to, to really have a mathematical description of however many billions of objects that we see in the sky, stars and galaxies: their positions, their shapes, how bright they are, all of the measurables of these objects. And once we have this then it really makes future data from any telescope more interpretable, more quickly. Meaning that if you take some other image of the sky and we’ve already imaged it… You don’t have to look and say, hmm, I wonder what’s in that image? You’ll know right away. This project will result in the largest and most data-rich sky survey ever done, helping scientists collect information on over 30 million galaxies. This map is publicly available online as a Sky Viewer tool.
	Total Play:		0