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NASA has some new maps showing air pollution around the world. It shows PM_2.5, that is, Particulate Matter less than 2.5 micrometers in size, small enough to get past normal bodily defenses and cause health problems. [more inside]
posted by stbalbach on Sep 23, 2010 - 32 comments

Brewster Khale over at Internet Archive just announced they are working with NASA to make available the most comprehensive compilation ever of NASA's vast collection of photographs, historic film and video at nasaimages.org. It combines for the first time 21 major NASA imagery collections into a single, searchable online resource.
posted by stbalbach on Jul 24, 2008 - 20 comments

NASA thinks we can find another Earth in another nearby star. When we do, how can we possibly travel light-years to get there? It might not be as hard as you'd think . . .
posted by stbalbach on Aug 17, 2003 - 31 comments