Archive: 07/09/2012

Hubble sees red giant blow a bubble

(Phys.org) -- Camelopardalis, or U Cam for short, is a star nearing the end of its life. As stars run low on fuel, they become unstable. Every few thousand years, U Cam coughs out a nearly spherical shell ...

Jul 09, 2012 4.3 / 5 (4) 4 | with audio podcast