Helium gas coughs
U Camelopardalis, or U Cam for short, is a star nearing the end of its life located in the Giraffe constellation near the celestial North Pole. As it begins to run low on fuel, instability within the star's core creates coughs of helium gas every few thousand years. This one was captured by Hubble in 2012.
H. Olofsson/NASA/ESA/Reuters










