Hubble telescope spots doomed star that is the 'Rosetta stone' of supernovas Space.comNASA: Glitch forces Hubble Space Telescope into safe mode CNETHubble image shows distant galaxies in an epic standoff Popular ScienceAstronomers Observe 'Rosetta Stone of Supernovae' Sci-News.comNASA: Glitch forces Hubble Space Telescope into safe mode CNETView Full Coverage on Google News