Bok
02-15-2012, 05:44 PM
Light from long-ago stellar eruption holds clues to its cause
More... (http://www.sciencenews.org/view/generic/id/338471/title/Visible_echoes_reprise_19th_century_spectacle)
More... (http://www.sciencenews.org/view/generic/id/338471/title/Visible_echoes_reprise_19th_century_spectacle)