G299.2-2.9, a middle-aged supernova remnant
Thursday, October 13, 2011 - 04:30
in Astronomy & Space
(PhysOrg.com) -- G299.2-2.9 is an intriguing supernova remnant found about 16,000 light years away in the Milky Way galaxy. Evidence points to G299.2-2.9 being the remains of a Type Ia supernova, where a white dwarf has grown sufficiently massive to cause a thermonuclear explosion.