Chandra X-ray & VLA Radio Composite image of G1.9+0.3 This composite image of the supernova remnant G1.9+0.3 combines the Chandra X-ray Observatory image taken in 2007 (orange) with the Very Large Array radio image taken in 1985 (blue) and 2008 (yellow). The difference in size between the images gives clear evidence for expansion, allowing the age of the remnant and the time since the original supernova explosion (about 140 years) to be estimated. (Credit: X-ray (NASA/CXC/NCSU/S.Reynolds et al.); Radio (NSF/NRAO/VLA/Cambridge/D.Green et al.))
Illustration of a Supernova near the Galactic Center This artist's impression shows what the supernova explosion that resulted in the formation of the supernova remnant G1.9+0.3 might have looked like. The expanding debris from the supernova explosion is shown in white, including some interaction with the surrounding gas (green). The crowded environment near the center is shown by diffuse gas (red) and dust (brown) as well as large numbers of stars with different masses and colors. (Credit: NASA/CXC/M.Weiss)