Dead stars team up for supernova explosions
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/10/ticker_102015_supernova_free.jpg?fit=860%2C460&ssl=1)
BUMPER STARS Some type 1a supernovas, such as SN 1006 seen in this composite image, might be the result of two white dwarfs smashing together.
X-ray: NASA, CXC, Rutgers, G.Cassam-Chenaï, J.Hughes et al.; Radio: NRAO, AUI, NSF, GBT, VLA, Dyer, Maddalena & Cornwell; Optical: F.Winkler/Middlebury College, NOAO, AURA, NSF, CTIO Schmidt, DSS