Saturday, 30 December 2017

NuSTAR Finds New Clues to 'Chameleon Supernova

Reviewing back...
- Elizabeth Landau

An astronomer named Carl Sagan famously said. "We're made of star stuff, Nuclear reactions that happened in ancient stars generated much of the material that makes up our bodies, our planet and our solar system." When stars explode in violent deaths called supernovae, those newly formed elements escape and spread out in the universe. To explain it, scientists must reconsider established ideas about how massive stars live out their lives before exploding.

Astronomers classify exploding stars based on whether or not hydrogen is present in the event. While stars begin their lives with hydrogen fusing into helium, large stars nearing a supernova death have run out of hydrogen as fuel. But SN 2014C, discovered in 2014 in a spiral galaxy about 36 million to 46 million light-years away, is different...click here to continue!

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