Via AFP:
When stars explode, it's a messy business. But the massive blasts are also useful, seeding the universe with such key elements as calcium, iron and titanium.
And with the help of a new high-energy X-ray telescope, NASA said Wednesday astronomers are closer than ever to seeing just what's going on.
"This is helping us untangle the mystery surrounding how stars explode," said Fiona Harrison, principal investigator on NuSTAR, or the Nuclear Spectroscopic Telescope Array.
Combined with images from another NASA X-ray observatory, Chandra, NuSTAR has created the "first ever map of radioact...
