CNN — Titanium bubbles found in a supernova could hold the secrets as to why some giant stars explode, a new study suggests.
Researchers found titanium in the remnants of the Cassiopeia A supernova about 11,000 light-years away.
When stars explode, they release their elements into space. Telescopes like the one at NASA’s Chandra X-ray Observatory can help find which ones Cassiopeia A released when it exploded.
Cassiopeia A is a giant bubble of hot, expanding gas, and it’s the youngest known remnant from a supernova explosion, dating back 340 years ago, in our Milky Way galaxy....