00:04Fun Fact. Exploded stars created half of the calcium in the universe. That means our teeth and bones are basically
00:11the remnants of a dead star that blew up.
00:13But calcium-rich supernovae are so rare, scientists have trouble studying them. Now, for the first time ever, scientists examine
00:21one with X-ray imaging, revealing an unprecedented look at a star during the last moments of its life.
00:27The team of researchers led by Northwestern University found that the supernova emitted the most calcium ever observed in a
00:34single event.
00:35The study, published in the Astrophysical Journal, used data from the W.M. Keck Observatory, which reveals that a calcium
00:43-rich supernova is a compact star shedding an outer layer of gas in its final days.
00:48When the star blows up, material collides and it creates a chemical reaction that produces calcium due to super-hot
00:55temperatures and high pressure.
00:56Previously, scientists had indirect information about these supernovae, but now they can rule out many possibilities.
01:03We are able to live and get a very good, perhaps, as a resource.
01:05It's a face.
