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Radioactive titanium powers a supernova afterglow
(Yes, I’m inundating you all with writing. It’s a busy week, and I still have a few more things forthcoming to share with you.) Supernova remnant SNR 1987a, what’s left after a bright blue star...
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Measuring the spin of a black hole using X-rays
The region near a black hole is one of the most extreme environments in the Universe, but historically it’s been hard to study directly. Using the XMM-Newton and NuSTAR telescopes, astronomers have...
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The case of the missing black holes
No question: supermassive black holes get a lot of the glory, thanks to their obvious presence at the centers of many galaxies. However, stars more than 20 times the mass of our Sun leave behind...
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Supernovas: mysterious and lumpy space explosions
The Cassiopeia A supernova remnant. [Credit: NASA/CXC/SAO]Nearly every atom of your body was forged in a supernova explosion and dispersed into space. But how do massive stars explode? The details are...
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Weird X-Rays Spur Speculation about Dark Matter Detection
[ I am reviving the Bowler Hat Science blog as a quick way to link all my new publications. Subscribe to the feed to keep up with all my stories! ] Weird X-Rays Spur Speculation about Dark Matter...
View ArticleSizing up the weirdest objects in the universe
[ This blog is dedicated to tracking my most recent publications. Subscribe to the feed to keep up with all the science stories I write! ] How big is a neutron star? Astrophysicists are combining...
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