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Walkabout the Galaxy

Aug 12, 2020

Low mass stars and high mass planets are the talk of the astroquarks in this episode, featuring a close-up look at the weather on Jupiter and a revisit to just what kind of stars provide the star stuff we're all made of. You can also find out what tractor beams have to do with Jedi mind tricks, and how crowded our local...


Aug 5, 2020

Deep in the interior of the Sun all the energy that supports life on Earth is created by fusing hydrogen into helium. For the first time, neutrinos produced by the relatively rare CNO fusion process in the Sun have been detected. Elsewhere, we explore a hypothesis that planets like the Earth might get their water via...


Jul 22, 2020

The asteroid really did kill the dinosaurs, but the universe seems to be hiding something deeper and more mysterious from us about how it evolves. Closer to home, the European Solar Orbiter reveals adorable campfires on the Sun. Sure they would engulf a continent or two, but from a safe distance they are charming....


Jul 15, 2020

Far, far away, beyond the Zone of Avoidance, lurking in darkest, deepest space, lies the great southern wall of galaxies! New mapping of the local universe has revealed this sheet of galaxies that is roughly one-thirtieth the size of the entire observable universe! Learn about our place in the cosmos and news...


Jul 1, 2020

Is it the tiniest black hole ever or the largest neutron star ever? We may never know, but one of them has been discovered thanks to gravitational wave observations. And an interesting black hole merger took place near the center of a distant galaxy, and we may see it get gobbled up in just a few years. Closer to home,...