[“What’s changed in the last 50 years” series] The lightness of our being actually depends on heaviness. That is, the physics of heavier elements. Our biology, life itself. So, looking back decades to high school (or even college) chemistry class … The Periodic Table is so much more interesting now. A deeper understanding via quantum… Continue reading Stellar alchemy – more than one way to get heavy?
Supernovas are mind-boggling. But supernovas are not all the same. For example, magnetars. Like other neutron stars, magnetars are around 20 kilometres (12 mi) in diameter and have a mass 2–3 times that of the Sun. The density of the interior of a magnetar is such that a thimble full of its substance would have a mass… Continue reading Magneto’s star