Astronomers have discovered a Moon-sized white dwarf more massive than the Sun

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Chenoa van den Boogaard, Physics & Astronomy editor   Astronomers have discovered the smallest white dwarf yet, and it is helping them to understand the lifecycle of these celestial objects. White dwarfs are what remain when low-mass stars reach the end of their life. After around 10 billion years of turning hydrogen into helium through […]

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What the next supernova can teach us, and why astronomers hope it will come from Betelgeuse

Credit: ESO/L. Calçada

Chenoa van den Boogaard, Physics & Astronomy editor In October 2019, astronomers noticed that Betelgeuse, the red supergiant star that forms the left shoulder of the constellation Orion, was beginning to dim. While variable stars such as Betelgeuse regularly experience dim and bright phases throughout their lives, this recent dimming phase was unusual because the […]

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Why all the fuss about neutrinos?

SNOlab infrastructure

by Emmanuel Fonseca & Steph Taylor Physics & Astronomy subject editors On October 6, 2015, the winners of the 2015 Nobel Prize in Physics were announced. Canada’s Arthur Macdonald and Japan’s Takaaki Kajita would receive the award for their contributions to understanding tiny particles called neutrinos. Neutrinos (an Italian word for “little neutral one”) are […]

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