Some facts on Betelgeuse going supernova

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Every few months, I see articles about Betelgeuse, the right shoulder in the constellation of Orion, ready to go supernova. The articles vary from the sensational to the apocalyptic and I can understand why it is a fascinating subject. A supernova in our galactic backyard.

Pluto? Not a Planet

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  Pluto is still not officially a planet. No matter what most people think, both scientist and non, until the International Astronomical Union has a vote, Pluto remains a dwarf...

The Seven Wonders of the Milky Way

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http://www.youtube.com/watch?v=H2jPHp1FkcQ The Seven Wonders of the Milky Way are: The Sagittarius stream, a long, complex, structure made of stars that wrap in polar orbit around the Galaxy. It consists of tidally stripped stars from...

Meet The Overly Powerful Black Hole RX J1532

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https://youtu.be/_eZFWOdOXu0 I've been asked a few times about powerful supermassive black holes, and one of my old articles has suddenly become popular again, getting a thousand views in June, so...

Cecilia Payne-Gaposchkin: the woman who discovered what the Universe is made of.

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In this vlog, I talk about Prof. Payne-Gaposchkin, one the most important astronomers of the 20th Century. Thanks to her we know that stars are not made by the same elements as the Earth, and that Hydrogen is the most abundant element in the Universe.