Pluto? Not a Planet

  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 planet. According to the IAU a...

The Universe in 10 Features: 8. Population I Stars

https://www.youtube.com/watch?v=XMeIDu1C5Ls One of the fundamental laws of the universe is the conservation of Energy. Nothing is created, nothing is destroyed, and all is transformed. And so the death of the original stars brought forth new...

The Universe in 10 Features – 3. Population III Stars

http://www.youtube.com/watch?v=AlHo9ssaVGU The third feature is about Population III stars. These stars are the first lights that shone in the Universe. These stars no longer exist, but affected the environment of the early Universe. They  formed...

The Universe in 10 Features – 1. Cosmic Inflation

http://www.youtube.com/watch?v=Vn4buJ2SJjc The Universe began 13.8 billion years ago in an event called the Big Bang. Throughout its ages the universe has changed a lot, sometimes dramatically, so to appreciate these changes I'm going to discuss...

From the Earth to the Moon

http://www.youtube.com/watch?v=EHQ2wxq98Wg In this “out of office” vlog I try to clarify some misconceptions about the distance between the Earth and the Moon, using props and a wonderful animation by Digital Welshman.

Some facts on Betelgeuse going supernova

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.

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