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 – 2. Cosmic Microwave Background

The cosmic microwave background or CMB is my second feature for this series. The CMB is formed by the original photons produced in the Big Bang and was created at the last scattering surface.

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...

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 Seven Wonders of the Milky Way

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 the Sagittarius Dwarf Elliptical Galaxy. The...

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.

Astrology is nonsense

https://www.youtube.com/watch?v=vwUJfkrPp90 I've received several questions about astrology and I thought that I could dedicate this vlog to explain why astrology is nonsense. Astrology is the belief that the apparent position of some astronomical objects in the...

Astroholic Vlog: Dyson Spheres

In this Astroholic Vlog I will be talking about Dyson Spheres. Dyson Spheres are hypothetical megastructures purposely built around stars to absorb most or all of the stellar electromagnetic output. The idea comes from science...

Smashing Galaxies

http://www.youtube.com/watch?v=qHFEmCggoLA In the first Astroholic Vlog, I present a soap box talk (minus the box) about merging galaxies.  

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