The Universe in 10 Features: 6. Spiral Galaxies

As we've seen in the previous vlog, spiral Galaxies started forming from the primordial protogalaxies about 11 billion years ago. The formation of spiral galaxies is important because it happened at the peak of population II stars formation and allowed for planets to form.

Astrology is nonsense 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...

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.

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...

From the Earth to the Moon 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.

The Universe in 10 Features: 7. Elliptical Galaxies

Our 7th feature is about elliptical galaxies. Elliptical galaxies are the other main class of galaxies we find in our universe. They have a spherical stellar distribution, meaning simply that their stars' orbits are not in a plane any more, and instead have random orientations.

International Astronomy Day 2017 & Hubble at 27!

It's #International Astronomy Day and Hubble has turned 27 this month! Let's celebrate with some of its most breathtaking pictures!

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...