Category Archives: Vlog

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 planet is defined as a celestial body that satisfy

The Seven Wonders of the Milky Way

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 multi-planet planetary system around the millisecond pulsar PSR 1257+12.

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.

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 sky at the time of birth influences a person’s character

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 fiction, but it was formalised by Freeman Dyson in the

Smashing Galaxies

In the first Astroholic Vlog, I present a soap box talk (minus the box) about merging galaxies.