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...

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.

Destroying the One Ring in Space

I was asked by Larry, one of my students, about what would be the best place in the solar system to destroy the One Ring. Since the 25th of March is the anniversary of its destruction and the fall of Sauron I thought I’d dedicate this vlog to answering the question as seriously and as accurately as possible.

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: 10. Life The final feature for this series is Life. The Universe is such mind-boggling huge place that we are most definitely the best that random chances and selfish genes can produce. NASA defines life as a: “Self-sustaining...

Boiling water with ice

Thermodynamics is a funny area of physics, where different physical quantities are profoundly connected. In this video we look at how reducing the pressure allows you to reduce the boiling point of water.  

A60s – A Galactic Heartbeat