Blog

Why does E=mc^2 ?

I provide an answer for The Age and The Sydney Morning Herald's Examine!

On the matter of matter!

Where did all the matter in the cosmos come from? This is an intriguing question as we know we live in a universe that has only existed...

The most energetic objects in the universe!

A new episode on Arts Wednesday on EastSide89.7FM talking about the most energetic objects in the universe. Listen here. Image from here.

Searching for the multiverse: Fine-tuning and the future of cosmology

I wrote an article for the Institute for Art and Ideas on the multiverse. Always a controversial topic, you can read the article here.

What the flip is particle physics?

Our lives are governed by physics. It is the science of matter and energy and without both we wouldn't be here. This past century we...

The stars that time forgot remember the youth of our Milky Way

A write up of our recent Nature result in the Science Breaker

How Does Our Universe Allow us to be Here?

A new episode on EastSide radio on questions around the fundamental nature of the universe. This series was really fun to record! Listen...

Why do black holes ring?

A new Alas Lewis and Barnes episode where we explore the question of "Why black holes ring?".

Battle of the Bayes

Another repost from my old blog, this one on Bayes's theory. This is a core statistical idea in modern science, allowing you to compare...

The trip of a Lifetime

How far can we travel in an expanding universe? The answer is a little more complicated than you imagine. I explore this with Doctor Karl...

The Dark Side of the Universe

A new episode of my chat about the Universe on Arts Wednesday is now available. You can listen here.

Are globular clusters home to dark matter?

A short write up of some recent research work, undertaken by ex-PhD student, Zhen Wan, on his search for dark matter in globular...

Quantized Redshifts?

Are quantized redshift a problem for modern cosmology? Luke and I explore this topic in our most recent "Alas Lewis and Barnes" episode.

Nuclear Fusion: Mass into energy?

I'm a big fan of Dan Carlin and his Hardcore History, where he pulls apart a topic in history in all of its gory details. I am toying...

Star Trek Didn’t Invent the Term ‘Warp Drive!

When was the term 'warp drive' first used? I chatted with Chris Farnell about the 1948 short story "The Flight of the Starling" for a...

Big Bang Problems: Anomalous Redshifts?

A new Alas Lewis and Barnes video exploring an apparent problem with the Big Bang - Anomalous Redshifts!

Falling into a black hole: Just what do you see?

Another blast from the blog past! 2017 this time, and the question is "what do you see when you fall into a black hole?" There is a lot...

Cold Case: Andrew McKellar and the discovery of the Cosmic Microwave Background

Along with death and taxes, one other thing is certain: The history of science is always messier than the textbook presentation. A little...

Misconceptions about the Universe

Another post from the past, this time from 2014 on confusion about the expansion of the universe. Over on youtube, Veritasium has a nice...

The One-Way Speed of Light - Again!

A little while ago I provided input to a video by Veritasium on the One-Way Speed of Light. You can watch the video here . This is not a...