Science Snippet: The Electromagnetic Spectrum

Merging galaxies: the bigger guy wins

As part of the Cosmos magazine Lab Talk series, I explain what happens when galaxies collide. Go to article

Sonshine FM: When I grow up

PhysicsWorld: Dark Matter and Dark Energy

In less than 100 seconds, I explain why we think dark matter and dark energy exist.
Visit for more videos, webinars and podcasts.