Time Travel, Without the Pesky Paradoxes

So you've built a time machine. What prevents you from creating a paradox that dooms us all?

2 months ago

First Ever Image of Quantum Entanglement

A research team from the University of Glasgow has, for the first time ever, captured an image of entangled photons.

1 year ago

Ep. 536: Everyday Relativity

Relativity is used in more day to day situations than you may realize. In this episode, we will count (some…

1 year ago

What Happens When Black Holes Collide?

Black holes are the most impressive objects in the Universe, but when happens when they crash into each other is…

4 years ago

How Far Can You Travel?

If you accelerate at 1G, you can create artificial gravity inside your spaceship. And there’s the added advantage that you…

5 years ago

Astronomy Cast Ep. 371: The Eddington Eclipse Experiment

At the turn of the 20th Century, Einstein's theory of relativity stunned the physics world, but the experimental evidence needed…

6 years ago

Astronomy Cast Ep. 370: The Kaufmann–Bucherer–Neumann Experiments

One of the most amazing implications of Einstein's relativity is the fact that the inertial mass of an object depends…

6 years ago

How Can Space Travel Faster Than The Speed Of Light?

Cosmologists are intellectual time travelers. Looking back over billions of years, these scientists are able to trace the evolution of…

6 years ago

Don’t Look At Black Holes Too Closely, They Might Disappear

We've come a long way in 13.8 billion years; but despite our impressively extensive understanding of the Universe, there are still…

6 years ago

What is Gravitational Lensing?

Gravity's a funny thing. Not only does it tug away at you, me, planets, moons and stars, but it can…

6 years ago