Thanks to @AstroKatie () for the collaboration!





This video is about the cosmic distance scale and how we see objects farther away in space (ie at...

Astronomers have found a new celestial object, and it's moving really, really fast!

The solar system is enormous, and includes the Kuiper Belt and the Scattered Disc, both of which turn out to be really weird in some pretty awesome ways.

There’s a small asteroid that appears to orbit Earth in a horseshoe shape. Sometimes referred to as Earth’s second moon, but it's orbit is much weirder than that.

Let's take a moment to remember the selfless sacrifices made by some amazing robotic explorers.

Cassini is about to take its final dive into the rings of Saturn, and scientists are still debating the status of water on our moon.

There are so many things we can do with poo! Waste is the enemy in matters of space exploration, but there are plenty of ways to use that waste to help make a mission successful.

NASA is sending a robot to Saturn’s giant moon Titan and instead of landing, orbiting, or driving when it gets there, this mission will fly.

A new model has been able to predict solar flares with up to about 20 hours of warning, and our galaxy is farting blobs of cold gas inside the Fermi Bubbles!

Most of the time, it’s not great when an expensive spacecraft slams into an extraterrestrial body. But now and then mission control intentionally crashes a spacecraft for science!

(NOTE: This talk was given in 2010, and this field of science has developed quickly since then. Read "Criticisms & updates" below for more details.) Astronomer Dimitar Sasselov and his colleagues search for Earth-like planets that may,...

The universe is expanding. But how much is it expanding? Is it doing expanding the same way everywhere? And can physics actually explain the expansion?

Good game design is essential for a positive player experience whether it's a board games, video game, or even dice game. So today, we're going to take some time to give you an introductory overview of the process of creating a game, and...

This video is chapter 8 in my series on special relativity, and it presents a hands-on explanation of the resolution to the Twins Paradox using the mechanical minkowski diagram, aka mechanical Lorentz transformation, aka spacetime...

Between the new, potentially Earth-like planets, organic molecules on Ceres, and SpaceX's successful launch, it's been quite a week in space!

There's a helicopter on Mars, but you don't have to go that far to make one in your own home!