What would it look like from Earth if the Moon were a giant disco ball?

So, technically, this is what it would look like if the Moon were a disco ball AND orbited Earth at the same distance as the International Space Station, i.e. roughly 420 kilometers (260 miles) above the surface of the Earth. But that doesn't make it any less incredible looking. » 4/05/14 3:57pm 4/05/14 3:57pm

A sobering reminder of the risks inherent to space exploration

Via YouTuber Fabio Baccaglioni comes a solemn compilation of rocket launch failures, from the early days of space exploration to present. That it's just shy of 32 minutes long is a testament to something that can't be overemphasized: getting to space is hard. It's grueling, it's dangerous, and, as we all know too… » 3/15/14 5:15pm 3/15/14 5:15pm

Here's What Went Wrong With That Leaky NASA Spacesuit

During last week's spacewalk aboard the ISS, astronaut Luca Parmitano suffered a slight—but terrifying—wardrobe malfunction: his helmet began filling with water. Today, astronaut Chris Cassidy shows us the suit in question and guides us through exactly how it failed. » 7/30/13 2:00pm 7/30/13 2:00pm

An in-depth tour of the suit astronauts use to make repairs in space

If you've ever watched footage of a spacewalk, you've seen an astronaut outfitted in an extravehicular mobility unit (EMU), the spacesuit specially designed for astronauts working outside of spacecraft orbiting Earth at 17,220 miles per hour. » 7/08/13 6:23pm 7/08/13 6:23pm

Rocket science, explained with soda bottles

Fuel and oxidizer. Together they make propellant, which can be used to launch a rocket – but for the best results, you need to find the right ratio. Too much of one or the other, and your exhaust velocity begins to drop. Less exhaust velocity means less thrust — and less thrust means you will not go to space today. » 4/12/13 5:50pm 4/12/13 5:50pm