China’s Tiangong-1 space station fell back down to Earth this weekend, but there was no need to duck and cover. Most of the space lab burned up during re-entry, before landing in the Pacific Ocean.

What is it like to train as an astronaut? Victor Glover, part of NASA’s 2013 astronaut class, is one of the few who knows what it’s like to prepare for a journey beyond Earth’s atmosphere.

Just like athletes everywhere, astronauts have to keep in shape both on Earth and in space. Due to the lack of gravity in space, astronauts experience a decrease in muscle mass and bone density. 

Italian Astronaut Paolo Nespoli talk to the STEM in 30 team about the different challenges he has faced in space during his time on the International Space Station.

In the latest episode of ISS Science, Astronaut Randy Bresnik explains some of the challenges astronauts face during spacewalks including extreme temperatures. Then, we stimulate the effects of extreme temperatures on metals here on Earth.

You’ve probably heard of the National Aeronautics and Space Administration (NASA), but have you heard of the Italian Space Agency or the European Space Agency? NASA works with these groups, among others, to explore the frontiers of space together. It wasn’t always this way; Russia and the United States both devoted countless resources to beating each other to space in the 1960s. But today, through shared missions and space stations, we work cooperatively to explore the final frontier.

Showers, baths, swimming: these are all experiences most of us take for granted on Earth. There's nothing quite like experiencing the cool touch of water from the shower or jumping into a pool on a hot day. Gravity is what makes all of these experiences possible—it pushes that cool and refreshing water off your back and into the drain. But all that changes in space. The lack of gravity causes water and soapsuds to stick to everything.

It’s not every day that an astronaut invites you to Johnson Space Center in Houston, Texas, to work with and film them training. But that’s exactly what Randy “Komrade” Bresnik did for the STEM in 30 team. In the following months we’ll be sharing his journey with you as he travels to the International Space Station (ISS) on Expeditions 52 and 53.

It’s not a typical afternoon at work when you answer the phone and hear, "Hey, Dr. Neal. It's Kjell Lindgren calling from the International Space Station." Thus began a 15-minute surprise call from the ISS Expedition 44-45 NASA astronaut. Lindgren just wanted to say that he had with him the Museum flag and Gemini IV patch that he borrowed to take in his personal preference kit. He had unpacked them and shot some photos in the cupola for us. "I'm looking forward to bringing those back to you once I get back from my mission," he said.