ISS Science

Tue, December 12 2017

How Astronauts Return to Earth

If you were freefalling back to Earth from space, would you want to rely on a couple of parachutes and some rockets to protect you from crashing? As crazy as it sounds, that is what allows astronauts aboard the Russian Soyuz capsules to safely return to Earth.

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Astronaut Randy Bresnik Aboard the ISS
Mon, December 4 2017

Photos from the ISS

Did you know that some of the coolest photos of Earth from space were not actually taken by satellites? Many were taken by astronauts aboard the International Space Station (ISS). In fact, part of the astronaut training program focuses on how to take photos in space.

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A photo of an aurora over Scotland taken by NASA astronaut Randy Bresnik aboard the International Space Station, November 24, 2017.
Tue, November 21 2017

Staying in Shape in Space

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. 

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NASA astronaut Sunita Williams exercises on a treadmill aboard the ISS.
Tue, November 14 2017

Microgravity Science Experiments

Just like you conduct experiments in your science class, astronauts do experiments while in space. The microgravity of space allows astronauts to carry out experiments that would not be possible in the gravity of Earth. There are more than 300 experiments currently happening aboard the International Space Station (ISS).

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Astronaut Kate Rubins
Tue, November 7 2017

The Meaning of Mission Patches

When you think of an astronaut’s job description, art design may not be the first thing that comes to mind. However, the astronaut crews on each mission are in charge of designing their team's mission patch. 

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The STS-130 Patch
Mon, October 23 2017

Astronaut Lingo: What Is "Puffy Head Bird Legs?"

Have you ever hung upside down for a little while? Remember how it felt to have all the blood rush to your head? When astronauts get to space, they experience a very similar sensation, which they nickname "puffy head bird legs."

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STS-130 EVA - International Space Station Cupola
Thu, October 5 2017

“Taternauts” and Spacesuits: How Astronauts Stay Safe in Space

The spacesuits that astronauts wear act as their own personal spacerafts--regulating their temperatures, and made to protect them from micrometeorites while outside of the International Space Station. Join the STEM in 30 team as they create their own "space suits" for some astronaut "Taternauts." 

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STS-130 EVA - International Space Station Cupola
Tue, October 3 2017

How Extreme Temperatures Affect Spacewalks

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.

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STS-130 EVA - International Space Station Cupola
Tue, September 26 2017

The Challenge of Communication in Space

Communication is vitally important to astronauts while they are in space. Explore how experts communicate with the astronauts aboard the International Space Station in this week's STEM in 30.

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The International Space Station (ISS)
Tue, September 12 2017

Astronaut Shares How to Get to Space

Can you imagine your teacher being chosen to be a NASA astronaut? Students in Joe Acaba’s secondary math and science classes in Florida can. Acaba was one of 11 candidates selected for the 2004 astronaut class. The process to become an astronaut is one of the most competitive and highly selective processes in the world. Do you think you have what it takes?

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Selfie with Astronaut Joe Acaba

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