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  Welcome to the International Space Station Tour! Hey, what's up? Don here. We're going to take a tour of the International Space Station (ISS). Let's get started! European Laboratory (Columbus Module) We begin our tour in the Columbus module, which is the European laboratory on the starboard side front area of the ISS. It's not just European, though. NASA also has racks and payloads in here. There's a lot of new stuff, including the EML (which stands for electromagnetic limitation), but I'm not exactly sure what it does. Sounds cool, though! In this module, we also grow plants like lettuce and have a workbench storage area. We even have a centrifuge to process blood samples. We also have an ultrasound machine to check on our bodies. There's a lot of science happening here, but we mostly just set things up. Node 2 Next, we move on to Node 2. This is where the vacuum cleaner is, which is an essential piece of equipment on the ISS. It's used to clean the ...

  Space Station Journey Sleeping in Space Hello, I'm Sunny Williams. I'm up here on the International Space Station. So, this is Node 2. This is a really cool module. Of course, most of these modules you'll see, they have four sides and they're put together that way so we could sort of work on a flat plane: either a wall, a floor, another wall, or the ceiling. But, you know, again, all you have to do is turn yourself and your reference changes. The reason I'm bringing that up is because this is where four out of six of us sleep. And so, people always ask about sleeping in space: do you lie down? Are you in a bed? Not really, because it doesn't matter. You don't really have the sensation of lying down. You just sit in your sleeping bag. So, here's one sleep station right here. I'm going in right now. You can follow me if you want. So, I'm inside. It's sort of like a little phone booth, but it's pretty comfy. I've got a sleeping bag rig...

  The Journey to Space The little red light is on. Producer: We are rolling. Reid Wiseman: All right. Producer: Mark it. Producer: Camera one. Anne McClain: You know, most kids start thinking about what it would be like to be up there, looking at the sky at night and seeing stars. No matter where we grow up, everybody wonders, "What else is out there?" Jessica Meir: I started saying I wanted to be an astronaut when I was five years old, according to my mom. Alvin Drew: It was the beginning of our astronauts making their way up to the moon. I remember thinking, "What is this? How do I go do this? This looks like fun." Tracy Dyson: I looked at what NASA was doing and thought, "I want to be an astronaut." That's kinda what happened. Michael Foreman: I got into Navy test pilot school and then started to apply to NASA. Don Pettit: There were 6,000 people that applied for 15 slots, and I interviewed four times over twelve years. Mike Fossum: I applied multip...

  We've all imagined what it would be like to visit outer space. But while being an astronaut is a dream for many, there was one spaceman who found himself in a real-life cosmic nightmare, being lost in space. Join me on this wild tale of the astronaut who was lost in space for 311 days. The Race for Space Our story begins in the Soviet Union, specifically in Russia. Sergei Krikalev was born on August 27th, 1958, in the city of Leningrad (now St. Petersburg). As a young boy, Sergei was fascinated by the intense space race between the Soviet Union and the USA. He continued to pursue his dream of becoming an astronaut and gained a degree in mechanical engineering in 1981. After graduating, Sergei joined the NPO Energia, the Russian industrial organization responsible for manned space flight activities. He played a crucial role in the rescue mission of the Salyut 7 space station and was eventually selected for cosmonaut training. After completing his training in 1986, Sergei earned hi...

  Ancient people saw auroras as messages from the gods, while modern science has linked them to electrified gas hurled by the sun. Now, a team of researchers is exploring plasma as a potential energy source for space travel. Dr. Ben Longmier and his team from the University of Michigan have designed a new type of rocket engine that promises faster and more efficient space travel. They are testing the rocket components by sending them aboard helium balloons to an altitude of 30 kilometers in the harsh environment above the North and South poles. The team aims to revolutionize space travel by tapping into the power of plasma, the fourth state of matter. Traditional chemical rockets, which have hardly changed in over a hundred years, are not very efficient. The heavier the payload, the more fuel a rocket needs to lift it into space. However, more fuel means more weight and more fuel needed. This limits the distance a spacecraft can travel. Ben's rockets promise greater fuel efficiency...

Is Time Travel Possible? Time travel, often depicted in science fiction, may not be as far-fetched as it seems. In fact, it is a scientific reality. By studying time travel, scientists are unraveling the deepest mysteries of the cosmos and learning more about the nature of our universe. Here's what we know: Time is something that can be bent and stretched, and we move through space-time, not just space or time. Motion through space is connected to motion through time, meaning that the faster we move through space, the slower we move through time. This phenomenon, called time dilation, has been tested and proven to be true. Albert Einstein's theory of relativity requires us to let go of our common sense ideas about what space and time are. Instead, we should think of reality as a four-dimensional place called space-time. People's personal time can run at different rates, and time passes differently for everyone. Scott Kelly, an astronaut who traveled to the International Spa...