Knowledge Base6

How does the International Space Station maintain the cabin environment?
The International Space Station (also known as ISS) is an artificial satellite that orbits the Earth at an altitude of at least 321.8 kilometers (200 miles). There are 5-6 astronauts on the ISS doing research, experiments, and so on. They do a range of things that give us a better understanding of how everything will work in space. International Space Station: The International Space Station is the most expensive object ever built by man (Photo: Wikipedia) It is obvious that there must be some mechanism, some system to ensure that the astronauts are as comfortable as possible on the space...
How far are we from the sun?
How close can we get to the sun? Robert Goddard created the world’s first liquid-fueled rocket in 1926, the Soviet Union launched an artificial Earth satellite in 1957, and about five years later, Yuri Gagarin became the first man getting into space. Sometime in the late 1960s, the world watched Neil Armstrong and Buzz Aldrin walk on the moon. And then, Voyager 1, launched in 1977, reached Saturn and its largest satellite, Titan. After that it moved further and further away from the sun. Thirty years after its launch, our gaze on the universe is extending more and more frequently...
What are the most important things to survive on Mars?
“Now, you want to settle on Mars. Although it is somewhat smaller than Earth, it still has vast land . Where is the most suitable place to settle?” NASA’s credo is to follow the water – they’re looking for evidence of the existence of life. It’s good advice for past and future humans. Water is heavy and nearly incompressible, so bringing it along to Mars is very expensive and difficult. That’s why finding water locally on Mars is the key to success. In addition, water is not just for drinking: it can be broken down into hydrogen and oxygen, which can...
In the era of rapid development of spaceflight, can space travel be realized?
What are the future of space travel? From early on, mankind has lots of inspiration, enlightenment and excitement to the stars. In the twentieth century, we took a major step forward in space exploration with the launch of the first artificial satellite in the 1950s, followed by the successful lunar landing of Apollo 11 in 1969 and the establish of the International Space Station in 1998. Today, given the growing concern about global warming and climate change, our vision is broader and more ambitious. It’s probably not hard to understand why NASA, Space X, Boeing and other companies are working on...
What Do Astronauts Experience Before They Go Into Space?
At the same time, everyone who wants to fly out of the atmosphere needs to pass an initial physical fitness training. All of conditions will be taken into account before entering NASA’s astronaut candidate training program. Before you’re finally selected,  you’ll need to pass rounds of interviews. Now the really difficult work has just begun. All selected candidates will undergo a two-year training program, during which it is not as strict as you might think. Although the candidates already have in-depth study of their fields, their training is still primarily focused on the academic side. Preparing for life in space and training...
What would happen if the earth started spinning backwards
Since the Earth was formed 450 million years ago, it has been rotating in one direction(eastward or counterclockwise). It is basically called “prograde,” meaning that the Earth’s rotation is in the same direction as that of the Sun. Most satellites go prograde around their planets, and most planets go prograde around Stars. The only exceptions in our solar system are Venus and Uranus, which rotate in the opposite direction from Sun (retrograde). However, the Earth’s prograde tendency has maintained its original way of rotation, because that is the way the universe was created. So what would happen if one day...