HEAD enters the International Space Station, where astronauts must exercise for at least two hours a day to prevent bone loss and drink their own recovered urine.

To enter outer space, astronauts must have a number of qualifications and physical requirements-but it turns out that it does not just stay on Earth.

According to the NASA website, astronauts must stay healthy on the "space station" to prevent bone and muscle loss.

Astronauts on the International Space Station exercise on average about two hours a day to reduce muscle loss, but the equipment on the International Space Station is different.

Although it is very difficult to lift 200 pounds due to gravity, it is much easier to lift the same weight.

Due to microgravity, it is also difficult for astronauts to exercise accordingly, which means that special equipment must be made for astronauts to better reduce their muscle loss.

Only so much water can be carried on the International Space Station, which means that everything from urine to sweat must be preserved and turned into water.

"Speaking of our urine...today's coffee is tomorrow's coffee!" NASA astronaut Jessica Meyer said in a press release.

NASA spent $23 million to build a space toilet that uses strong acid to treat astronauts' urine to make it clean.

The toilet was launched off the coast of Virginia in early October, and the rocket transported to the International Space Station can help astronauts store some water.

However, because strong acids are used in toilets, only a few metals can withstand them for a long time.

Although titanium is one of the metals, it is very expensive, so NASA uses 3D printing technology to make titanium parts lighter than usual.

Space engineer Jim Fuller joked: "When astronauts have to go, we want them to go boldly."

However, this is not the first time astronauts drink urine.

They have been drinking this beverage on the International Space Station since 2009, but this toilet makes it more efficient and comfortable.

The International Space Station is also packed with other technological products, including the drinking fountain on the International Space Station, which is considered an intelligent machine, high-tech laboratory and an isolated confined space.

The Environmental Control and Life Support System (ECLSS) test facility provides many different technological advancements for astronauts to use airborne in space.

This includes HVAC, carbon dioxide scrubbing, oxygen generation systems and urine recovery facilities.

"According to the internal space, the size of the International Space Station is equivalent to a six-bedroom house," said photographer Roland Miller, the author of "Interior Space: A Visual Exploration of the International Space Station."

"This seems to be a rather limited environment. I believe that astronauts and astronauts will feel this way when they spend five or six months on the ship. To make the internal space project a success, I know that I have to go to great detail. Understand the interior of the station."

NASA said that the moon may soon be connected to WiFi to help solve connection problems on Earth.

A new study by the space agency shows the potential of establishing a lunar Wi-Fi network on the moon.

This move may help provide services to areas in the United States where Internet access is difficult.

In a press release, Mary Lobo, director of technology incubation and innovation at the Glenn Research Center, stated that this idea will solve "a growing social problem."

NASA’s announcement pointed out that the lack of adequate Internet access is a socio-economic problem, and it has become worse due to the pandemic.

High-speed communication between astronauts and multiple other elements (such as gateways, rover, lander, etc.) will be required.

"This lunar Wi-Fi framework is still very conceptual," NASA said in a statement.

"But the team hopes that Wi-Fi research will help inform future Artemis plans.

NASA will return to Venus in two new missions, aiming to understand how Earth’s nearest neighbor has become the hottest world today.

To determine whether the planet was once habitable, one mission will analyze the atmosphere, while another mission will map the surface of Venus.

NASA’s new director, Bill Nelson, announced two new robot missions to Venus in his first important speech to employees on Wednesday.

"Both sister missions are aimed at understanding how Venus became a hell-like world capable of melting lead on the surface," Nelson said.

Only two NASA missions in history have visited Venus-Pioneer in 1978 and Magellan in 1989.

This planet may be the first habitable planet in the solar system, and its oceans and climate are similar to those of the earth before it became the fiery world today.

"It is shocking that we know very little about Venus, but the combined results of these missions will tell us about this planet, from the clouds in its sky to the volcanoes on its surface all the way to its core," NASA Said Tom Wagner of the bureau. The discovery plan scientist said.

"It's as if we rediscovered this planet."

NASA probes fly through space and "touch the sun" with true astronomical feats.

The 300,000-mile-per-hour Parker Solar Probe will get closer - and officially become the fastest man-made object ever.

There are many ways to "touch" the sun: stars are multi-layered, and their influence extends far away from the core.

In this case, the probe glanced at the sun’s warm outer atmosphere.

It is about 6 million miles from Earth's main star-but this is not the only record.

The detector also became the fastest man-made object, traveling at an astonishing speed of 330,000 mph.

Although not everyone dreamed of becoming an astronaut when they were young, they still have the opportunity to work for space organizations.

NASA will test experimental anti-asteroid technology in a new mission, and now you can test your knowledge of space and take the quiz.

The mission is called DART or Double Asteroid Reorientation Test, and its comet and asteroid deflection technology may be launched as early as November 23.

A quiz on the NASA website asked five questions about asteroids, redirection testing, and the Office of Planetary Defense Coordination.

Passing the quiz will reward users with a digital certificate and badge for sharing on social media.

If asteroids or other objects do threaten the earth, this technology may come in handy.

You can support DART tasks by taking the quiz here.

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