1 . After decades of exploring the moon, a dramatic vision is finally becoming reality. The Guardian recently reported that a project called Lunar Codex is planning to send and store over 30,000 works on the moon from artists, writers, filmmakers, and musicians from over 150 countries and regions. The goods to be stored range from novels and paintings to music, films，and even soil from Earth.

In fact, this is not the first time that people have tried sending human legacies (遗产) to outer space. In 1969, the Apollo 12 mission carried a ceramic piece with drawings. In 1971, the Apollo 15 staff left a sculpture to honor those who had died in space exploration. What’s more famous is the Golden Record carried by spacecraft Voyager 1 and 2 from NASA in 1977, which contains human language, music and images. For example, a piece of Chinese guqin music, called Flowing Streams was included in it.

Although we don’t know who determines which symbols of human legacy get sent out to space in most projects, it’s obvious that the criteria keep changing. In the past，space heritage products only focused on space-related works; but gradually, more human-related contemporary goods which held great importance in their respective eras have been added to the list. In the Lunar Codex, films, diverse art and literary works produced by women, disabled artists, and even AI have been collected for the first time to be sent to the moon.

These changing criteria also leave space for ordinary people to imagine and think. Many people are now trying to store their DNA information digitally. Will people be able to find even more surprising and inventive ways to preserve their legacy in the future? Only time can tell.

2 . US Army veteran (退伍老兵) Mazyck remembers when doctors told her she would never walk again. She’d been paralyzed from the waist down after a serious accident while parachuting in 2003.The doctors never said anything about floating, though. In 2021,she got to do just that.

Mazyck was one of 12 participants in a Zero G flight, organized by the group AstroAccess. This type of flight recreates the weightlessness that astronauts experience without going all the way to space. Flying over the Pacific Ocean off Southern California, the modified 747 jet airplane made 15 steep dives and climbs, allowing the flyers multiple periods of weightlessness.

The experience left Mazyck feeling joyful. “The flight was something that I would have never in my wildest dreams thought I would’ve experienced,” she says, “especially the floating, the weightlessness.”

Traditionally, strict physical requirements have prevented disabled people from becoming astronauts. AstroAccess is working to make space accessible to all. “Space removes the barriers between people; now is the time to remove the barriers to space itself,” says Mazyck, “It is sending a message to people who have historically been excluded from STEM that not only is there room for you in space, there is a need for you.”

During the flight, she says, the participants did experiments and made observations. They took note of things that people without certain disabilities might not realize are issues. For example, people who couldn’t grip with their legs needed another way to hold themselves still while weightless. The group also experimented with signaling lights for the deaf and with ways of using braille (盲文) for the blind.

These types of issues are easy enough to address. Now is the time to make space accessible — before space tourism or space settlements become commonplace. “I am so proud and elated about what’s happening here,” Mazyck adds. “We are paving the way for the future.”

3 . US Army veteran (退伍老兵) Mazyck remembers when doctors told her she would never walk again. She’d been paralyzed from the waist down after a serious accident while parachuting in 2003.The doctors never said anything about floating, though. In 2021,she got to do just that.

Mazyck was one of 12 participants in a Zero G flight, organized by the group AstroAccess. This type of flight recreates the weightlessness that astronauts experience without going all the way to space. Flying over the Pacific Ocean off Southern California, the modified 747 jet airplane made 15 steep dives and climbs, allowing the flyers multiple periods of weightlessness.

The experience left Mazyck feeling joyful. “The flight was something that I would have never in my wildest dreams thought I would’ve experienced,” she says, “especially the floating, the weightlessness.”

Traditionally, strict physical requirements have prevented disabled people from becoming astronauts. AstroAccess is working to make space accessible to all. “Space removes the barriers between people; now is the time to remove the barriers to space itself,” says Mazyck, “It is sending a message to people who have historically been excluded from STEM that not only is there room for you in space, there is a need for you.”

During the flight, she says, the participants did experiments and made observations. They took note of things that people without certain disabilities might not realize are issues. For example, people who couldn’t grip with their legs needed another way to hold themselves still while weightless. The group also experimented with signaling lights for the deaf and with ways of using braille (盲文) for the blind.

These types of issues are easy enough to address. Now is the time to make space accessible — before space tourism or space settlements become commonplace. “I am so proud and elated about what’s happening here,” Mazyck adds. “We are paving the way for the future.”

4 . US Army veteran (退伍老兵) Mazyck remembers when doctors told her she would never walk again. She’d been paralyzed from the waist down after a serious accident while parachuting in 2003.The doctors never said anything about floating, though. In 2021,she got to do just that.

Mazyck was one of 12 participants in a Zero G flight, organized by the group AstroAccess. This type of flight recreates the weightlessness that astronauts experience without going all the way to space. Flying over the Pacific Ocean off Southern California, the modified 747 jet airplane made 15 steep dives and climbs, allowing the flyers multiple periods of weightlessness.

The experience left Mazyck feeling joyful. “The flight was something that I would have never in my wildest dreams thought I would’ve experienced,” she says, “especially the floating, the weightlessness.”

Traditionally, strict physical requirements have prevented disabled people from becoming astronauts. AstroAccess is working to make space accessible to all. “Space removes the barriers between people; now is the time to remove the barriers to space itself,” says Mazyck, “It is sending a message to people who have historically been excluded from STEM that not only is there room for you in space, there is a need for you.”

During the flight, she says, the participants did experiments and made observations. They took note of things that people without certain disabilities might not realize are issues. For example, people who couldn’t grip with their legs needed another way to hold themselves still while weightless. The group also experimented with signaling lights for the deaf and with ways of using braille (盲文) for the blind.

These types of issues are easy enough to address. Now is the time to make space accessible — before space tourism or space settlements become commonplace. “I am so proud and elated about what’s happening here,” Mazyck adds. “We are paving the way for the future.”

7 . Space is becoming more crowded. Quite a few low-Earth-orbit (LEO) satellites have been launched into the sky, which are designed to move around the Earth only a few hundred kilometres above its surface. SpaceX and OneWeb plan to launch LEO satellites in their thousands, not hundreds, to double the total number of satellites in orbit by 2027.

That promises to change things on Earth. LEO satellites can bring Internet connectivity to places where it is still unavailable. This will also be a source of new demand for the space economy. Morgan Stanley, a bank, projects that the space industry will grow from $350 billion in 2016 to more than $1.1 trillion by 2040. New Internet satellites will account for half this increase.

For that to happen, however, three worries must be overcome. Debris (碎片) is the most familiar concern. As long ago as 1978, Donald Kessler, a scientist at NASA, proposed a scenario (设想) in which, when enough satellites were packed into low-Earth orbits, any collision could cause a chain reaction which would eventually destroy all spacecraft in its orbital plane. Solutions exist. One solution is to grab the satellites with problems and pull them down into the Earth’s atmosphere. Another is to monitor space more closely for debris. But technology is only part of the answer. Rules are needed to deal with old satellites safely from low-Earth orbits.

Cyber-security is a second, long-standing worry. Hackers could take control of a satellite and steal intellectual property, redirect data flows or cause a collision. The satellite industry has been slow to respond to such concerns. But as more of the world’s population comes to rely on space for access to the Internet, the need for action intensifies. Measures will surely be taken to protect network security.

The third issue follows from the first two. If a simple mistake or a cyber-attack can cause a chain reaction which wipes out hundreds of billions of dollars of investment, who is responsible for that? Now the plans of firms, wishing to operate large numbers of satellites are being studied. But there is a long way to go before the risks are well understood, let alone priced.

As space becomes more commercialized, mind-bending prospects open up: packages moved across the planet in minutes by rocket rather than by plane, equipment sent to other small planets, passengers launched into orbit and beyond. All that and more may come one day. But such activities would raise the same questions as LEO satellites do. They must be answered before the space economy can truly develop.

8 . Space is becoming more crowded. Quite a few low-Earth-orbit (LEO) satellites have been launched into the sky, which are designed to move around the Earth only a few hundred kilometres above its surface. SpaceX and OneWeb plan to launch LEO satellites in their thousands, not hundreds, to double the total number of satellites in orbit by 2027.

That promises to change things on Earth. LEO satellites can bring Internet connectivity to places where it is still unavailable. This will also be a source of new demand for the space economy. Morgan Stanley, a bank, projects that the space industry will grow from $350 billion in 2016 to more than $1.1 trillion by 2040. New Internet satellites will account for half this increase.

For that to happen, however, three worries must be overcome. Debris (碎片) is the most familiar concern. As long ago as 1978, Donald Kessler, a scientist at NASA, proposed a scenario (设想) in which, when enough satellites were packed into low-Earth orbits, any collision could cause a chain reaction which would eventually destroy all spacecraft in its orbital plane. Solutions exist. One solution is to grab the satellites with problems and pull them down into the Earth’s atmosphere. Another is to monitor space more closely for debris. But technology is only part of the answer. Rules are needed to deal with old satellites safely from low-Earth orbits.

Cyber-security is a second, long-standing worry. Hackers could take control of a satellite and steal intellectual property, redirect data flows or cause a collision. The satellite industry has been slow to respond to such concerns. But as more of the world’s population comes to rely on space for access to the Internet, the need for action intensifies. Measures will surely be taken to protect network security.

The third issue follows from the first two. If a simple mistake or a cyber-attack can cause a chain reaction which wipes out hundreds of billions of dollars of investment, who is responsible for that? Now the plans of firms, wishing to operate large numbers of satellites are being studied. But there is a long way to go before the risks are well understood, let alone priced.

As space becomes more commercialized, mind-bending prospects open up: packages moved across the planet in minutes by rocket rather than by plane, equipment sent to other small planets, passengers launched into orbit and beyond. All that and more may come one day. But such activities would raise the same questions as LEO satellites do. They must be answered before the space economy can truly develop.

9 . Space is becoming more crowded. Quite a few low-Earth-orbit (LEO) satellites have been launched into the sky, which are designed to move around the Earth only a few hundred kilometres above its surface. SpaceX and OneWeb plan to launch LEO satellites in their thousands, not hundreds, to double the total number of satellites in orbit by 2027.

That promises to change things on Earth. LEO satellites can bring Internet connectivity to places where it is still unavailable. This will also be a source of new demand for the space economy. Morgan Stanley, a bank, projects that the space industry will grow from $350 billion in 2016 to more than $1.1 trillion by 2040. New Internet satellites will account for half this increase.

For that to happen, however, three worries must be overcome. Debris (碎片) is the most familiar concern. As long ago as 1978, Donald Kessler, a scientist at NASA, proposed a scenario (设想) in which, when enough satellites were packed into low-Earth orbits, any collision could cause a chain reaction which would eventually destroy all spacecraft in its orbital plane. Solutions exist. One solution is to grab the satellites with problems and pull them down into the Earth’s atmosphere. Another is to monitor space more closely for debris. But technology is only part of the answer. Rules are needed to deal with old satellites safely from low-Earth orbits.

Cyber-security is a second, long-standing worry. Hackers could take control of a satellite and steal intellectual property, redirect data flows or cause a collision. The satellite industry has been slow to respond to such concerns. But as more of the world’s population comes to rely on space for access to the Internet, the need for action intensifies. Measures will surely be taken to protect network security.

The third issue follows from the first two. If a simple mistake or a cyber-attack can cause a chain reaction which wipes out hundreds of billions of dollars of investment, who is responsible for that? Now the plans of firms, wishing to operate large numbers of satellites are being studied. But there is a long way to go before the risks are well understood, let alone priced.

As space becomes more commercialized, mind-bending prospects open up: packages moved across the planet in minutes by rocket rather than by plane, equipment sent to other small planets, passengers launched into orbit and beyond. All that and more may come one day. But such activities would raise the same questions as LEO satellites do. They must be answered before the space economy can truly develop.

10 . Russia has announced that it is developing a specialized washing machine for astronauts to use in space. The announcement came from a missile, spaceship and space station manufacturer RKK.

Normal washing machines require gravity to function, not to mention significant amounts of water that has to be stored somewhere and increases weight — they are not suitable for space missions (任务). This means that astronauts cannot wash their clothes and either have to pack enough for their whole trip or rely on costly resupply missions and throw used items into space.

Crewmembers taking part in long-term missions on the International Space Station (ISS) often end up wearing the same garments for several continuous days and just change into new ones when they get dirty. Aside from this issue, wearing dirty clothes can be uncomfortable for the astronauts and could also provide perfect conditions for dangerous bacteria to grow and spread.

RKK has previously outlined plans for a space washing machine in a Russian space industry journal paper published in 2017. In the paper, the authors estimated (估计) that 1,450 pounds of clothes are surprisingly transported to the ISS every year to cover the requirements of just three astronauts. And this quantity could increase to three tons for a two-year voyage to Mars involving six crewmembers and could increase the costs and complexity of a mission.

The Russian scientists said that, instead of water, the washing machine would use the carbon dioxide produced by the astronauts’ breathing in the spaceship. Special technology would then turn the gas into a liquid under high pressure in order to clean the clothes.

The Russian designs are not the first proposals for a space washing machine. NASA has previously made a model of a low-power, low-water washing device (设备) which was designed to work in the microgravity of low-Earth orbit or that of the moon or Mars.