Lunar back sampling, intelligent rockets... 2024 China Space "Spoiler" | Expo Daily

2024 China Space Program Spoilers

On February 26, China Aerospace Science and Technology Corporation released the Blue Book of China's Space Science and Technology Activities (2023) (hereinafter referred to as the Blue Book), which introduces the overall situation of space missions in 2024. The Expo will give you a "spoiler"!

It is expected that about 100 launch missions will be carried out. The China Aerospace Science and Technology Corporation plans to arrange nearly 70 space launch missions, launch more than 290 spacecraft, and implement a series of major engineering tasks such as "Chang'e 6".

The world's first sampling and return of samples from the far side of the moon will be realized. The fourth phase of the lunar exploration project will be promoted, and the Queqiao-2 relay satellite and Chang'e-6 probe will be launched. my country will realize the first human sampling and return of samples from the "far side of the moon" in the Aitken Basin in Antarctica.

The space station has entered a normal operation mode. It will complete two cargo spacecraft, two manned spacecraft launch missions and two return missions. The Long March 2F carrier rocket will send the Shenzhou 18 and Shenzhou 19 manned spacecraft to the space station in April and October.

Two new rockets will complete their maiden flights. The Long March 6C and Long March 12 are expected to complete their maiden flights this year. The development of intelligent launch vehicles is accelerating. In accordance with the requirements of high reliability of space launch missions, based on existing technologies, intelligent rocket design is carried out to assist fault diagnosis and fault-tolerant reconstruction technology.

Satellite Internet is gaining popularity. More consumer-grade satellite Internet products will be provided to the market. United Airlines will launch aviation satellite Internet product data packages, allowing passengers to enjoy smooth Internet speeds equivalent to 4G in the sky. Commercial launch business is booming. **my country's first commercial space launch site will usher in its first launch mission.

The commercial remote sensing satellite system is being steadily built. The "new generation of commercial remote sensing satellite system" will be dedicated to all walks of life, establish a cross-industry and cross-regional remote sensing resource application service system, and expand the field of remote sensing application in the industry.

Several civilian satellites have been launched one after another. It is planned to launch an ocean salinity detection satellite to enable China to have high-resolution and high-precision ocean salinity detection capabilities. In addition, several civilian satellites such as the electromagnetic monitoring satellite 02, the Sino-French astronomical satellite, and the Shijian 19 will be launched to meet the application needs of users in various industries.

Chinese scientists discovered for the first time the origin of cosmic rays exceeding 100 million electron volts

Where do high-energy cosmic rays come from? This is a century-old mystery. Recently, new discoveries from my country's high-altitude cosmic ray observatory "LHAASO" have brought us one step closer to solving this mystery.

Using the observation data of "Lazo", Chinese researchers discovered a giant ultra-high-energy gamma-ray bubble structure in the star forming region of Cygnus, and for the first time in the world found the origin of cosmic rays with energies higher than 100 trillion electron volts.

Cosmic rays are high-energy charged particles in space, mainly composed of protons and atomic nuclei of various elements, carrying important information about the origin of the universe, the evolution of celestial bodies, etc. The ultra-high-energy gamma-ray bubble structure discovered this time contains multiple gamma photons with energies exceeding 100 trillion electron volts, and the highest energy reaches 200 trillion electron volts.

The massive star cluster near the center of the bubble structure is considered to be the origin of high-energy cosmic rays. This star cluster is composed of stars with extremely high surface temperatures. The strong radiation pressure and stellar winds collide with the interstellar medium to create an extreme environment, becoming a particle accelerator.

As the observation time of Lasso increases, it is expected to detect more sources of high-energy cosmic rays acceleration, further revealing the mystery of the origin of cosmic rays in the Milky Way. This discovery marks an important step forward in the exploration of the extreme physics of the universe.

The anti-counterfeiting artifact is here! Just tag it

Imagine that your sports shoes, cosmetics, and even medical devices can have a unique "ID card"! This is not science fiction, but a new technology brought by scientists at MIT~

They have developed a tamper-proof ID tag that uses terahertz wave technology to "fingerprint" items. This is not just a tag, it is a small, cheap and secure anti-counterfeiting artifact.

The tags contain tiny metal particles that, when illuminated by terahertz waves, reveal a unique pattern. Just like everyone's fingerprints, the pattern is unique to each item, which means that even if someone wants to imitate it, it is almost impossible.

The new label design contains micro-grooves that allow terahertz waves to penetrate and hit the metal particles in the glue, cleverly utilizing the penetrating power of terahertz waves and making it easy to detect without complex peripherals. Scientists also used machine learning to train a model to learn to recognize these patterns with an accuracy rate of over 99%!

This is great news for items that are too small to be covered by traditional RFID tags, such as micro medical devices. Moreover, its production cost is extremely low, which indicates that supply chain management will become more efficient and secure in the future.

Imagine that in the future, every item we buy can be easily verified for authenticity through this smart label. This not only protects consumers, but also combats the counterfeit market.

Collection, teach you how to make a heart "surging with love"

Some people think of chemistry as color change, and indeed, a large part of chemistry experiments are color change. But among color change, scientists have also found some unique experiments.

Let chemistry become romantic! Come, today I will teach you how to make a heart full of love.

We need to add a solution into the culture dish, and then put in a "heart" made of wire, and you will see the phenomenon in the video.

The same two things will change color when mixed together. This is the effect achieved by the reaction between the things peeled off from the iron and the solution, so a "heart surging with love" appears. (Hydrochloric acid oxidizes iron with the help of hydrogen peroxide, and potassium thiocyanate is used as a color developer)

Of course, you can also make the "heart" shape into other shapes, as long as it is made of iron.

The content is compiled from China Science Popularization Expo Weibo, Guozi Xiaoxin, Science and Technology Daily, and Gezhi Lundao Forum

This article was first published on China Science Expo (kepubolan). Please indicate the source of the public account for reprinting