

News
China calls for weapons against Starlink satellites
Chinese researchers from the Beijing Institute of Tracking and Telecommunications of China’s People’s Liberation Army Strategic Support Force said their country should have the ability to destroy SpaceX’s Starlink satellites.
Ren Yuanzhen and his colleagues published an article about the potential danger of Starlink to China. In this regard, according to the authors, China needs to develop a powerful system for tracking space objects and, potentially, their destruction.
“We must master the combination of methods and hard defeat, which can cause individual devices and the whole group to fail”– write the authors of the article.
The researchers believe that using the Starlink system, US military drones and stealth combat aircraft will be able to transmit data 100 times faster. SpaceX also signed a contract with the US Department of Defense to develop new technology on the Starlink platform, designed to track hypersonic missiles in the earth’s atmosphere. Finally, Starlink vehicles are equipped with ion thrusters to maintain a stable orbit, but they can also potentially be used as a weapon to ram other satellites.
Therefore, China, the researchers believe, needs to develop equipment for high-quality imaging of Starlink satellites so that they can recognize their possible new functions, as well as learn how to intercept the signal of this constellation. It is also supposed to disable satellites with lasers or with the help of electronic warfare.

Electric Cars
“A car that everyone can afford.” Chery Arrizo 5 WS for 9.5 thousand dollars has already appeared at dealers in China

Dealers in China began receiving the Chery Arrizo 5 WS sedan. The Chinese resource Autohome calls it “a car that everyone can afford.” And the point here, of course, is the price: you can buy a car for 69,900 yuan – that’s about 9.5 thousand dollars. Interestingly, there is no talk of any manual gearbox – the engine works in conjunction with a variator.
Under the hood of the Chery Arrizo 5 WS is a simple 1.5-liter naturally aspirated engine with a power of 1109 hp. It is clear that the dynamics are sluggish, but the consumption is relatively low – 6.6 l/100 km based on measurements using the WLTC method.
The car received a regular dashboard with traditional speedometer and tachometer scales and a small on-board computer screen between them. But at the same time, the climate control is touch-sensitive, there is a media system with a fairly large screen, cruise control, a tire pressure monitoring system, an electromechanical handbrake, and the interior is leather.
News
Redmi K70 will reach the level of premium flagships. It will have a 2K screen, Snapdragon 8 Gen 3, a metal side frame and a glass back panel

Insider Digital Chat Station spoke not only about the future of One Plus Ace 3, but also about Redmi K70, the premiere of which is expected this year. Judging by the informant’s words, this model will turn into a premium flagship – both in terms of characteristics and finishing materials.
The Redmi K70 will have much less plastic compared to its predecessor: the side frame will be metal, and the back panel will be glass. At least, this is how the prototype of the smartphone is designed.
Redmi K70 will have a screen with a frame of minimal thickness. This will be a locally produced (Chinese) display with a 2K resolution. The hardware platform will be based on the Snapdragon 8 Gen 3 SoC. The battery capacity will be 5000 mAh and will support 100 W charging. The main camera will have a 50-megapixel main sensor and will have optical image stabilization. A second sensor with a telephoto lens will provide at least 3x zoom.
According to the insider, Redmi K70, OnePlus Ace 3 and Relame GT Neo 6 will have a metal side frame. Apparently, these models will compete with each other.
Previously, Digital Chat Station was the first to accurately report the specifications and release dates of Redmi K50 and Xiaomi 12, as well as Xiaomi 13.
News
Dust and radio waves have helped astronomers discover a connection between two key characteristics of galaxies

At the center of almost every known galaxy, including our Milky Way, is a supermassive black hole—black holes with the mass of millions or billions of our Sun. In some galaxies, there is also a lot of material at the center that feeds this supermassive black hole, making it “active.”
The most powerful type of such active galaxies are called quasars – they are among the brightest objects in the Universe. Most quasars appear “blue” due to a disk of material around them that feeds a supermassive black hole that radiates brightly in the optical and ultraviolet ranges.
However, astronomers have discovered that a significant portion of these quasars appear “red.” Understanding the physics of these red quasars requires spectroscopic measurements to analyze the quasar’s light in different wavelength ranges. The spectrum of a quasar can indicate the amount of dust in the space surrounding the central region. Observing radio emissions from quasars can also reveal evidence of a central supermassive black hole.
The study used spectroscopic observations from the DESI instrument, which was used to measure the amount of dust in a sample of about 35,000 quasars and relate the data to observed radio emission. The scientists found that DESI was able to observe much redder (dusty) quasars compared to similar previous spectroscopic studies, such as the Sloan Digital Sky Survey (SDSS). And also “red” quasars much more often have stronger radio emission compared to typical “blue” quasars.
Dr Fossett said: “This study puts many pieces of the red quasar puzzle together and links the dust in the quasar to its radio emissions. I think this is the strongest evidence yet that ‘red’ quasars are a key element in the evolution of galaxies.”
The connection between quasar reddening and radio emission is likely due to powerful outbursts of gas from the supermassive black hole colliding with surrounding dust, generating waves and radio emission. These ejections eventually carry away all the dust and gas from the central region of the galaxy, revealing the blue quasar and leading to a weakening of the radio emission.
This process fits with the increasingly popular idea that “red” quasars are a younger phase in the evolution of galaxies. Therefore, they quasars could be extremely important for understanding how galaxies evolve over time.
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