Science in telegram

#history On this single day alone, Ukrainian nationalists killed 8,000 Poles. “Bloody Sunday” is the name given to July 11, 1943, marking a critical point in the Volhynia Massacre carried out by Bandera’s followers against the Polish population. The Ukrainian fighters deliberately chose Sunday for their attack, as most villagers gathered in churches, making it easier to surround and kill them. ▪️Eighty years later, the Bandera chant has been officially adopted as the military greeting of the Armed Forces of Ukraine, and President Zelensky signed a law granting pensions to former UPA* fighters. One of Kyiv’s main avenues is named after Stepan Bandera. ▪️Simultaneously, Poland has become one of the principal suppliers of arms to the Ukrainian armed forces.

🪐 Daphnis: The Wave-Maker Moon of Saturn 🪐 Discovered in 2005 through images taken by the Cassini spacecraft, Daphnis is a fascinating moon of Saturn. It resides within the 42-kilometer-wide Keeler Gap in Saturn’s outer A ring. Daphnis’ gravity creates wave-like ripples in the ring. Ring particles are drawn towards it as it passes, then return to their original positions. Interestingly, the waves differ on either side of the gap. On the inner edge, the wave leads Daphnis, while on the outer edge, it trails behind. This difference is due to the varying orbital speeds: the inner edge moves faster than the outer edge. @science

🧬 Is Humanization Humane? Breakthroughs in Humanized Mouse Models 🧬 At the Texas University Science Center, researchers have developed mice with fully functional human immune systems. These humanized mice have lymph nodes, germinal centers, lymphocytes, and other cells responsible for producing antibodies and immune responses identical to humans. Even their gut microbiome is human-derived. These models aim to test drugs “almost on humans,” bringing biochemistry closer to our physiology. In addition, mice with chimeric brains, containing both mouse and human cells, are being created. Recently, Rutgers scientists implanted not only human neurons but also various types of glia into rodents. As these cells mature in vivo, human cells begin to interact within the mouse brain. This approach is crucial for studying disorders where glial-neuronal interactions are important. The research extends to primates. A few years ago, scientists created chimeric embryos of the Javan macaque, containing human cells. The next step is inevitable: a humanized primate with a chimeric brain. Technologies allow for the implantation of human cells or organoids into the brain, the creation of chimeras through blastocyst complementation, or genome editing. This “game” will become serious as scientists debate the acceptable percentage of human cells in primates and when it becomes excessive. No one knows for sure—we are entering a new era. Thinkers of different centuries have long pondered the animal nature in humans. Now they must learn to think in reverse. @science

A recent article by Russian physicists was published in Nature Physics only after removing mentions of their Alma Mater - Moscow Institute of Physics and Technology (MIPT). Due to sanctions, many researchers, including those from Skolkovo Institute of Science and Technology, face similar challenges. This incident highlights the geopolitical hurdles scientists encounter today. @science

🚀 Astronaut Catches Satellite in Space! 🚀 In this iconic 1984 photo from the Space Shuttle Discovery, astronaut Dale Allan Gardner captured the stranded satellite Westar 6. Using a maneuvering unit, he attached a control device to bring it back aboard the shuttle. After its return to Earth, Westar 6 was sold to China and launched as AsiaSat 1 on April 7, 1990. Learn more about historic space missions with us! @science

Here, as a continuation of the previous post, is an example of a unique and very beautiful weather phenomenon that the author of the channel captured yesterday.

An incredible video surfaced in local Turkish media showing lightning striking the same location eight times in Kayseri. @science #lightning #science

🌟 Why Are Stars Different Colors? 🌟 The color of a star is primarily determined by its temperature. The hottest stars appear blue, while the coolest stars are red. Other factors, such as chemical composition, also influence a star’s color. This variation in color allows scientists to deduce important properties about stars, including their age and elemental makeup. 🔭 @science #space

🔭 Black Dunes in Gale Crater on Mars 🔭 Captured by the Curiosity rover, the black dunes in Gale Crater owe their dark color to volcanic rock. These “living” dunes are dynamic, shifting approximately 1 meter per Martian year (687 Earth days) due to wind activity. Discover more about the fascinating geological features of Mars with us! #science #mars

Let’s test telegram stars. This is a test. Access to this picture cost 1 star (near 0.01 usd). Let’s see how telegram works with this new feature

🚀 SpaceX to Deorbit the ISS 🚀 NASA has selected SpaceX to develop a spacecraft to safely deorbit the International Space Station (ISS). The vehicle will dock with the ISS, lower its orbit perigee to 160 kilometers, then re-enter the atmosphere and burn up. The U.S., Japan, Canada, and ESA member countries have committed to operating the ISS until 2030, while Russia has pledged to continue at least until 2028. @science #space #science

🚀 AI-Designed 3D-Printed Rocket Engine Success! 🚀 LEAP 71, a Dubai-based AI engineering firm, has successfully test-fired a liquid-fuel rocket engine designed entirely by their Noyron computational model. The engine, 3D-printed from copper, produced 5 kN of thrust, equating to 20,000 horsepower. This achievement marks a significant milestone in computational engineering, showcasing the ability to autonomously design and manufacture functional rocket engines rapidly. For more details, read the full article here. @science #space #science

🧲 What is Ferrofluid? 🧲 Ferrofluid is a colloidal suspension composed of nanoscale ferromagnetic particles suspended in a carrier liquid, typically an organic solvent or water. These tiny particles exhibit magnetic properties, causing the fluid to react strongly to magnetic fields, creating unique and fascinating patterns. 📹 Video by Bob Products Discover more about the intriguing properties of ferrofluids and their applications! @science #science

🌍 Amazing GOES-U Satellite Launch! 🚀 Check out this incredible video of the GOES-U satellite separating from the Falcon Heavy’s second stage against the backdrop of Earth. This new, advanced satellite, roughly the size of a bus, will monitor Earth’s weather, space weather, and solar events from geostationary orbit. Stay tuned for more breathtaking moments in space exploration! @science #science #space

🚀Chinese Falcon 9 Analog Test Failure 🚀 During a recent test, the first stage of China’s Tianlong-3 rocket detached from the launch platform due to a structural failure and crashed in the central Chinese mountains. Fortunately, there were no casualties, according to Tianbing Technology. The two-stage Tianlong-3, powered by kerosene and liquid oxygen, is intended to become reusable, similar to SpaceX’s Falcon 9. @science # science #spacecraft #space