As more and more exoplanets are discovered throughout the galaxy, scientists find some that defy explanation—at least for awhile. A new study, published in Nature, describes a process that might explain why a large portion of exoplanets have water on their surface, even when it doesn’t make sense.
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Why is it important to know about exoplanets having their atmospheres stripped while orbiting F-type stars? This is what a recent study submitted to The Astronomical Journal hopes to address as an international team of scientists conducted a first-time investigation into atmospheric escape on planets orbiting F-type stars, the latter of which are larger and hotter than our sun. Atmospheric escape occurs on planets orbiting extremely close to their stars, resulting in the extreme temperature and radiation from the host star slowly stripping away the planet’s atmosphere.
The crew for China’s next manned flight to its space station will include the country’s youngest astronaut to undertake a space mission, authorities said Thursday, as well as four lab mice.
Physicists at the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) in Hamburg have discovered a striking new form of quantum behavior. In star-shaped Kagome crystals—named after a traditional Japanese bamboo-basket woven pattern—electrons that usually act like a noisy crowd suddenly synchronize, forming a collective “song” that evolves with the crystal’s shape. The study, published in Nature, reveals that geometry itself can tune quantum coherence, opening new possibilities to develop materials where form defines function.
The path toward realizing practical quantum technologies begins with understanding the fundamental physics that govern quantum behavior—and how those phenomena can be harnessed in real materials.
As a kid, did you ever play that game Guess Who? If you haven’t, it’s actually kinda fun. You have two players, each with a board in front of them. On the board are a bunch of flip cards with different characters. You have to guess your opponent’s secret identity through a process of elimination. You ask if they’re a kid or an adult, or a boy or a girl, or if they’re wearing glasses or bald. If you ask the right questions, and eliminate the correct possibilities, you’re left with only one remaining option: your opponent’s secret identity.
Using NASA’s Swift spacecraft, an international team of astronomers have performed X-ray observations of a classical nova named Nova Scorpii 2023. Results of the observational campaign, published October 21 on the pre-print server arXiv, deliver important insights into the properties and behavior of this eruption.
Researchers have developed a new technology that can shape the spectrum of light emitted from a laser frequency comb across the visible and near-infrared wavelengths with more precision than previously possible. This advance could provide an important new tool in the hunt for Earth-like planets outside our solar system.
A research team led by Prof. Liu Xiaodi from the Hefei Institute of Physical Science of the Chinese Academy of Sciences, together with researchers from Jilin University and Sun Yat-sen University, has achieved simultaneous detection of zero electrical resistance and the Meissner effect in lanthanum nickelate (La3Ni2O7−δ) single crystals under high pressure.
One of the most fascinating histories in Mesoamerica belongs without a doubt, to the ancient Aztec people. The Aztecs (also called Mexica Culture) were a pre-Columbian civilization of the Mesoamerican region, which flourished between the 14th and 16th centuries AD, in the corresponding territory of Mexico. The Aztec spoke Nahuatl, and their culture developed in the cultural region of Mesoamerica from 1325 to 1521 AD, date of the conquest of Mexico by Spanish Conquistadores, commanded by Hernán Cortés, who defeated the Aztecs and destroyed their civilization.
The Aztecs reached a high degree of technological and cultural sophistication and were governed by an elective monarchy, organized into different social classes, such as nobles, priests, warriors, merchants, farmers, and slaves. In addition to their incredible agricultural, astronomical, and economic development, the ancient Aztecs are known for having a pictographic script and two calendars (astronomical and liturgical). The center of the Aztec empire was the city of Tenochtitlan located Mexico City. The functioning of the Aztec State was based on a wide bureaucratic network formed by professional officials, such as priests, trade inspectors, and tax collectors—the Tecuhtli. Like many other ancient cultures during the time, the ancient Aztecs too were polytheists (they worshiped several gods) and believed that if human blood was not offered to the Sun God, it would stop shinning and would go out plunging the world into darkness. Human sacrifices were offered to:
In the Aztec pantheon, there were many gods. The main ones were linked to the solar cycle and the agricultural activity. The most revered god was Quetzalcoatl, represented as a feathered serpent. According to the Spanish chroniclers, the bloodshed was offered from the hearts of animals and human beings in essential rites to satisfy their Gods. In addition to having been extensively developed in a number of scientific and social fields, Aztec Mythology is one of the richest folklore of the American Continent. Curiously, two of the most amazing structures built in Mesoamerica where the ancient City of Teotihuacan, and the Great Pyramid of Cholula.  The Great Pyramid of Cholula for example, happens to be the largest pyramid of the world.In size, this Pyramid is compared to NINE Olympic-sized swimming pools.Researchers have no idea who built this massive structure, but legends say it was erected by Giants. Specifically, the Quinametzin Giants.According to Aztec Mythology, the Quinametzin Giants not only built the Great Pyramid of Cholula, but they also erected one of the most amazing ancient cities in Central America, the Great City of Teotihuacan.If we take a look at In Aztec mythology, we will find that the Quinametzin Giants are believed to have populated the world during the previous era of the Sun of Rain (Nahui-Quiahuitl). As written in the book El Mundo Mágico de los Dioses del Anáhuac authored by Otilia Meza, a Quinametzin Giant stood more than 10 feet tall with a weight of around 600 pounds. As many other mythologies around the globe that mention the existence of giants, the Quinametzin too were by the gods because they did not venerate them, and their peak-civilization came to an end as a result of great calamities and as a punishment from the heavens for grave sins they had committed. The Quinametzin Giants: Cuauhtemoc, one of four giants who supported the sky at the beginning of the Fifth Sun. Izcoalt, one of four giants who supported the sky at the beginning of the Fifth Sun. Izcaqlli, one of four giants who supported the sky at the beginning of the Fifth Sun. Tenexuche, one of four giants who supported the sky at the beginning of the Fifth Sun. Xelhua, a giant founder of Cuauquechollan, Itzocan, Epatlan, Teopantlan, Tehuacan, Cuzcatlan and Teotitlan, this giant built the Great Pyramid of Cholula. Tenoch, a giant founder of Tenochtitlan. Ulmecatl, a giant founder of Cuetlachcoapan, Tontonihuacan, Huitzilapan. Mixtecatl, a giant founder of Mixteca. Xicalancatl, a giant founder of Xicallancatl. Otomitl, a giant founder of Xilotepec, Tollan, Otompan. Using NASA’s Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers have detected a new exoplanet orbiting a bright K-type star known as TOI-283. The newfound alien world, which received the designation TOI-283 b, is about 40% smaller than Neptune. The discovery was detailed in a research paper published October 16 on the pre-print server arXiv.
Every year, the Taurid meteor shower lights up the night sky from late October through early November. Sometimes called the “Halloween fireballs,” they are named for the constellation Taurus—the bull—from which the meteors appear to radiate. The shower is best viewed from dark-sky locations.
Scientists have long sought to make semiconductors—vital components in computer chips and solar cells—that are also superconducting, thereby enhancing their speed and energy efficiency and enabling new quantum technologies. However, achieving superconductivity in semiconductor materials such as silicon and germanium has proved challenging due to difficulty in maintaining an optimal atomic structure with the desired conduction behavior.
China said Thursday it’s on track to land astronauts on the moon by 2030 as it introduced the next crew of astronauts who will head to its space station as part of the country’s ambitious plans to be a leader in space exploration.
Our moon—or la Luna—has inspired humankind for millennia.
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