There appear to be two separate arms originating from the same general location at the crust-mantle boundary. One branch slopes northeast to feed the Yellowstone caldera, while a second branches off toward the Snake River Plain. The branches split in a way that the volcano-free zone between the two features results. The researchers reasoned that, ..
Tag : Science
Mixing corn starch and water in appropriate amounts produces a slurry that is liquid when stirred slowly but hardens when you punch it—a substance colorfully dubbed “oobleck.” (The name derives from a 1949 Dr. Seuss children’s book, Bartholomew and the Oobleck.) High-speed imaging and force measurements have revealed another surprising property of oobleck drops hitting ..
Finding a radula, the chitinous, toothed, conveyor-belt-like tongue used by mollusks to scrape food, was the definitive proof that Pohlsepia was indeed a mollusk. A more precise answer came in the form of the teeth. The synchrotron scan was sharp enough to let researchers count the tiny, individual tooth impressions across the radula’s transverse rows. ..
NASA’s schedule currently puts the launch of Artemis III in 2027 and Artemis IV in 2028. Kshatriya said he was confident that NASA, working with the European Space Agency and Airbus, which builds the service module, will be able to fix the valve problem in time for Artemis IV. Manufacturing of the Artemis IV service ..
Almost as soon as researchers started exploring the capabilities of the CRISPR/Cas9 system, they recognized its potential use in targeted gene editing. But the intervening decades have seen slow progress as people worked to determine how to do so in a way that would be safe for use in humans. It was only a little ..
Even those factors might not have been sufficient, but the authors also identified three possible catalysts. In 2014, five adult males and one adult female died of unknown causes, although several had shown signs of illness. Those losses likely disrupted the social network by weakening social ties across clusters. There was also a new alpha ..
“We have loved living in Orion,” said Christina Koch, mission specialist on Artemis II. “In fact, we’ve all said that sometimes you can forget where you really are, because we’re in this small space that just gives us everything we need.” Living in microgravity makes the cramped quarters seem a little more accommodating. The astronauts ..
If the star is sufficiently massive, this will cause the near-instantaneous onset of oxygen fusion, releasing a massive burst of energy. That energy is thought to be enough to completely destroy the star without leaving a remnant black hole behind. Alternatively, smaller bursts of oxygen fusion may blast away the star’s outer layers, leaving a ..
Fälth noted that proponents of reform believe that “basic skills—especially reading, writing, and numeracy—must be firmly established first, and that physical textbooks are often better suited for that purpose.” Between 2000 and 2012, Swedish students’ scores on standardized tests steadily declined in reading, math, and science. Though they recovered ground between 2012 and 2018, those ..
KENNEDY SPACE CENTER, Florida—Launching to the Moon is an all-day undertaking, something the four astronauts waiting to climb aboard NASA’s Artemis II rocket know well. “It is actually a very long day,” said Victor Glover, the pilot on Artemis II. “We wake up about eight hours before launch, and there’s a pretty tight schedule of ..
