houssem23 
The U.S. Centers for Disease Control and Prevention tightened rabies regulations for dogs coming into the country. The new regulations, which went into effect August 1, come as the temporary suspension of importing dogs from high-risk rabies areas instituted by the CDC in 2021 is lifted. What it boils down to is that there is … Read more
Jupiters signature feature its Great Red Spot might not be the same dark spot seen on the giant planet more than three centuries ago. From 1665 to 1713, astronomer Giovanni Domenico Cassini and others observed a dark oval nicknamed the Permanent Spot on Jupiter at the same latitude where the Great Red Spot now swirls. … Read more
Black holes cant be formed from pure light. Quantum physics would curb their creation under any foreseeable conditions, a new study suggests. Typically, matter is responsible for black holes. Theyre often formed when a stars core implodes at the end of its life. But matter isnt necessarily required to form a black hole. According to … Read more
An ancient Egyptian mummy, dubbed the Screaming Woman for what appears to be an open-mouthed look of pain or fear, might have had that expression fixed in place by a rare muscle reaction when she died. Sudden muscular stiffening associated with violent deaths under extreme physical and emotional stress, known as cadaveric spasm, could explain … Read more
In planet formation, as in poker, you have to play the hand youre dealt. If an Earthlike planet is the goal, the best starting hand might contain three to eight times all the water in Earths oceans. Theres kind of a sweet spot, says Keavin Moore, a planetary scientist at McGill University in Montreal. Less … Read more
Something strange is happening at Earths center. Decades of earthquake data show that Earths inner core has been rotating slower than its mantle and surface since around 2010, researchers report June 12 in Nature. The study appears to confirm a controversial finding from last year that the inner core may have reversed its rotation relative … Read more
Alzheimers disease is hard to diagnose. But proteins in the blood might provide clarity. A series of recent findings, presented at the annual Alzheimers Association International Conference in Philadelphia and in research papers, raise the possibility of a simple blood draw to help doctors figure out if a persons cognitive problems are caused by Alzheimers … Read more
The star marking true north is a good deal heavier than we thought. The North Star is 5.1 times as massive as the sun, astronomers report in work submitted July 12 to arXiv.org. That value, calculated from the motion of a much fainter star that orbits the luminary, is nearly 50 percent heavier than a … Read more
Nuclear power of the future is going to need fuel. That has governments, energy companies and nuclear engineers clamoring to get their hands on HALEU: high-assay low-enriched uranium. HALEU (pronounced like Hey, Lou) was previously a niche material, used mainly in nuclear reactors conducting scientific research. But now, multiple companies in the United States have … Read more
In A.D. 79, a massive volcano in southern Italy suddenly, explosively awoke, leading to one of the ancient worlds deadliest natural disasters. Ash and gas from the eruption killed at least 1,500 people in the ancient cities of Pompeii and Herculaneum. Now, a new analysis suggests that powerful earthquakes concurrent with the eruption may have … Read more