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China’s Chang’e 5 lunar lander just marked a historic first: The spacecraft became the first to detect water on the moon at its landing site in real time. Chang’e 5 found water at its landing site near Oceanus Procellarum on the moon’s near side, using an instrument that detects water by determining spectral reflectance measurements … Read more
An infusion of the widely-used anesthetic ketamine could represent “new hope” in the treatment of millions of people with alcohol problems, scientists studying the drug said. People with severe alcohol problems who were given ketamine infusions alongside psychological therapy quit drinking for longer than those who received a standard treatment for alcoholism, according to the … Read more
Because they emit nothing we can detect, there are many things about black holes we simply do not know. Amongst the most perplexing are supermassive black holes, millions to billions of times the mass of our Sun. Since black holes form from the cores of massive dead individual stars, how do supermassive behemoths grow so … Read more
A treasure trove of some 200 Roman-era coins was discovered in northwestern Spain thanks to the apparent efforts of a hungry badger hunting for food, archaeologists have said. Described as “an exceptional find”, the coins were discovered in April 2021 in La Cuesta cave in Bercio in the Asturias region, with details outlined in the … Read more
Rapid COVID-19 tests that use nose swabs alone might not pick up Omicron in the early days of infection, a new study suggests – but experts don’t agree on whether you should also swab your throat. A small study from a group of US researchers, published Tuesday, found that rapid tests with nasal swabs didn’t detect Omicron … Read more
One night in September 2021, Fatema Samim’s fate hung in the balance. A civil engineer from Herat, in western Afghanistan, she had been on the run from the Taliban for a month and was holed up with her husband and two young sons in Mazar-i-Sharif. Charter flights were whisking Afghans with U.S. ties to safety, … Read more
By Abigail Beall NASA/CXC/SAO/P. Plucinsky et al. THE first week of the new year brings us a new moon, and the perfect time to hunt for the fainter objects in the night sky. I will be looking to spot a galaxy called Triangulum, or M33, which can be seen from anywhere in the world with … Read more
Imaginary numbers are necessary to accurately describe reality, two new studies have suggested. Imaginary numbers are what you get when you take the square root of a negative number, and they have long been used in the most important equations of quantum mechanics, the branch of physics that describes the world of the very small. … Read more
Astronomers have discovered dozens of new “rogue” planets, roughly doubling the known number of these mysterious free-roaming worlds. A team of researchers found a collection of at least 70 exoplanets without parent stars — the largest single group of rogue planets ever found — in a patch of space about 420 light-years from Earth, a … Read more
Archaeologists have linked rising and lowering sea levels in the Atlantic Ocean to the ebbs and flows of ancient civilizations in southern Brazil. The findings, which incorporate several lines of past archaeological evidence, suggest even large, resilient, and cooperative coastal communities can easily go out with the tide. When analyzing and dating a series … Read more