For the first time, astronomers have confirmed the existence of a lone black hole — one with no star orbiting it. It’s “the only one so far,” says Kailash Sahu, an astronomer at the Space Telescope Science Institute in Baltimore. In 2022, Sahu and his colleagues discovered the dark object coursing through the constellation Sagittarius….
Two small clinical trials revive hope for an old idea: Cells injected into the brain might replace the nerve cells that die in Parkinson’s disease. The studies, published April 16 in Nature, represent early steps for stem cell therapies that aim to replace these dead cells in the brain — and stop Parkinson’s and the…
On the eve of Daylight Saving Time, I flew home to Vermont from California. Crossing several time zones, I arrived near midnight. At 2 a.m., the clock jumped ahead an hour, leaving me discombobulated. “How messed up am I?” I asked sleep researcher and evolutionary anthropologist David Samson days later. Jet lag can make people…
Imitation dark matter axions have arrived. They could reveal the real thing
Tech billionaires’ vision of an AI-dominated future is flawed — and dangerous
An old drug may find new use as a speedy treatment for venomous snakebites. The drug, called unithiol, has long been used as a therapy for heavy metal poisoning. Research in mice suggests the drug could block damaging proteins that are found in the venom of many vipers. A recent Phase I clinical trial explored…