You may have already seen the headlines: Signs of life have reportedly been discovered on an alien world. A team of astronomers led by Nikku Madhusudhan of the University of Cambridge used the James Webb Space Telescope to search for interesting molecules in the atmosphere of a planet outside our solar system called K2 18b….
The carbon that once warmed Mars’ atmosphere has been locked in its rusty rocks for millennia. That’s the story revealed by a hidden cache of carbon-bearing minerals unearthed by NASA’s Curiosity rover along its route up a Martian mountain. The finding is the first evidence of a carbon cycle on the Red Planet, but also…
Clinical trials face uncertain futures amid Trump cuts
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…