Andrea Mosie greeted me at the doorway to the moon with a wink. “Are you ready?” she asked. I had been warned about the technical procedures that would precede my visit, but I was not prepared for what I would see, and she knew it.Only a few hundred humans have ever been to space. Only a handful have ever walked on the moon. But there is one other way to experience that other realm, and it is through a doorway at NASA’s Johnson Space Center in Houston. I entered a boringly tan federal buil ...read more
The Neanderthals had a good run. They were around from at least 200,000 years ago to about 42,000 years ago, only a couple millennia after they began to interbreed with modern humans. After that window, all physical traces of them disappearedThroughout that period, though, Neanderthals would have certainly experienced some cold weather — so much that it’s unlikely they would have walked around completely naked. In fact, some research has shown that the temperatures were likely too cold in pa ...read more
With millions of cases per year in the United States, strep throat is an extremely common disease. You might recognize it from a distinctively unpleasant scratchy feeling in the throat, or as the source of many sick days from school for young children. But there’s still no vaccine for this bacterial infection, mainly because antibiotics can provide an effective treatment. With outbreaks of severe strep throat infections on the rise worldwide — particularly in countries with limited access t ...read more
Saturn has 146 confirmed moons– more than any other planet in the solar system – but one called Enceladus stands out. It appears to have the ingredients for life.From 2004 to 2017, Cassini– a joint mission between NASA, the European Space Agency and the Italian Space Agency – investigated Saturn, its rings and moons. Cassini delivered spectacular findings. Enceladus, only 313 miles (504 kilometers) in diameter, harbors a liquid water ocean beneath its icy crust that spans the entire moon ...read more
Concussions are a mild form of traumatic brain injury. 'Mild’ means that most patients make a complete recovery within a week or so. But some of the symptoms experienced in the immediate aftermath of a bang on the head can be disturbing. In addition to headaches, blurry vision, and nausea, some people experience brain fog and memory loss. What Happens to the Brain During a Concussion?When you get a blow to the head, on the soccer field or in a tumble from a bicycle, say, your brain can bang a ...read more