Researchers prepare to take down a section of a sod house in Gates, Neb., in order to study the bricks made of dirt.
Credit Jackie Sojicko / Harvest Public Media
Ecologists in Nebraska are trying to find out what the Great Plains looked like when homesteaders settled there in the 19th century. To do that, they’re working with a team of archaeologists and historians dissecting a sod house, a house built out of bricks cut from dirt.
This week, scientists at the Smithsonian's National Museum of Natural History will start unpacking some rare and precious cargo. It's something the Smithsonian has never had before — a nearly complete skeleton of a Tyrannosaurus rex.
NASA is hoping to soon venture out farther into space than ever before. But these long journeys mean astronauts could face greater risks to their physical and mental health than the space agency currently allows.
Now, an independent group of experts convened by the Institute of Medicine, the health arm of the National Academy of Sciences, has weighed in on how NASA should make decisions about the kinds of risks that are acceptable for missions that venture outside low Earth orbit or extend beyond 30 days.