Rae Ellen Bichell

Rae Ellen Bichell is a reporter for NPR's Science Desk. She first came to NPR in 2013 as a Kroc fellow and has since reported Web and radio stories on biomedical research, global health, and basic science. She won a 2016 Michael E. DeBakey Journalism Award from the Foundation for Biomedical Research. After graduating from Yale University, she spent two years in Helsinki, Finland, as a freelance reporter and Fulbright grantee.

In 2010, Sonia Vallabh watched her mom, Kamni Vallabh, die in a really horrible way.

First, her mom's memory started to go, then she lost the ability to reason. Sonia says it was like watching someone get unplugged from the world. By the end, it was as if she was stuck between being awake and asleep. She was confused and uncomfortable all the time.

"Even when awake, was she fully or was she really? And when asleep, was she really asleep?" says Sonia.

Sonia Vallabh saw her mother die at age 52 from a rare disease that causes irreversible brain damage. Then Sonia learned she has inherited the genetic mutation that killed her mother. She and her husband quit their jobs and trained to become scientists. They're now racing against time to come up with a treatment that could save Sonia's life.

It's a mission that's been in the works for nearly 60 years. NASA says it will launch a spacecraft in 2018 to "touch the sun," sending it closer to the star's surface than ever before.

The spacecraft is small – its instruments would fit into a refrigerator — but it's built to withstand temperatures of more than 2,000 degrees Fahrenheit, all the while maintaining room temperature inside the probe.

Animals, especially mammals, need oxygen to keep their bodies and brains humming along.

But leave it to the African naked mole-rat to buck that trend. The rodents are bizarre in just about every way. They're hairless, ground-dwelling and cold-blooded despite being mammals. Now, scientists report in the journal Science that the animals are capable of surviving oxygen deprivation.

Decades ago, scientists surgically attached pairs of rats to each other and noticed that old rats tended to live longer if they shared a bloodstream with young rats.

It was the beginning of a peculiar and ambitious scientific endeavor to understand how certain materials from young bodies, when transplanted into older ones, can sometimes improve or rejuvenate them.

Researchers have found that European eels can sense magnetic fields and may use this ability to navigate thousands of miles through the Atlantic Ocean.

Eels have always been mysterious animals. More than 2,000 years ago, Artistotle proposed that they were born spontaneously from mud.

"I think it's fascinating because as humans we've been pondering the life history of eels for a long time," says Lewis Naisbett-Jones, a graduate student in marine biology at the University of North Carolina, Chapel Hill.

Viruses are supposed to be tiny and simple — so tiny and simple that it's debatable whether they're even alive.

They're minimalist packets of genetic information, relying entirely on the cells the infect in order to survive and reproduce.

But in 2003, researchers identified a new kind of virus that that turned scientific understanding of viruses upside down, and tested the boundary of what can be considered life.

Exposure to lead as a child can affect an adult decades later, according to a study out Tuesday that suggests a link between early childhood lead exposure and a dip in a person's later cognitive ability and socioeconomic status.

Lead in the United States can come from lots of sources: old, peeling paint; contaminated soil; or water that's passed through lead pipes. Before policies were enacted to get rid of lead in gasoline, it could even come from particles in the fumes that leave car tailpipes.

There is such a thing as a memory athlete. These are people who can memorize a truly insane amount of information really quickly, like the order of playing cards in a deck in under 20 seconds, or 200 new names and faces in a matter of minutes.

Neuroscientists writing Wednesday in the journal Neuron found these champs of memorization aren't that different from the rest of us.

When you step outside after a big rainstorm and take a deep whiff of that fresh, earthy smell, you're mostly smelling a chemical called geosmin.

It's a byproduct of bacteria and fungi. And something about rain lofts the chemical — and sometimes the organisms themselves — into the air, a process that not only helps release that earthy smell but may, in very rare conditions, spread diseases.

Somehow raindrops launch tiny living things off the ground.

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