Science, Spoken

Wild lands are practically worthless. They’re not worthless to the things that live in them, of course. They love ‘em. And they aren’t worthless aesthetically, if that’s your bag. Any place with plants slurps up carbon dioxide, providing a bulwark against climate change. Learn about your ad choices: dovetail.prx.org/ad-choices

People in the satellite industry are fond of automobile analogies. Like this one: Imagine that you buy a car and need it to run for 15 years, but you can’t change the oil or replace the alternator, let alone refuel it. That, they say, is the state of satellites. Once they’ve slipped the surly bonds of Earth, satellites pretty much just have to work, from the time they unfurl from their rocket fairing to the day they shut down for good. Learn about your ad choices: dovetail.prx.org/ad-choices

Give a man a fish, the old saying goes, and you feed him for a day—teach a man to fish, and you feed him for a lifetime. Same goes for robots, with the exception that robots feed exclusively on electricity. The problem is figuring out the best way to teach them. Typically, robots get fairly detailed coded instructions on how to manipulate a particular object. Learn about your ad choices: dovetail.prx.org/ad-choices

Amy Mitchell started getting sick in 2012. Dizzy spells and fatigue became a part of her daily life, followed by numbness in her limbs and painful muscle spasms. After half a dozen doctors over two years couldn’t tell her what was wrong, she sent away for a 23andMe kit. At the time, the consumer DNA-testing company was only giving ancestry reports—the Federal Drug Administration had recently shut down 23andMe’s health information ambitions. Learn about your ad choices: dovetail.prx.org/ad-choices

This weekend, a project of staggering ambition will sail past San Francisco and out to sea through the Golden Gate. The invention of an organization called the Ocean Cleanup, it consists of a 600-meter-long plastic tube with a dangling screen that a ship will tow 240 nautical miles out to sea for testing. Learn about your ad choices: dovetail.prx.org/ad-choices

In the early 2000s, a handful of young scientists at Stanford turned the university’s Palo Alto campus into the mouse-stitching-together capital of the world. Reviving a centuries-old procedure known as parabiosis, they connected the circulatory systems of dozens of pairs of rodents, young sutured to old, so that they’d pump one another’s blood back and forth. Learn about your ad choices: dovetail.prx.org/ad-choices

Hal the robot boy is convulsing. His head shakes back and forth so rapidly, it looks like he’s vibrating. His eyelids droop over his blue eyes and his mouth is ajar. He makes no sound, other than the faint whirs of his motors. Hal was built to suffer. He is a medical training robot, the sort of invention that emerges when one of the most stressful jobs on Earth tumbles into the uncanny valley. No longer must nurses train on lifeless mannequins. Hal can shed tears, bleed, and urinate. Learn about your ad choices: dovetail.prx.org/ad-choices

Luigi Catacuzzeno lines up a long, thin needle against a frog egg. Peering at it through a microscope, he turns the knob of a machine to nudge the needle a fraction of a micron forward. Then he deftly punctures the membrane of the soft little egg to wire it to a small capacitor, an electrical component similar to a battery. This unusual arrangement is Catacuzzeno’s attempt to harvest energy from biological cells to power tiny electronics. Learn about your ad choices: dovetail.prx.org/ad-choices

“The first mile is free,” Colorado’s governor, John Hickenlooper, says into a microphone. He’s smiling from a stage in Denver’s air and space museum, backed by a giant American flag that hangs near the bay doors of this repurposed military hangar. His audience has gathered to celebrate the FAA’s recent approval of a new Colorado spaceport, located a mile above sea level. They laugh at Hickenlooper's statement: They love this catchphrase. Learn about your ad choices: dovetail.prx.org/ad-choices

About ten years ago, British veterinarians discovered an unlucky family of King Charles Spaniels whose male pups sometimes came down with a mysterious set of maladies before their first birthday. They grew clumsy and weak, and they often choked on their own tongues. To blame was a mutation on their X chromosomes, in a gene that codes for a shock-absorbing muscle protein called dystrophin. Learn about your ad choices: dovetail.prx.org/ad-choices