There are more than a thousand species of sharks and rays in the world, and nearly a quarter of them are threatened with extinction, according to a new study. That means these ancient types of fish are among the most endangered animals in the world.
The European Space Agency's Rosetta mission is back in business. For the past 31 months, the spacecraft has effectively been asleep. Most of its instruments were shut off to save energy, including the radio for communicating with Earth. Mission managers can now start preparing Rosetta for a rendezvous with a comet later this year. NPR's Joe Palca has more.
Originally published on Tue January 21, 2014 6:55 pm
If you've ever shopped at Whole Foods, you've probably noticed that some of the foods it sells claim all kinds of health and environmental virtues. From its lengthy list of unacceptable ingredients for food to its strict rules for how seafood is caught and meat is raised, the company sets a pretty high bar for what is permitted on its coveted shelves.
Originally published on Tue January 21, 2014 3:49 pm
By Adam Frank
In his 2004 book Cloud Atlas, novelist David Mitchell imagines Nea So Copros, a dystopian future version of Seoul, Korea, in which consumer culture has become its own form of totalitarianism. It's a world where brands and logos become their own form of political power.
You drop a ball. You drop a key. You drop a piece of lead. They each slip from your hand and tumble to the ground. But you have an orderly mind (you're a physicist) and, to you, falling things don't seem haphazard — they seem neat. The unruly world has rules, laws. So instead of saying "Bummer!" you say, "Of course! How beautiful! How logical!"
Scientists are celebrating after receiving a signal from a spacecraft on a very long journey. The Rosetta is traveling through the heavens to study a comet in more detail than ever before. As NPR's Rob Stein reports, the Rosetta spacecraft's call home meant the robot onboard had successfully awakened itself from a long hibernation, and is now on course to achieve its historic mission.
New commercial devices, using technology borrowed from the field of neuroscience, are making it possible to control objects with brain power alone. The idea is to help train users to become more focused — and relaxed.
EEG headsets, which detect electrical activity in the brain, were once found only in research labs. Today, the technology has become cheaper and easier to use. That's made it possible to connect EEG headsets to other consumer devices.
... That's the message received from a bleary-eyed comet-chasing space probe on Monday, much to the relief of ground-based controllers who sent it a long distance wake-up call after nearly a three-year nap.
The European Space Agency received the communique from deep space on schedule at 1 p.m. ET from Rosetta, some 500 million miles away on a trajectory to rendezvous with comet 67P/Churyumov-Gerasimenko in August. It's been in sleep mode to conserve power.
The United States and European Union say they will lift some sanctions against Iran after reports from international inspectors that Tehran has suspended high-level enrichment of uranium under an interim pact to scale back its nuclear program.