Tuesday in Geneva, negotiators from six nations will sit down to talks with Iran over that country's nuclear program. At the heart of the negotiations are Iran's centrifuges: machines that can be used to enrich uranium for use in nuclear power plants, or for use in a bomb. This double role of centrifuges has negotiators in a bind.
Scientists who study why species vanish are increasingly looking for ancient DNA. They find it easily enough in the movies; remember the mosquito blood in Jurassic Park that contained dinosaur DNA from the bug's last bite? But in real life, scientists haven't turned up multi-million-year-old DNA in any useable form.
Fortunately, a team at the Smithsonian Institution has now found something unique in a 46-million-year-old, fossilized mosquito — not DNA, but the chemical remains of the insect's last bloody meal.
Originally published on Tue October 15, 2013 10:03 am
Somebody should be watching Daniela Rus and her pals at MIT, because what they are doing is so crazy, so potentially important, people need to know about them. Not because they're dangerous, but because what they're doing might be changing the world and nobody should change the world without the world noticing.
The scene: Two men in a chilly Soviet apartment converse in whispers, careful to protect their plans from enemy ears. Little do they know, the benign-looking raven outside their window is not merely a city scavenger hunting for food, but a spy for the U.S. government.