Researchers in the Great Lakes are trying to control an ancient fish, the sea lamprey. The species is notorious for latching onto other fish and literally sucking the life out of them. The lamprey larvae can be killed with a special poison, and now one biologist thinks he's found a way to make sure they're in the right place at the right time to die.
It used to be that if astronomers wanted to get rid of the blurring effects of the atmosphere, they had to put their telescopes in space. But a technology called adaptive optics has changed all that.
Adaptive optics systems use computers to analyze the light coming from a star, and then compensate for changes wrought by the atmosphere, using mirrors that can change their shapes up to 1,000 times per second. The result: To anyone on Earth peering through the telescope, the star looks like the single point of light it really is.