"This is the real deal. Voyager 1 has finally reached interstellar space; the first time a spacecraft has been in the space between the stars," says one project scientist. Launched in 1977, the probe has been surveying the solar system.
Investigative journalist Eric Schlosser explores the dilemma that has existed since the dawn of the nuclear age: How do you deploy weapons of mass destruction without being destroyed by them? He joins guest host Steve Roberts in studio to talk about his new book, "Command and Control: Nuclear Weapons, the Damascus Accident, and the Illusion of Safety."
Cut a tumor from a child's brain and you may save a life. But surgery can hurt the child if healthy brain cells are removed. A Seattle doctor is working on a substance that might help. It binds tightly to cancer cells and makes them glow, so they're easier to distinguish from healthy tissue.
People who lack special needs but simply want to keep their pets with them all the time can easily find fake "service animal" certifications on the Web. But those phony credentials can create problems for people with disabilities who legitimately need trained service dogs.
NASA's Lunar Atmosphere and Dust Environment Explorer is on its way to the Moon. It lifted off on time Friday night from NASA's Wallops Flight Facility in Virginia. Some early software problems have been successfully resolved.
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