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When astronomers spotted Comet ISON in 2012, some christened it the "Comet of the Century." It initially failed to live up to the hype. But this month, ISON blazed brighter and sprouted several tails. Astronomers like Andrew Fraknoi are following the comet as it scrapes past the sun, where it could be destroyed--or emerge, even more spectacular than before.

Next year, the White House says, Americans won't have to start signing up until Nov. 15. The administration says that will give insurers more time to prepare their rates. It also starts the enrollment period after the 2014 elections.

Annie Dookhan has admitted she falsified drug tests. Tens of thousands of criminal cases may have been compromised. A judge sentenced her Friday to three to five years in prison.

Fans love to watch the drama on the football field. But scientists are watching the action in a different way. Guest host Celeste Headlee speaks with material scientist Ainissa Ramirez and journalist Allen St. John about their new book "Newton's Football: The Science Behind America's Game."

The Obama administration is shifting the start date of next year's sign-ups for health insurance from October to November. That gives insurance companies more time to prepare. But it also conveniently moves potential bad news about premium increases until after the midterm elections.

Democrats won Thursday when they rammed through a change in Senate rules to essentially kill the filibuster on most presidential nominations. At the time, Republicans said Democrats would be sorry, and soon.

The front-runner for the Heisman Trophy is now under investigation on sexual assault charges. Sportswriter Stefan Fatsis joins Robert Siegel to talk about this and other college football stories.

Cars in video games are becoming more and more realistic, but it's not just that games are trying to simulate the car world. Carmakers also want the gaming world's clientele.

The number of children diagnosed with attention deficit hyperactivity disorder has been rising since the 1990s. Now, the CDC reports that two-thirds of children with a current diagnosis are being medicated — a jump of 28 percent from 2007 to 2011.

With the invocation of the so-called "nuclear option," Senate Democrats moved to limit the power of the filibuster and dramatically change the nature of the institution. Many — on both sides — point to the maneuver as a sign of the system's failure. Writers Drew Toal and Kate Tuttle suggest books that might offer hope for us yet.