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Supreme Court to Take Up Prop. 8, DOMA

It's been four years since California voters enacted a ban on same-sex marriage. Friday afternoon -- after years of legal twists and turns -- the U.S. Supreme Court agreed to take up the fundamental question: Does Prop. 8 violate the U.S. Constitution? The court also agreed to hear a related case involving the Defense of Marriage Act (DOMA).

• More: Read the transcript of Scott and Vik's conversation
• More: Supreme Court to Review Prop. 8, Defense of Marriage Act

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Are Self-Tracking Health Devices a Money-Maker? Silicon Valley Bets Yes

At the major retailers this holiday season, shelves are stocked with fitness devices that count calories, measure steps and even monitor how well you sleep. Just a few years back, these self-tracking devices were niche products for health nuts. But Silicon Valley is now betting that self-tracking will grow into a multi-billion dollar industry.

• More: How Much is Your Health Data Worth -- And Who's Buying It?

Polly Stryker/KQED

Testing Tech for the Future of Medical Care

To learn more about the new frontier of mobile health technology, we paid a visit to Kaiser's Garfield Innovation Center in Oakland. It's a large, industrial building where Kaiser tests everything from delivery cart robots to futuristic operating rooms. We took a tour with Dr. Yan Chow, head of innovation and advanced technology and part of an IT group whose job is to look into the future.

Mina Kim/KQED

Mobile Health Apps Under the Regulatory Microscope

The promise of mobile health sounds great. But as the applications become more sophisticated -- reading your heart rate or taking your blood sugar levels -- who's making sure everything is accurate and safe? Health Reporter Mina Kim explains how the Food and Drug Administration is taking a closer look at mobile health devices and apps.

Courtesy Steve Biggs

Cycling App Tracks Performance for All to See (and Beat)

We couldn't resist checking out a new health app ourselves. Strava measures your bike ride, uploads your time for specific routes and posts it online. Users can then connect and compete with one another to get the fastest time.