A Chinese government think tank is urging the country's leaders to start phasing out its one-child policy immediately and allow two children for every family by 2015, a daring proposal to do away with the unpopular policy.

Some demographers see the timeline put forward by the China Development Research Foundation as a bold move by the body close to the central leadership. Others warn that the gradual approach, if implemented, would still be insufficient to help correct the problems that China's strict birth limits have created.

Scientists say the Martian soil at the rover Curiosity's landing site contains minerals similar to what's found on Hawaii's Mauna Kea volcano.

The finding released Tuesday is the latest step in trying to better understand whether the environment could have been hospitable to microbial life.

Google is cramming a few more gadgets on to already crowded holiday shopping lists.

The devices announced Monday include the latest in Google's line of Nexus smartphones and a larger version of the 7-inch (17.78-centimeter) Nexus 7 tablet, which the company began selling in July. It's also adding cellular capabilities to the Nexus 7 and doubling the capacity of existing models.

Nokia says its Windows 8 phones will hit stores in Britain and France this week, before reaching Russia, Germany and other select markets in November.

The Lumia 920 and Lumia 820 are the ailing company's first handsets to use Microsoft's Windows 8 software, launched last week.

Authorities say a security guard at Tom Cruise's Beverly Hills, Calif., mansion used a stun gun on a trespasser who turned out to be an intoxicated neighbor who may have mistakenly entered the property.

Police say 41-year-old Jason Sullivan was shot with a Taser at about 9:30 p.m. Sunday at the home on Calle Vista Drive. He was then treated at a hospital and arrested on suspicion of trespassing.

Justin Bieber, Emma Stone, Tyra Banks and Josh Duhamel are honoring teenagers who give back to their communities.

Nickelodeon announced Tuesday that each star will pay tribute to a teen volunteer at the fourth annual TeenNick HALO Awards. It is presented to young people who are "helping and leading others."

When Linda Bugbee's husband suggested traveling to the South Pacific to see a total solar eclipse, she was more enthusiastic about the cruise and visiting Tahiti than she was about seeing a celestial phenomenon.

Seven years later, Linda and George Bugbee, who live in Virginia, are embarking on their fourth trip to see a solar eclipse — this time in Australia, in November — but they still consider themselves "newbies."

The storm called Sandy messily morphed from hurricane into hybrid storm, losing the hurricane part of its name, but not the weather mayhem surrounding it.

The National Hurricane Center officially pronounced the storm "post-tropical" Monday evening, as the center of Sandy perched 20 miles (32 kilometers) south of Atlantic City, knocking at the coast's door. The change is part of a transition into a more diffuse storm that is bigger and sloppier, even as its force weakened.

Two U.N. agencies have mapped the intersection of health and climate in an age of global warming, showing that there are spikes in meningitis when dust storms hit and outbreaks of dengue fever when hard rains come.

Officials said Monday that their "Atlas of Health and Climate" is meant to be a tool for leaders to use to get early warning of disease outbreaks.

American and international doctors will discuss the safest ages to play tackle football at the Consensus Conference on Concussion in Sport this week.

More than 100 medical experts from around the world, including leading U.S. doctors Stanley Herring and Robert Cantu, will take part Thursday and Friday.