Earth has more than enough wind to power the entire world, at least technically, two new studies find.
Scientists have found three well preserved ancient insects frozen in amber _ and time _ in what is Earth's oldest bug trap.
Teens who routinely smoke marijuana risk a long-term drop in their IQ, a new study suggests.

Poison-tipped arrows and jewelry made of ostrich eggshell beads found in South Africa show modern culture may have emerged in the area about 30,000 years earlier than previously thought, according to two articles published Monday.
Poisoned-tipped arrows and jewelry made of ostrich egg beads found in South Africa show modern culture may have emerged about 30,000 years earlier in the area than previously thought, according to two articles published on Monday.

Rep. Ralph Hall represents the Fourth Congressional District of Texas, which straddles the Oklahoma and Arkansas borders northeast of Dallas. In more than six decades of public service, he also has been a county judge, a Texas state senator and a Navy pilot during World War II, when he served on an aircraft carrier in the Pacific. In 2004, Mr. Hall switched from the Democratic to the Republican Party, explaining, ''I'm not comfortable in the caucus with them running down a president [George W. Bush] that I've known since he was 11." He currently is chairman of the House Committee on Science, Space and Technology.

The controversial practice of hydraulic fracturing to extract natural gas does not pose a high risk for triggering earthquakes large enough to feel, but other types of energy-related drilling can make the ground noticeably shake, a major government science report concludes.

The Obama administration is financing research to devise a new gauge for measuring Americans' happiness. A National Academy of Sciences panel is analyzing proposals for surveying Americans' "subjective well-being." But there are grave perils in any "national happiness index" Uncle Sam might concoct.
The controversial practice of hydraulic fracturing to extract natural gas does not pose a high risk for triggering earthquakes large enough to feel, but other types of energy-related drilling can make the ground noticeably shake, a major government science report concludes.