The United Nations and other international bodies have vastly overestimated China's greenhouse gas emissions over the last decade or more, according to a study released Wednesday.

In 2013, for example, China's total carbon emissions were 14 percent less than the figures used by the UN's panel of experts tasked with providing the scientific framework for global climate talks, the research showed.

The Smithsonian's first shot at online crowdfunding ended Wednesday after raising a hefty $719,779 to restore the spacesuit that Neil Armstrong wore when he walked on the moon.

A total of 9,477 people contributed to the month-long Kickstarter "Reboot the Suit" campaign, which surpassed its $500,000 goal on July 24.

Ultrasound tests on Mei Xiang, the female giant panda at the Smithsonian National Zoo in Washington, indicate she might be pregnant, officials said Wednesday.

Veterinarians detected what they think is a fetus which, at four centimeters (1.5 inches), suggests Mei Xiang could give birth next week or in early September.

An almost complete version of a tiny human brain has been grown in a U.S. lab in a move that could bring major strides to the treatment of neurological diseases, a scientist says.

Rene Anand, a professor at Ohio State University, has grown in a dish a brain equal in maturity to that of a five-week-old fetus, his university reported.

Scientists say they have found rare evidence of a prehistoric massacre in Europe after discovering a 7,000-year-old mass grave with skeletal remains from some of the continent's first farmers bearing terrible wounds.

Archaeologists who painstakingly examined the bones of some 26 men, women and children buried in the Stone Age grave site at Schoeneck-Kilianstaedten, near Frankfurt, say they found blunt force marks to the head, arrow wounds and deliberate efforts to smash at least half of the victims' shins — either to stop them from running away or as a grim message to survivors.

The U.S. lobster population has crashed to the lowest levels on record in southern New England region while climbing to heights never before seen in the cold waters off Maine and other northern reaches — a geographic shift that scientists attribute in large part to the warming of the ocean.

The trend is driving lobstermen in Connecticut and Rhode Island out of business, ending a centuries-old way of life.

A Japanese rocket is set to blast off later Wednesday, carrying emergency supplies and an unmanned cargo vessel bound for the International Space Station.

The H-IIB rocket is set to lift off from the southern island of Tanegashima at 8:50 pm (1150 GMT) after the launch was postponed twice due to weather conditions, the Japan Aerospace Exploration Agency (JAXA) said.

The federal government on Monday gave Royal Dutch Shell the final permit it needs to drill for oil in the Arctic Ocean off Alaska's northwest coast for the first time in more than two decades.

The Bureau of Safety and Environmental Enforcement announced that it approved the permit to drill below the ocean floor after the oil giant brought in a required piece of equipment to stop a possible well blowout.

Scientists say they have found rare evidence of a prehistoric massacre in Europe after discovering a 7,000-year-old mass grave with skeletal remains from some of the continent's first farmers bearing terrible wounds.

Archaeologists who painstakingly examined the bones of some 26 men, women and children buried in the Stone Age grave site at Schoeneck-Kilianstaedten, near Frankfurt, say they found blunt force marks to the head, arrow wounds and deliberate efforts to smash at least half of the victims' shins — either to stop them from running away or as a grim message to survivors.

An enigmatic ring of icy particles circling Saturn, herded into a narrow ribbon by two tiny moons, was probably born of a cosmic collision, according to a study published Monday.

The so-called F ring, some 140,000 kilometers (87,000 miles) beyond the sixth planet from the Sun, orbits at the border between Saturn's other rings and several moons.