Science
Latest stories
U.S.: Planet Marks Hottest September Since 1880

Last month was the hottest September for globally averaged temperature over land and ocean surfaces since record-keeping began in 1880, the U.S. government said on Monday.

Not only did the month continue an ongoing trend of warming that has concerned scientists and environmentalists, it also marked the 38th consecutive September with a global temperature above the 20th century average, said the National Oceanic and Atmospheric Administration.

W140 Full Story
Restitution Ordered in Dinosaur Footprint Theft

A Utah man who pleaded guilty in the theft of a priceless fossilized dinosaur footprint that's never been recovered was sentenced Monday to a year of probation and ordered to pay $15,000 in restitution.

Jared Ehlers, 35, in February pried a piece of sandstone with an ancient three-toed dinosaur track from a trail for off-road vehicles near Moab in southeastern Utah, federal prosecutors say.

W140 Full Story
Climate Negotiators Urged to 'Build Bridges'

The U.N.'s climate chief urged country negotiators Monday to "build bridges" at talks in Bonn towards a new, global pact that received fresh endorsement from world leaders last month.

The six-day forum must lay the foundations for the annual round of ministerial-level U.N. talks to be held in Lima in December, Christiana Figueres told delegates as the meeting opened.

W140 Full Story
Sex? It all Started 385 Million Years Ago

It may not have been love as we know it, but around 385 million years ago, our very distant ancestors -- armored fish called placoderms -- developed the art of intercourse.

So suggest a team of evolutionary scientists, who point to the fossil of a placoderm species blessed with the name of Microbrachius dicki.

W140 Full Story
Comet Siding Spring Whizzes Past Mars

A comet the size of a small mountain whizzed past Mars on Sunday, dazzling space enthusiasts with the once-in-a-million-years encounter.

The comet, known as Siding Spring (C/2013 A1), made its closest encounter with Mars on Sunday at 2:27 pm (1827 GMT), racing past the Red Planet at a breakneck 126,000 miles (203,000 kilometers) per hour.

W140 Full Story
U.S. Military's Robot Space Plane Lands Back on Earth

A top secret U.S. robot space plane landed back on Earth on Friday after a 22-month orbit, officials said, although the craft's mission remains shrouded in mystery.

The unmanned X-37B, which looks like a miniature space shuttle, glided into the Vandenberg Air Force Base in California after having launched on December 11, 2012, on a mission that military officers say is still strictly secret.

W140 Full Story
Climate: Summit Rhetoric Faces Credibility Test

A month after world leaders pledged to curb the threat of climate change, their words will be put to the test when talks for a new global pact resume in Bonn next week.

Negotiators will gather from Monday, tasked with ironing out differences over how to save Earth from potentially catastrophic climate damage.

W140 Full Story
Argentina Launches its First Home-Built Satellite

Argentina launched its first domestically built communications satellite Thursday.

The ARSAT-1 satellite is the first to be constructed with local technology in Latin America. It was built by a crew of about 500 scientists over seven years at a cost of $250 million. The satellite was launched from a base in French Guiana and is to orbit 22,000 miles (36,000 kilometers) above Earth.

W140 Full Story
U.S. Astronauts Conduct Spacewalk to Repair ISS

A pair of American astronauts stepped outside the International Space Station Wednesday for a spacewalk to do repairs and upkeep at the orbiting outpost, NASA said.

Reid Wiseman and Barry "Butch" Wilmore finished their spacewalk after six hours and 34 minutes, right on schedule, the U.S. space agency said.

W140 Full Story
Rare Comet Fly-by of Mars on Sunday

A fast-moving comet is about to fly by Mars for a one-in-a-million-year encounter with the Red Planet, photographed and documented by a flurry of spacecraft, NASA said.

The comet, known as Siding Spring (C/2013 A1), has a core about a mile (1.6 kilometers) wide in diameter, but is only as solid as a pile of talcum powder.

W140 Full Story