By Environment Correspondent Alister Doyle OSLO (Reuters) – Scientists are sucking carbon dioxide from the air with giant fans and preparing to release chemicals from a balloon to dim the

By Tom Westbrook SYDNEY (Reuters) – Axeheads and grinding stones from a cave in Australia’s far north suggest humans arrived on the continent about 65,000 years ago, or 18,000 years

By Steve Gorman LOS ANGELES (Reuters) – A NASA spacecraft in orbit around Jupiter began transmitting data and images on Tuesday from humanity’s closest brush with the Great Red Spot,

By Natalie Thomas BEIJING (Reuters) – Sealed behind the steel doors of two bunkers in a Beijing suburb, university students are trying to find out how it feels to live

By Roberto Ramirez MEXICO CITY (Reuters) – A tower of human skulls unearthed beneath the heart of Mexico City has raised new questions about the culture of sacrifice in the

By Irene Klotz CAPE CANAVERAL, Fla. (Reuters) – The first total solar eclipse across the continental United States in a century is expected to spark watching parties and traffic jams

By Heekyong Yang, Jane Chung and Alister Doyle SEOUL/OSLO (Reuters) – The $10 billion Green Climate Fund that U.S. President Donald Trump said was a waste of tax dollars has

By Christoph Steitz and Tom Käckenhoff MUELHEIM-KAERLICH, Germany (Reuters) – As head of the Muelheim-Kaerlich nuclear reactor, Thomas Volmar spends his days plotting how to tear down his workplace. The

By Irene Klotz CAPE CANAVERAL, Fla. – Astronomers have found a new application for Albert Einstein’s century-old theory of relativity – using it to directly measure the size of a star

By Irene Klotz CAPE CANAVERAL, Fla. (Reuters) – NASA named 12 astronauts on Wednesday to the U.S. space agency’s first new class of space fliers in five years, chosen from