The world pumped an estimated 39.8 billion tons (36.1 billion metric tons) of carbon dioxide into the air last year by burning coal, oil and gas. That is 778 million tons (706 metric tons) or 2.3 percent more than the previous year. Continue reading
The NASA Maven spacecraft is expected to complete a 10-month voyage to Mars on Sunday. Once in orbit, NASA scientists will gather information about the Red Planet’s atmosphere. Information that will hopefully offer clues about Earth’s climate and the future possibility of man landing on Mars. The NewsHour’s Miles O’Brien talks about the mission’s significance with Hari Sreenivasan. Continue reading
Large galaxies absorb smaller ones in order to survive in the universe, according to a new study recently published in the Monthly Notices of the Royal Astronomical Society. Continue reading
NASA announced this week that the agency would partner with the private sector to send astronauts to the International Space Station. The space agency awarded contracts to aerospace companies, Boeing and SpaceX. Together, they will send commercial crews into space … Continue reading
WASHINGTON — The Agriculture Department has approved the use of genetically modified corn and soybean seeds that are resistant to a popular weed killer. Continue reading
Vitamin A deficiency is a deadly threat to kids and pregnant mothers in the Third World. In the Philippines, the best nutrient sources are rarely part of the daily diet, so researchers have tried adding vitamin A to rice, a staple food. Science correspondent Miles O’Brien investigates the debate that’s grown up over the development of golden rice, a genetically modified crop. Continue reading
Forget blasting your defrosters and scraping windshields tirelessly in the wintertime — a new technology may help keep them ice-free.
Scientists are genetically modifying crops like rice to get vitamin A into impoverished diets in southeast Asia and sub-Saharan Africa. NewsHour explains why this vitamin is so important, where you can get it and why you shouldn’t eat polar bear liver. Continue reading