Barack Obama's article in the top academic journal, Science, argues that the clean-energy revolution is irreversible and highlights the economic benefits of cutting carbon emissions and investing in renewable energy.
Some people say they remember Nelson Mandela dying in prison in the 1980s, years before he became South Africa’s president. A neuroscientist steps in to discuss the science behind real — and false — memories.
Whoever wins the US presidency on Nov. 8 will be tasked with managing America's increasingly tense relationship with Russia. And that means managing the future of a decades-long and complicated nuclear relationship with Russia — and with the world.
Black holes may be exotic, but they are hardly rare. Every galaxy has one, including ours. But it's tough to look at and study black holes since their gravitational pull is so powerful light can't escape from them. But thanks to a new telescope that captures high-energy x-rays, NASA scientists are peering at their edges, confirming Einstein's theories, and may have gotten the first glimpse of a new kind of black hole.
Young people will need to understand climate change to make informed decisions in the future. But in many school districts in the US, students receive little or no scientific information about it. Teachers who do try to bring climate science into the classroom can find themselves in trouble.