Developing countries must lead on solar geoengineering research

The emissions cuts agreed in Paris are not enough — they will take the world to a 3 °C rise (see go.nature.com/2u3ybkh). Adaptation is therefore essential. As the scale of the damage grows, more countries will turn to the “loss and damage” provisions in the Paris agreement. And these are vague: who …

Filling the shoes of NASA’s Kepler spacecraft won’t be easy. Since its launch in 2009, Kepler has discovered nearly three-quarters of the 3,700-plus known exoplanets. And there are thousands more candidates waiting to be confirmed. So NASA is taking a different approach with its next planet-hunting …

Another of Hawking’s former students at Cambridge, theoretical physicist Raphael Bousso, told Nature that his teacher was a brilliant physicist who also excelled at communicating science to the public. “These are two distinct skills. Stephen excelled at both.” Bousso, now at the University of California, …

“We really go to great lengths to keep natural infectious experience out of the mouse house,” says David Masopust, an immunologist at the University of Minnesota who heads the lab where Pierson works. Those efforts have paid off: with the confounding effects of pathogens controlled, mouse experiments …

The Bell Beaker ‘bombshell’ study appeared in Nature in February and included 230 more samples, to make it the largest ancient-genome study on record. …. None of these facts negates the conclusions of the genetics papers, but they underscore the insufficiency of the articles in addressing the questions …

Fake news spreads faster and more widely than true news, according to a study examining how 126,000 news items circulated among 3 million Twitter users. “This is the most comprehensive descriptive account of true and false information spreading on social media that we have to date”, says Dean Eckles …

The mirrors of the James Webb Space Telescope are designed to peer at the Universe’s first stars. Credit: Desiree Stover/NASA. NASA will delay the launch of its ambitious James Webb Space Telescope (JWST) by nearly a year, until approximately May 2020. That is likely to push the cost of the mission …

The tool, described in Nature on 28 March, is not the first software to wield artificial intelligence (AI) instead of human skill and intuition. Yet chemists hail the development as a milestone, saying that it could speed up the process of drug discovery and make organic chemistry more efficient. “What we have …

Nearly 20% of publicly funded cancer clinical trials in the United States fail because investigators are unable to enrol enough participants. Yet patients and their physicians often grow frustrated when they encounter the sometimes insurmountable requirements to join a study. Now, researchers are pruning …

The site’s keeper corresponded with Nature by e-mail and declined to provide any further details of their identity, citing fear of harassment. Since 2010, Beall, an academic librarian at the University of Colorado Denver, listed thousands of open-access journals and publishers that he said deceived authors …