Mysterious high-energy particles could come from black hole jets

A trio of mysterious high-energy particles could all have the same source: active black holes embedded in galaxy clusters, researchers suggest January 22 in Nature Physics. Scientists have been unable to figure out the origins of the three types of particles — gamma rays that give a background glow to the …

For the first time, China has overtaken the United States in terms of the total number of science publications, according to statistics compiled by the US National ScienceFoundation (NSF). The agency’s report, released on 18 January, documents the United States’ increasing competition from China and …

DEEP DISCOVERY A scuba diver photographs the bottom of a submerged, underground pit where many animal fossils, including a teenage girl’s remains, were found in 2007. A TV documentary shows how these discoveries led to insights into the initial settling of the Americas. Alberto Nava. Email. Email.

For the first time ever, China is now publishing more scientific articles than the United States, firmly staking its claim to being the world leader in research and development (R&D). This overshadowing has been a long time coming. The statistics formed part of the US National Science Foundation’s (NSF) …

After a year of President Trump, scientists in the United States are doing their best in difficult circumstances, and Nature applauds them for it. It’s increasingly clear that Trump has been just as bad for many aspects of science as we and others feared. Most crucially, the role of science and scientific advice in …

Scientists in the United States are bracing for impact after lawmakers in Congress failed to agree on a plan to fund the government, triggering its indefinite shutdown on 20 January. As a result of the impasse, thousands of federal researchers have been ordered to stay at home, barred from accessing their …

Scientists hope to narrow down estimates of when and how people expanded into the region beginning around 15,000 years ago, and to clarify the timing and routes of subsequent migrations. The work might also help to explain the genetic diversity seen in today’s Native American populations.

The latest study, published on 18 January in Science, is unusual in that it tests not only for these DNA mutations, but also for aberrant levels of certain proteins, in an effort to detect eight different cancers. The test was able to detect disease in about 70% of more than 1,000 people who had already been diagnosed with …

She expressed frustration at media reports that questioned her work. “I’m so past trying to defend myself in these types of articles,” she said. “To me, there isn’t anything much worse than distorting science for an agenda, when the ultimate impact falls on these women who spend years and years suffering.”.