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Astronomers have detected the most-powerful, most-distant and most-perplexing collision of black holes yet, using gravitational waves. Of the two behemoths that fused when the Universe was half its current age, at least one — weighing 85 times as much as the Sun — has a mass that was thought to be too large to be involved in such an event. And the merger produced a black hole of nearly 150 solar masses, the researchers have estimated, putting it in a range in which no black holes had ever been conclusively seen before. “Everything about this discovery is mindboggling,” says computational astrophysicist Simon Portegies Zwart.
Scientists have rallied around public-health researcher Guilherme Franco Netto after he was arrested as part of a wide-ranging corruption investigation. Franco Netto is accused of helping to defraud the government by manipulating the award of a funding contract for a public-health research project. He denies the allegations. The huge ‘Operation Car Wash’ investigation has netted business leaders and politicians across Latin America, including three former Brazilian presidents.
Features & opinion
A suite of tools can help researchers to manage citations for grants and papers, and share those references with colleagues. We look at why researchers say systems such as Paperpile, EndNote, Mendeley Reference Manager, ReadCube Papers, RefWorks, Sciwheel and Zotero can make work life substantially better. “Having a reference manager versus not having a reference manager is just a sea change,” says paediatric radiologist Michael Francavilla.
COVID-19’s effects have caused global supply chains to buckle and break — including those that make clean energy cheap. Abandoning them puts the climate at risk, argue public-policy researchers Andreas Goldthau and Llewelyn Hughes. Economic recovery — and laudable efforts to make global trade more just — must not cost us time that we do not have to save the world.