Black

• Uma equipe internacional, incluindo pesquisadores da University of Wisconsin–Madison, mediu a força dos jatos de partículas expelidos de um buraco negro no sistema Cygnus. • Esta medição inédita confirma uma previsão feita por astrônomos da UW-Madison há uma década. • As descobertas validam teorias de longa data sobre a mecânica dos jatos de buracos negros, avançando o entendimento da astrofísica.

• Decisão dá aos responsáveis pela elaboração de mapas em estados republicanos o poder de fragmentar distritos em pedaços e diluir votos até o esquecimento • O Voting Rights Act foi um pacto político de paz escrito com o sangue de John Lewis. • A decisão Callais v Landry da US supreme court, que desconsiderou grande parte da seção 2 do Voting Rights Act, apagou esse sangue da história, junto ao de milhares de outros americanos que lutaram contra supremacistas brancos segregacionistas em balcões de lanchonetes, rodoviárias e tribunais pela igualdade política. Continue lendo...

• Terri Sewell e Shomari Figures correm o risco de perder seus cargos nos distritos congressuais negros do Alabama após a decisão. • Os legisladores que representam os dois distritos congressuais negros do Alabama, agora em risco de perder seus assentos após a Suprema Corte efetivamente aniquilar o Voting Rights Act, afirmaram que a decisão leva os EUA "para trás". • A decisão de 6 a 3 em Louisiana v Callais, na quarta-feira, enfraquece uma disposição fundamental do Voting Rights Act, abrindo caminho para que os republicanos eliminem distritos congressuais de maioria minoritária em todo o sul, colocando os representantes Terri Sewell e Shomari Figures na mira. Continue lendo...

Exclusivo: Pesquisa de Cambridge revela que estressores socioambientais podem influenciar a capacidade do corpo de funcionar saudavelmente durante a gravidez • O estresse decorrente do racismo e da privação pode explicar por que mulheres negras têm maior probabilidade de morrer durante o parto, descobriu um estudo. • Pesquisadores revisaram 44 estudos existentes que examinaram três vias fisiológicas associadas a piores desfechos na gravidez: estresse oxidativo, inflamação e resistência vascular uteroplacentária, e descobriram que mulheres negras apresentavam níveis mais elevados nessas três métricas. Leia mais...

Though solar was initially blamed for loss of power, renewables have helped to insulate Spain from gas price rises caused by war in Middle EastOne year ago today, all of Spain, and much of Portugal, suffered through a blackout of unprecedented scale and duration. In mere seconds, a cascading sequence of events burst through the grid and created Europe’s first “system black” event in recent memory.Traffic signals failed, mobile networks stopped working entirely, petrol stations could not pump fuel and supermarkets couldn’t process payments. Madrid’s metro came to a halt and people had to be pulled out of carriages. “People were stunned because this had never happened in Spain,” Carlos Condori, a 19-year-old construction sector worker, told AFP at the time. “There’s no [phone] coverage, I can’t call my family, my parents, nothing: I can’t even go to work.” Continue reading...

Actions expected to exceed 3,000 as unions and groups expand protests inspired by Minnesota ICE crackdownLabor unions, democratic organizations and community groups are organizing an economic blackout this year to commemorate May Day, International Workers Day, inspired by the economic blackout in Minnesota during the massive ICE operation in the state.May Day Strong events are being planned across the US, with organizers calling for “no school, no work, no shopping”, in protest of government policies they say put billionaires’ needs above those of workers. Continue reading...

• Nvidia launched Blackwell Ultra B300 GPUs on April 25, 2026, at GTC US, delivering 20 petaflops FP4 performance for training models up to 10 trillion parameters. • New chips feature 4.5TB HBM4 memory and NVLink 6 interconnect, reducing training costs by 40% for hyperscalers like Microsoft Azure. • Announcement bolsters Nvidia's 92% AI accelerator market dominance amid US export controls on China sales.

Relatives of London pupils and German villagers mark anniversary of ‘English misfortune’ that Nazis turned into propaganda coupOn 17 April 1936, the bells of St Laurentius church in the Black Forest rang out to guide to safety a group of London schoolboys trapped in deep snow on a mountain hike gone very wrong. Ninety years on to the day, as the bells sounded again, there was hardly a dry eye in the congregation of British relatives and German villagers remembering the night that had brought together their parents and grandparents.The people of Hofsgrund risked their lives heading out with sledges and lanterns in the deadly weather to rescue the party of 27 and their teacher after two boys, fumbling though fog and frozen to the bone, had reached a farmhouse and told its startled inhabitants there were many more of them strewn over the Schauinsland mountain.The Daily Sketch from 20 and 29 April 1936 Continue reading...