Science
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Most newborn black holes spew gas so hard they almost stop spinning
Jets of plasma may slow down the spins of black holes NASA/JPL-Caltech Most black holes may spin far more slowly than expected. When black holes form from collapsing stars, they emit powerful jets of energy, and these jets slow down the black holes’ spin to nearly nothing within minutes. The spin of a newborn black hole is governed by two…
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Nuclear fusion reaction releases almost twice the energy put in
Fusion experiments at the US National Ignition Facility have achieved a significant milestone Philip Saltonstall Scientists have confirmed that a fusion reaction in 2022 reached a historic milestone by unleashing more energy than was put into it – and subsequent trials have produced even better results, they say. The findings, now published in a series of papers, give encouragement that…
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Contaminated hormone injections may have given five people Alzheimer’s
Some recipients of human growth hormone showed signs of Alzheimer’s disease on their brain scans Teek Image/SPL/Alamy Five people appear to have developed Alzheimer’s disease after receiving growth hormones from deceased donors’ brains as children. Although based on a small group of people, this suggests that the condition could theoretically be transmitted during medical procedures. However, measures are in place…
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