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China’s dark matter space probe detects tantalizing signal
中国连夜宣布重磅新闻!“悟空”可能首次看到了暗物质!
A long-standing challenge in physics has been finding evidence for dark matter, the stuff presumed to make up a substantial chunk of the mass of the universe. Its existence seems to be responsible for the structure of the universe and the formation and evolution of galaxies. But physicists have yet to observe this mysterious material.
物理学中一个存在已久的挑战即是，找到暗物质存在的证据，暗物质被假定为制造了一个巨大的宇宙。它的存在看似决定着宇宙的结构及星系的形成与演化。但是，物理学家们至今未观察到这一神秘的物质。
Results reported today by a China-led space science mission provide a tantalizing hint—but not firm evidence—for dark matter. Perhaps more significantly, the first observational data produced by China’s first mission dedicated to astrophysics shows that the country is set to become a force in space science, says David Spergel, an astrophysicist at Princeton University. China is now "making significant contributions to astrophysics and space science," he says.
中国领导的一个太空科学任务今日报道的结果提供了一个暗物质存在的诱人暗示——虽非确凿的证据。普林斯顿大学天台物理学家大卫·斯珀格尔表示，也许更为重要的是，中国的首个致力于天体物理学的任务产生的首个探测数据表明，中国即将成为太空科学的一个强国。现在，中国“对天体物理学和太空科学做出了重大贡献。”
Physicists have inferred the existence of dark matter from its gravitational effect on visible matter. But it has never been observed.
物理学们已经从暗物质对可见物质的引力效应推测出暗物质的存在。但是从未观察到过。
China’s Dark Matter Particle Explorer (DAMPE) was designed to try to fill that gap, by looking for an indirect decay signal of a hypothetical dark matter candidate called weakly interacting massive particles (WIMPs). Researchers launched the spacecraft from the Jiuquan Satellite Launch Center in the Gobi Desert, about 1600 kilometers west of Beijing, in December 2015.
中国的暗物质粒子探测卫星就是通过寻找被称为大质量弱相互作用粒子的假定暗物质候选物的间接衰减信号来试图填补这一缺口。2015年12月，研究人员们从北京西部1600千米的戈壁沙漠的酒泉发射中心发射了该宇宙飞船。
More data will be needed to confirm what DAMPE is possibly seeing. But there is good news on that front.
仍需更多数据来证实暗物质粒子探测卫星可能正在观察的东西。但是这是这一前线的好消息。