2023-12-16 13:47:32时空
解开中子星自转异常:量子模拟的启示

A collaboration between quantum physicists and astrophysicists, led by Francesca Ferlaino and Massimo Mannarelli, has achieved a significant breakthrough in understanding neutron star glitches. They were able to numerically simulate this enigmatic cosmic

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2023-12-16 13:47:30时空
作为气候档案的小行星坑湖的局限性

In southern Germany just north of the Danube, there lies a large circular depression between the hilly surroundings: the Nördlinger Ries. Almost 15 million years ago, an asteroid struck this spot. Today, the impact crater is one of the most useful an

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2023-12-16 13:47:27时空
恒星风调节星系的生长

Galactic winds enable the exchange of matter between galaxies and their surroundings. In this way, they limit the growth of galaxies, that is, their star formation rate. Although this had already been observed in the local universe, an international resea

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2023-12-16 13:47:23时空
关于巨型外卫星的巨大疑问

Only two of the more than 5300 known exoplanets have so far provided evidence of moons in orbit around them. In observations of the planets Kepler-1625b and Kepler-1708b from the Kepler and Hubble space telescopes, researchers had discovered traces of suc

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2023-11-20 16:48:15时空
科学家发现脉冲星有史以来能量最高的伽马射线

Scientists using the H.E.S.S. observatory in Namibia have detected the highest energy gamma rays ever from a dead star called a pulsar. The energy of these gamma rays clocked in at 20 tera-electronvolts, or about ten trillion times the energy of visible l

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2023-11-20 16:48:14时空
寻找第九颗行星的阴谋愈演愈烈

A pair of theoretical physicists are reporting that the same observations inspiring the hunt for a ninth planet might instead be evidence within the solar system of a modified law of gravity originally developed to understand the rotation of galaxies.

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2023-11-20 16:48:13时空
脉冲星可能使暗物质发光

The central question in the ongoing hunt for dark matter is: what is it made of? One possible answer is that dark matter consists of particles known as axions. A team of astrophysicists, led by researchers from the universities of Amsterdam and Princeton,

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2023-11-20 16:48:12时空
天文学家发现行星形成的第一步

Astronomers have gotten very good at spotting the signs of planet formation around stars. But for a complete understanding of planet formation, we also need to study examples where planet formation has not yet started. Looking for something and not findin

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2023-11-20 16:48:10时空
银河系中心具有动荡形成历史的年轻恒星喷泉

An unexpectedly high number of young stars has been identified in the direct vicinity of a supermassive black hole and water ice has been detected at the center of our galaxy.

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2023-11-20 16:48:10时空
探测到水星局部合唱波的电子加速源和X射线极光

Observations during two flybys by the Mio spacecraft as part of the BepiColombo International Mercury Exploration Project have revealed that chorus waves occur quite locally in the dawn sector of Mercury. Mercury's magnetic field is about 1% of that of E

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2023-11-20 16:48:09时空
寻找银河系翘曲的解释

The Milky Way is often depicted as a flat, spinning disk of dust, gas, and stars. But if you could zoom out and take an edge-on photo, it actually has a distinctive warp -- as if you tried to twist and bend a vinyl LP.

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2023-11-20 16:48:07时空
研究人员表示,很容易清除地外样本中的磁性航天器污染

For decades, scientists have pondered the mystery of the moon's ancient magnetism. Based on analyses of lunar samples, its now-deceased magnetic field may have been active for more than 1.5 billion years -- give or take a billion years. Scientists believ

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