2023-11-20 16:47:51时空
为了推进太空殖民,新研究探索微重力条件下的3D打印

Research from West Virginia University students and faculty into how 3D printing works in a weightless environment aims to support long-term exploration and habitation on spaceships, the moon or Mars.

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2023-11-20 16:47:51时空
地球大气层在产生影响卫星通信的大风暴中的重要性

A study from an international team led by researchers from Nagoya University in Japan and the University of New Hampshire in the United States has revealed the importance of the Earth's upper atmosphere in determining how large geomagnetic storms develop

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2023-11-20 16:47:50时空
美国国家航空航天局的韦布在新的光线下看到的蟹状星云

NASA's James Webb Space Telescope has gazed at the Crab Nebula, a supernova remnant located 6,500 light-years away in the constellation Taurus. Since the recording of this energetic event in 1054 CE by 11th-century astronomers, the Crab Nebula has contin

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2023-11-20 16:47:49时空
“侏罗纪世界”可能比现代地球更容易被发现

Things may not have ended well for dinosaurs on Earth, but Cornell University astronomers say the "light fingerprint" of the conditions that enabled them to emerge here provide a crucial missing piece in our search for signs of life on planets orbiting

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2023-11-20 16:47:49时空
巨大的行星投下致命的阴影

Giant gas planets can be agents of chaos, ensuring nothing lives on their Earth-like neighbors around other stars. New studies show, in some planetary systems, the giants tend to kick smaller planets out of orbit and wreak havoc on their climates.

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2023-11-20 16:47:48时空
研究人员发现引力透镜对宇宙双折射有显著影响

Future missions will be able to find signatures of violating the parity-symmetry in the cosmic microwave background polarization more accurately after a pair of researchers has managed to take into account the gravitational lensing effect, reports a new s

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2023-11-20 16:47:48时空
正在爆炸的恒星

When massive stars or other stellar objects explode in the Earth's cosmic neighborhood, ejected debris can also reach our solar system. Traces of such events are found on Earth or the Moon and can be detected using accelerator mass spectrometry, or AMS f

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2023-11-20 16:47:47时空
黑洞吃东西很乱

New observations down to light-year scale of the gas flows around a supermassive black hole have successfully detected dense gas inflows and shown that only a small portion (about 3 percent) of the gas flowing towards the black hole is eaten by the black

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2023-11-20 16:47:46时空
谜团解开:活跃星系中心的黑洞进食和反馈

An international research team led by Takuma Izumi, an assistant professor at the National Astronomical Observatory of Japan, has observed in high resolution (approximately 1 light year) the active galactic nucleus of the Circinus Galaxy -- one of the clo

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2023-11-20 16:47:46时空
对冰卫星地质断层的研究有助于探索外星水世界

On the surface of many of the icy moons in our solar system, scientists have documented strike-slip faults, those that occur when fault walls move past one another sideways, as is the case at the San Andreas fault in California. Two recently published stu

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2023-11-20 16:47:45时空
新发现支持了长期以来提出的行星形成过程

Scientists using NASA's James Webb Space Telescope just made a breakthrough discovery in revealing how planets are made. By observing water vapor in protoplanetary disks, Webb confirmed a physical process involving the drifting of ice-coated solids from

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2023-11-20 16:47:44时空
火星夜晚首次探测到可见光范围内的辉光

An international team led by scientists from the University of Liège has observed, for the first time in the visible range, a glow on the night side of the planet Mars. These new observations provide a better understanding of the dynamics of the up

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