2023-12-16 13:49:43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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2023-12-16 13:49:39时空
科学家通过“圣诞树星系团”窥视,在太空中发现了14个新的瞬态物体

An international team of scientists, led by University of Missouri's Haojing Yan, used NASA's James Webb Space Telescope (JWST) to discover 14 new transient objects during their time-lapse study of galaxy cluster MACS0416 -- located about 4.3 billion li

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2023-12-16 13:49:36时空
龙谷样品中核合成同位素变化的起源探讨

The observed variations in chromium (Cr) isotope ratios in the Ryugu asteroid samples collected by Hayabusa2 likely resulted from elemental redistribution of slightly soluble Cr by water within the parent body, reveals a multinational study led by researc

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2023-12-16 13:49:32时空
由于冰下的水,系外行星的宜居性扩大

Professor Amri Wandel, from Hebrew University of Jerusalem, has unveiled research that promises to redefine our comprehension of habitable exoplanets. In a recent study published in the Astronomical Journal, Professor Wandel introduces the concep

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2023-12-16 13:49:28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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2023-12-16 13:49:26时空
早期宇宙中发现的类银河系

Using the James Webb Space Telescope, an international team, including astronomer Alexander de la Vega of the University of California, Riverside, has discovered the most distant barred spiral galaxy similar to the Milky Way that has been observed to date

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2023-12-16 13:49:23时空
詹姆斯·韦伯太空望远镜发现的第二遥远星系

The second- and fourth-most distant galaxies ever observed have been discovered in a region of space known as Pandora's Cluster, or Abell 2744, using data from NASA's James Webb Space Telescope (JWST). Following up on a deep field image of the area, an

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2023-12-16 13:49:21时空
追踪真空的量子闪烁

Absolutely empty -- that is how most of us envision the vacuum. Yet, in reality, it is filled with an energetic flickering: the quantum fluctuations. Experts are currently preparing a laser experiment intended to verify these vacuum fluctuations in a nove

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2023-12-16 13:49:17时空
科学家发现太阳黑子上方有类似极光的无线电发射

In a study published in Nature Astronomy, astronomers from New Jersey Institute of Technology's Center for Solar-Terrestrial Research (NJIT-CSTR) have detailed radio observations of an extraordinary aurora-like display -- occurring 40,000 km abo

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2023-12-16 13:49:14时空
银河系的“光剑”:回答关于黑洞喷流的长期问题

The one thing everyone knows about black holes is that absolutely everything nearby gets sucked into them.

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2023-12-16 13:49:12时空
利用日食计算土星环的透明度

A Lancaster University PhD student has measured the optical depth of Saturn's rings using a new method based on how much sunlight reached the Cassini spacecraft while it was in the shadow of the rings.

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2023-12-16 13:49:08时空
“弹跳”彗星可以为系外行星提供生命的基石

How did the molecular building blocks for life end up on Earth? One long-standing theory is that they could have been delivered by comets. Now, researchers from the University of Cambridge have shown how comets could deposit similar building blocks to oth

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