搜索结果: 1-15 共查到“理学 Universe”相关记录197条 . 查询时间(0.14 秒)
Between two infinities: Our place in the Universe – a conference by Gianfranco Bertone on 1 June（图）
天文学 理论天体粒子物理 引力波
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2023/5/25
Spectacular advances in modern astronomy have opened our horizon to an unexpected cosmos: a dark, mysterious universe, populated by enigmatic entities we know very little about, such as black holes, d...
2023 Bethe Lecture: How fast is the universe expanding?（图）
宇宙膨胀 哈勃常数 宇宙学
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2023/5/17
The current rate of the expansion of space – called the Hubble constant – is a measure of the age and size of the universe. But recently, a new debate has emerged about the Hubble constant, potentiall...
Astronomers discover metal-rich galaxies in early universe
宇宙 富含金属 星系
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2023/5/17
Scanning the first images of a well-known early galaxy taken by NASA’s James Webb Space Telescope (JWST), Cornell astronomers were intrigued to see a blob of light near its outer edge.
How the universe got its magnetic field（图）
宇宙 磁场 等离子体湍流
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2023/6/9
When we look out into space, all of the astrophysical objects that we see are embedded in magnetic fields. This is true not only in the neighborhood of stars and planets, but also in the deep space be...
Scientists develop the largest, most detailed model of the early universe to date（图）
早期宇宙模型 黎明女神 Thesan 辐射
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2023/6/9
It all started around 13.8 billion years ago with a big, cosmological “bang” that brought the universe suddenly and spectacularly into existence. Shortly after, the infant universe cooled dramatically...
A glimpse into the universe’s first light（图）
早期宇宙 大爆炸 再电离时代
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2023/6/25
It looks like fireflies flickering in the darkness. Slowly, more and more amass, lighting up the screen in large chunks and clusters.
Yen-Jie Lee probes particle collision data for clues to the universe’s origins（图）
粒子碰撞数据 宇宙起源 粒子物理学
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2023/6/9
When Yen-Jie Lee came to MIT as a graduate student in 2006, it was a bit of a culture shock. The aspiring particle physicist had studied physics at National Taiwan University before his career took a ...
Using particle accelerators to investigate the quark-gluon plasma of the infant universe
QGP atom neutron
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2021/8/10
A new special edition of EPJ Special Topics brings together several papers that detail our understanding of Quark-Gluon Plasma (QGP) and the processes that transformed it into the baryonic matter we a...
Charting the universe（图）
宇宙图 天体物理学 暗能量光谱仪器
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2023/6/25
In 1983, astrophysicists at the Center for Astrophysics | Harvard & Smithsonian (CfA) released a cosmic map using 2,400 galaxies. Now, CfA scientists are aiming to map 30 million.
How fast is the universe expanding? Galaxies provide one answer（图）
universe expanding Galaxies answer
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2021/4/9
Determining how rapidly the universe is expanding is key to understanding our cosmic fate, but along with more precise data comes a conundrum. Estimates based on measurements in our current universe d...
Scientists link star-shredding event to origins of universe's highest-energy particles（图）
Scientists star-shredding event origins universe highest-energy particles
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2021/3/5
A team of scientists has detected the presence of a high-energy neutrino -- a particularly elusive particle -- in the wake of a star's destruction as it is consumed by a black hole.The discovery is a ...
Glimpse of a blazar in the early universe（图）
Glimpse blazar early universe
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2021/1/18
The supersharp radio "vision" of the U.S. National Science Foundation's Very Long Baseline Array has revealed previously unseen details in a jet of material ejected at three-quarters the speed of...
New view of nature's oldest light adds fresh twist to debate over universe's age（图）
New view nature oldest light adds fresh twist debate over universe's age
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2020/7/31
From a mountain high in Chile's Atacama Desert, astronomers at the U.S. National Science Foundation's Atacama Cosmology Telescope (ACT) have taken a fresh look at the oldest light in th...
Scientists discover massive rotating disk in early universe（图）
Scientists massive rotating disk early universe
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2020/6/5
In the 13.8 billion-year-old universe, most galaxies form gradually, reaching their large mass relatively late.But the National Science Foundation-funded discovery of a massive rotating disk gala...
New method may resolve difficulty in measuring universe's expansion（图）
New method difficulty measuring universe
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2019/10/23
Astronomers using National Science Foundation radio telescopes have demonstrated how a combination of gravitational-wave and radio observations, along with theoretical modeling, can turn the mergers o...