搜索结果: 1-15 共查到“国际动态 理学 origins”相关记录19条 . 查询时间(0.296 秒)
Study: Without more data, a black hole’s origins can be “spun” in any direction（图）
黑洞 双星系统 黑洞起源
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2023/6/9
Clues to a black hole’s origins can be found in the way it spins. This is especially true for binaries, in which two black holes circle close together before merging. The spin and tilt of the respecti...
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 ...
Zeroing in on the origins of Earth’s “single most important evolutionary innovation”（图）
地球 进化创新 含氧光合作用
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2023/6/21
Some time in Earth’s early history, the planet took a turn toward habitability when a group of enterprising microbes known as cyanobacteria evolved oxygenic photosynthesis — the ability to turn light ...
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 ...
Study Confirms Cosmic Rays Have Extragalactic Origins（图）
Cosmic Rays Extragalactic Origins
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2017/10/24
In an article to be published Sept. 22 in the journal Science, a group of more than 400 scientists from 18 nations describe how they detected an anisotropy, an asymmetry in the cosmic particles’ distr...
Milky Way’s origins are not what they seem（图）
Milky Way’s origins not what they seem
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2017/9/1
In a first-of-its-kind analysis, Northwestern University astrophysicists have discovered that, contrary to previously standard lore, up to half of the matter in our Milky Way galaxy may come from dist...
Finding the origins of life in a drying puddle
origins of life drying puddle
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2015/8/4
Anyone who's ever noticed a water puddle drying in the sun has seen an environment that may have driven the type of chemical reactions that scientists believe were critical to the formation of life on...
Scientists discover the genomic origins of canola（图）
canola Scientists genomic origins
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2014/9/12
Brassica plants have been bred for centuries and result in produce and products diverse enough to show up in supermarkets all over the world. Brassica napus, more commonly known as rapeseed or canola,...
The genetic origins of high-altitude adaptations in Tibetans（图）
Tibetans high-altitude adaptations
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2014/3/21
Genetic adaptations for life at high elevations found in residents of the Tibetan plateau likely originated around 30,000 years ago in peoples related to contemporary Sherpa. These genes were passed o...
Mesolithic man reveals origins of blue eyes, lactose intolerance
Mesolithic blue eyes
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2014/7/9
The discovery of a Stone Age man with the genes for blue eyes and dark skin has revealed that blue eye colour is likely to have spread through the European population earlier than fair skin.
‘Extreme’ genes sheds light on origins of photosynthesis
‘Extreme’ genes photosynthesis
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2009/12/23
While most school children understand that green plants photosynthesize, absorb carbon dioxide and produce oxygen, few people consider the profound global-scale effects that photosynthesis has had on ...
Scientists Locate Deep Origins of "Hawaiian Hotspot"（图）
Scientists Deep Origins Hawaiian Hotspot
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2009/12/15
The Hawaiian Islands are one of the outstanding volcanic features on Earth, but their origins have been shrouded in mystery.Still in debate has been a theory proposed 40 years ago, which states that m...
Cambridge research to explore the origins of the universe（图）
Cambridge origins of the universe rocket CMB European Space Agency
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2009/5/21
Cambridge University researchers are casting their gaze back to the start of the universe following the launch last week of two of the most expensive scientific satellites ever built by the European S...
New System Developed by Scripps Researchers Traces the Origins of Marine Creatures（图）
Oceanography marine animals
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2007/3/26
March 21, 2007，Tracing the origins of marine animals can be extremely difficult, especially in the free-flowing, soup-like conditions of the ocean, but obtaining this information is vital not only for...
The Structure of Origins
ribozyme RNA molecules
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2007/3/22
Mar 20, 2007，Researchers at the University of California, Santa Cruz, have determined the three-dimensional structure of an RNA enzyme, or "Mar 20, 2007，Researchers at the University of California, Sa...