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Milky Way-Like Galaxies May Have Existed in the Early Universe
Milky Way-Like Galaxies Early Universe
2015/8/13
A new, large-scale computer simulation has shown for the first time that large disk galaxies, much like our own Milky Way, may have existed in the early days of the universe.
Brown Dwarfs,Stars Share Formation Process,New Study Indicates
Brown Dwarfs Stars Share Formation Process
2015/8/4
Astronomers using the Karl G. Jansky Very Large Array (VLA) have discovered jets of material ejected by still-forming young brown dwarfs. The discovery is the first direct evidence that brown dwarfs, ...
ALMA Witnesses Assembly of Galaxies in the Early Universe for the First Time
ALMA Witnesses Assembly of Galaxies Early Universe First Time
2015/8/4
The Atacama Large Millimeter/submillimeter Array (ALMA) has detected the most distant clouds of star-forming gas yet found in normal galaxies in the early Universe. The new observations allow astronom...
Astronomers Watch Unfolding Saga of Massive Star Formation
Astronomers Unfolding Saga Massive Star
2015/4/13
A pair of images of a young star, made 18 years apart, has revealed a dramatic difference that is providing astronomers with a unique, "real-time" look at how massive stars develop in the earliest sta...
NOAO: Smashing Results About Our Nearby Galactic Neighbors
NOAO Smashing Results Nearby Galactic Neighbors
2015/1/8
The Magellanic Clouds are the two brightest nearby satellite galaxies to our own Milky Way galaxy. From a new study it appears that not only are they much bigger than astronomers calculated, but also ...
Study of Andromeda's stellar disk indicates more violent history than Milky Way（图）
Andromeda's stellar more violent history Milky Way
2015/1/20
A detailed study of the motions of different stellar populations in the disk of the Andromeda galaxy has found striking differences from our own Milky Way, suggesting a more violent history of mergers...
Astronomers solve puzzle about bizarre object at the center of our galaxy（图）
bizarre object Astronomers
2014/12/2
for years, astronomers have been puzzled by a bizarre object in the center of the Milky Way that was believed to be a hydrogen gas cloud headed toward our galaxy’s enormous black hole.
Astronomers solve puzzle about bizarre object at the center of our galaxy
astronomy The Milky Way
2014/11/10
for years, astronomers have been puzzled by a bizarre object in the center of the Milky Way that was believed to be a hydrogen gas cloud headed toward our galaxy’s enormous black hole.
Massive black holes spewing out radio-frequency-emitting particles at near-light speed can block formation of new stars in aging galaxies, a study has found.
Formation and large-scale confinement of jets emitted by young stars finally elucidated
young stars plane scientists
2014/10/30
An international team of scientists has succeeded in explaining the formation and propagation over astronomical distances of jetsof matter emitted by young stars—one of the most fascinating mysteries ...
Mixing in star-forming clouds explains why sibling stars look alike（图）
sibling star-forming clouds
2014/9/12
The chemical uniformity of stars in the same cluster is the result of turbulent mixing in the clouds of gas where star formation occurs, according to a study by astrophysicists at the University of Ca...
银河系的真实质量远小于此前预期
银河系 真实质量 此前预期
2014/7/31
直到近期，科学家还一度认为，银河系质量要比太阳质量大3万亿倍，但英国一项最新研究表明，银河系比以前认为的要轻——是我们太阳质量的8000亿倍，这意味着它仅是我们“邻居”仙女座星系质量的一半而已。相关研究可以揭示出星系的外部区域是如何构造的，还可以为暗物质的存在和形成提供解释。
“哈勃”发现大量气体流入银河系（图）
哈勃 大量气体 银河系
2014/7/10
银河系可能已经找到了一个解决气体短缺的办法。天文学家曾估算，人类居住的这个星系所拥有的燃料仅仅够它在未来几十亿年中制造新的恒星。然而科学家如今发现，正有4倍于之前预期的气体源源不断地流入银河系，从而为后者很长一段时间的造星生涯奠定了基础。
Distant Milky Way M Giants（图）
The Milky Way. Stars Distant Astrophysics. The telescope. Red dwarfs galaxy
2014/7/18
The distant outskirts of the Milky Way harbor valuable clues for understanding the formation and evolution of our Galaxy. Yet, due to overwhelming distances and an extremely sparse population of star...
Analyzing sun-like stars that eat Earth-like planets
Analyzing sun-like stars eat Earth-like planets
2014/6/12
Some Sun-like stars are ‘Earth-eaters.’ During their development they ingest large amounts of the rocky material from which ‘terrestrial’ planets like Earth, Mars and Venus are made.