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UA Astronomers Track the Birth of a ‘Super-Earth’（图）
UA Astronomers Track the Birth Super-Earth
2017/7/24
A new model giving rise to young planetary systems offers a fresh solution to a puzzle that has vexed astronomers ever since new detection technologies and planet-hunting missions such as NASA's ...
A cosmic barbecue:Researchers spot 60 new ‘hot Jupiter’ candidates
A cosmic barbecue Researchers 60 new hot Jupiter candidates
2017/7/24
Yale researchers have identified 60 potential new “hot Jupiters” — highly irradiated worlds that glow like coals on a barbecue grill and are found orbiting only 1% of Sun-like stars.Hot Jupiters const...
太阳引力可用于放大星际传播信号
太阳引力 星际传播信号
2017/7/4
据《新科学家》杂志网站近日报道，德国天文物理学家迈克尔·希帕克首次通过计算证明，太阳引力可用来放大星际探测器的传播信号，并提议，在距离太阳900亿千米的位置安装口径1米的小型望远镜，取代地面大型望远镜，解决去往太阳系附近恒星系统的探测器面临的星际通信难题。
Astronomers discover comets may be more fragile than previously believed
Astronomers comets more fragile previously believed
2017/7/24
Dr. Maria Womack from the University of South Florida is lead investigator of a study on the Centaur “Echeclus,” which is a peculiar minor planet in our solar system.“Echeclus is rare because it behav...
Bizarro Comet Challenging Central Florida Researchers
Bizarro Comet Central Florida Researchers
2017/7/24
Scientists pursue research through observation, experimentation and modeling. They strive for all of these pieces to fit together, but sometimes finding the unexpected is even more exciting.That’s...
“开普勒”发现200多颗候选系外行星
开普勒 200多颗 系外行星
2017/6/21
美开普勒空间望远镜又发现了219颗新的候选行星，其中10颗位于各自恒星的“宜居带”内，其表面有可能存在生命必需的液态水。图片来源：NASA/Ames Research Cente
银河系充满了像地球一样的世界。这是开普勒空间望远镜给我们上的一课——作为美国宇航局（NASA）大型太阳系外行星搜寻项目，该望远镜又发现了219颗新的候选系外行星，使其总数达到4034颗，其中2335颗已被确认为真正的行...
Since the mid-1990s, when the first planet around another sun-like star was discovered, astronomers have been amassing what is now a large collection of exoplanets—nearly 3,500 have been confirmed so ...
木星是太阳系内最古老行星
木星 太阳系 古老行星
2017/6/15
美国劳伦斯利弗莫尔国家实验室和德国明斯特大学科学家组成的国际科研团队，对铁陨石上的钨和钼同位素进行分析后指出，木星是太阳系内最古老的行星，可谓行星家族的“老大哥”——其固体内核在太阳系诞生之后100万年内就已形成。知悉木星的年龄，对于我们理解太阳系如何演化成今天的“模样”至关重要。
最新研究发表在日前出版的美国《国家科学院院刊》在线版上。研究中的陨石来自于两种迥然不同的星云，这两种星云在太阳系形...
NSF will join several federal agencies and science organizations June 21 for two back-to-back briefings organized by NASA to provide important solar eclipse viewing safety, travel and science informat...
One of Life’s Building Blocks Found around Infant Sun-like Stars
Life’s Building Blocks Infant Sun-like Stars
2017/7/21
Our solar system is teeming with simple carbon-based molecules, the basic building blocks of life. If the conditions are right, these simple molecules can go on to form more complex, biologically inte...
Astronomers discover exoplanet hotter than most stars
Astronomers exoplanet hotter most stars
2017/7/21
Imagine a planet like Jupiter zipping around its host star every day and a half, superheated to temperatures hotter than most stars and sporting a giant, glowing gas tail like a comet.That is what an ...
A newly discovered Jupiter-like world is so hot that it’s stretching the definition of the word “planet.”With a day-side temperature of 4,600 Kelvin (more than 7,800 degrees Fahrenheit), planet KELT-9...
Two James Webb instruments are best suited for exoplanet atmospheres
Two James Webb instruments exoplanet atmospheres
2017/7/20
The best way to study the atmospheres of distant worlds with the James Webb Space Telescope, scheduled to launch in late 2018 will combine two of its infrared instruments, according to a team of astro...
ALMA investigates ‘DeeDee,’a distant,dim member of our solar system
ALMA DeeDee a distant dim member solar system
2017/4/27
Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have revealed extraordinary details about a recently discovered far-flung member of our solar system, the planetary body 2014...
Planetoid Pairs Reveal a Kinder,Gentler Neptune
Planetoid Pairs Reveal Kinder Gentler Neptune
2017/4/27
"It’s a kinder, gentler Neptune," says Gemini astronomer Meg Schwamb in describing a new result that leaves little doubt about how Neptune gently swept a class of planetoid pairs into the outer Solar ...