搜索结果: 46-60 共查到“国际动态 行星物理学”相关记录190条 . 查询时间(3.079 秒)
A cosmic barbecue:Researchers spot 60 new ‘hot Jupiter’ candidates
A cosmic barbecue Researchers 60 new hot Jupiter candidates
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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...
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
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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...
Astronomers discover exoplanet hotter than most stars
Astronomers exoplanet hotter most stars
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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 Planet Hotter Than Most Stars
A Planet Hotter Most Stars
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2017/7/21
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
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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...
Planetoid Pairs Reveal a Kinder,Gentler Neptune
Planetoid Pairs Reveal Kinder Gentler Neptune
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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 ...
The same kind of large-scale planetary waves that meander through the atmosphere high above Earth's surface may also exist on the Sun, according to a new study led by a scientist at the National Cente...
天文学家发现拥有7颗类地球行星的“新太阳系”
新太阳系 天文学 行星
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2017/3/16
美国航空航天局（NASA）发现了一个距地球仅40光年的“新太阳系”。该恒星系拥有7颗质量和尺寸都类似地球的行星，其中3颗表面可能蕴藏含水的海洋，存在可居住区域，这增加了该星系接纳生命的可能性。该发现引用了西班牙威廉·赫歇耳（WHT）地面望远镜长年观察收集的数据。
Three decades ago, astronomers spotted one of the brightest exploding stars in more than 400 years. The titanic supernova, called Supernova 1987A (SN 1987A), blazed with the power of 100 million suns ...
天文学家发现7颗系外行星 6颗位于宜居带
天文学家 7颗系外行星 6颗 宜居带
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2017/2/23
英国《自然》杂志2017年2月22日在线发布一项行星科学重大发现，天文学家发现距太阳仅39光年外有7颗地球大小的系外行星，正围绕一颗恒星运转。研究显示其中轨道靠里的6颗行星都位于宜居带，表面温度可能在0摄氏度到100摄氏度之间。美国国家航空航天局（NASA）于美国东部时间2017年2月22日举办了同一主题的新闻发布会。
Scientists make huge dataset of nearby stars available to public
Scientists huge dataset nearby stars available public
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2017/3/13
The search for planets beyond our solar system is about to gain some new recruits.Today, a team that includes MIT and is led by the Carnegie Institution for Science has released the largest collection...
NASA搜寻地球特洛伊小行星——有望探测到人类星球原初成分
地球特洛伊小行星 人类星球
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2017/2/14
据美国国家航空航天局（NASA）官网2017年2月10日消息，NASA的“源光谱释义资源安全风化层辨认探测器（OSIRIS—REx）”，正在搜寻一类神秘莫测的近地天体-地球的特洛伊（Trojan）小行星。研究人员表示，此次搜寻或许能探测到地球的原初组成成分。
Astronomers discover dark past of planet-eating ‘Death Star’
Astronomers dark past planet-eating Death Star
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2016/12/27
An international team of scientists, including researchers from the University of Chicago, has made the rare discovery of a planetary system with a host star similar to Earth’s sun. Especially intrigu...
Rings around young star suggest planet formation in progress
Rings around young star planet formati progress
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2016/12/27
Rice University astronomers and their colleagues have for the first time mapped gases in three dark rings around a distant star. The rings mark spaces where planets are thought to have formed from dus...