搜索结果: 91-105 共查到“国际动态 行星物理学”相关记录190条 . 查询时间(4.061 秒)
美科学家研究称行星“结伴”现象将是寻找地外生命的关键
行星 生命 天文学 宇宙
2014/8/7
宇宙也是江湖，行走在其中还是“成双结伴”更好。美国天文学家近期一项研究表明，行星这种“结伴”的现象，会大为增加我们找到外星生命的几率。一个和地球差不多大小的星球，在万有引力的作用下，能通过“潮汐加热”从而产生足够的热量来防止内部冷却，而该现象同样可以发生在系外行星身上。这为人类寻找外星生命的进程增加了一个新途径，同时将加大天文学界发现拥有宜居环境的“超级地球”的可能性。
Young binary star system may form planets with weird and wild orbits
Young binary star system planets with weird wild orbits
2014/8/14
Unlike our solitary Sun, most stars form in binary pairs -- two stars that orbit a common center of mass. Though remarkably plentiful, binaries pose a number of questions, including how and where plan...
美行星学家欢迎木卫二任务（图）
美行星学家 木卫二任务 行星学工程
2014/7/29
数年来，Hunter Waite一直在等待着能将其行星学工程设备用于木星冰冷卫星——木卫二的探测任务中。现在，这位美国西南研究所空间和工程项目主管可能终于等到了机会。
Controversial Clues of Two 'Goldilocks Planets' That Might Support Life are Proven False
Dwarfs Liquid water Stars Rock The planets Radiation Astrophysics
2014/7/18
03 July 2014 — Mysteries about controversial signals coming from a dwarf star considered to be a prime target in the search for extraterrestrial life now have been solved in research led by scientists...
Discovery Expands Search for Earthlike Planets（ 图）
A binary system Astronomy The sun The moon Orbit The Milky Way
2014/7/18
COLUMBUS, Ohio—A newly discovered planet in a binary star system located 3,000 light-years from Earth is expanding astronomers’ notions of where Earth-like—and even potentially habitable—planets can f...
‘Upside-down planet’ reveals new method for studying binary star systems
Upside-down planet reveals new method studying binary star systems
2014/5/13
What looked at first like a sort of upside-down planet has instead revealed a new method for studying binary star systems, discovered by a University of Washington student astronomer.
美首次模拟巨型小行星撞击地球后果
美 首次模拟 巨型小行星 撞击地球
2014/4/16
在生命诞生的早期，地球仍然要频繁经历太空小行星撞击这种“暴力事件”。科学家日前首次模拟了一颗巨型小行星撞击对早期地球产生的影响，发现其造成的灾难是如此巨大，不但引发了大地震和海啸，还可能推动了大陆运动。
Orbital physics is child's play with super planet crash
Orbital physics is child's play with super planet crash
2014/4/16
Super Planet Crash is a pretty simple game: players build their own planetary system, putting planets into orbit around a star and racking up points until they add a planet that destabilizes the whole...
EVANSTON, Ill. --- During its four-year mission, NASA’s Kepler space telescope discovered thousands of “planetary candidates” in our Milky Way galaxy -- the vast majority of which are almost certainly...
'Death stars' in Orion blast planets before they even form（图）
Death stars they even form planets
2014/3/20
The Orion Nebula is home to hundreds of young stars and even younger protostars known as proplyds. Many of these nascent systems will go on to develop planets, while others will have their planet-form...
天文学家在近地系外行星大气中发现水
天文学家 近地系外行星大气 水
2014/2/27
据《参考消息》2014年2月27日报道，【美国趣味科学网站2月25日报道】天文学家在最早发现的系外行星之一的大气中发现了水蒸气。
美国研究人员认为火星表面可能有水流动
美国 火星表面 有水流动 气温
2014/2/17
美国航天局喷气推进实验室2014年2月10日表示，火星表面现今可能仍然存在着流动的水，至少在温暖季节。当火星表面气温上升时，一些火星斜坡地带会出现向下移动的手指状阴影。科学家推测，这一现象或许显示火星表面在气温较高季节存在水流。由于火星表面大部分地区常年低于摄氏零度，硫酸铁等含铁矿物可能起到了防止水流冻结作用。
火星勘测轨道飞行器项目科学家理查德·茹雷克认为，如果能证实火星表面目前仍有水流，会是...
Strange events have long been linked to nights of a full moon, though careful scrutiny dispels any association. So, when signals bounced off the lunar surface returned surprisingly faint echoes on ful...
ALMA discovers a formation site of a giant planetary system（图）
a giant planetary system ALMA
2014/3/17
A team of Japanese astronomers has obtained a firm evidence of formation of a giant planetary system around a young star by the observations with the Atacama Large Millimeter/submillimeter Array (ALMA...
The star system harboring the new planet contains only one star, as do the other three systems with extrasolar planets analyzed by Kane, an assistant professor of physics and astronomy, and his collea...