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Delve into the quest for understanding our place in the cosmos and the search for extraterrestrial life. Discover groundbreaking discoveries and scientific endeavors that unlock the mysteries of the universe and our existence.
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Searching for Meaning in the Universe 在宇宙中尋找存在的意義 Credit: Gary Tonge
宣告及讚詞 2005年邵逸夫天文學獎 得獎人 2005年邵逸夫天文學獎將平均分配予 傑弗里‧馬西Geoffrey Marcy 和米歇爾‧麥耶Michel Mayor 為表彰最早發現太陽系以外的一個恆星的行星,了解其質量與軌道,從而引導出對行星之產生的革命性的新認識。
51 Pegasi b - Bellerophon 柏勒羅芬 Mass 質量 0.468 MJupiter Orbital Period 公轉週期 4.23 days Semi-major Axis 軌道半徑 0.052 AU Surface Temp. 表面溫度 1022°C Hot Jupiter 熱木星 Credit: Fahad Sulehria
υAndromedae c Mass 質量 1.89 MJupiter Distance 距離 0.829 AU Credit: John Whatmough
Mass 質量 5.5 MEarth Orbital Period 公轉週期 10 years Semi-major Axis 軌道半徑 2.6 AU Surface Temp. 表面溫度 -220°C Red Dwarf 紅矮星 OGLE-2005-BLG-390Lb Credit: NASA, ESA and G. Bacon (STScI)
Credit: NASA/JPL-Caltech/J. Harrington (Univ. of Central Florida), B. Hansen (UCLA)
脈衝星 Pulsar 4U 0142+61 What is a planet? Credit: NASA/JPL-Caltech/R. Hurt (SSC)
Galactic Habitable Zone Credit: Don Dixon
Drake Equation N = R* • fp • ne • fl • fi • fc • L N = The number of civilizations in The Milky Way Galaxy whose electromagnetic emissions are detectable. R* =The rate of formation of stars suitable for the development of intelligent life. fp = The fraction of those stars with planetary systems. ne = The number of planets, per solar system, with an environment suitable for life. fl = The fraction of suitable planets on which life actually appears. fi = The fraction of life bearing planets on which intelligent life emerges. fc = The fraction of civilizations that develop a technology that releases detectable signs of their existence into space. L = The length of time such civilizations release detectable signals into space. Credit: Gary Tonge
Arecibo Observatory 阿雷西博望遠鏡 Credit: NAIC