Searching for Meaning in the Universe 在宇宙中尋找存在的意義 Credit: Gary Tonge

Credit: California Carnegie Planet Search

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。

Credit: Fahad Sulehria 51 Pegasi b － Bellerophon 柏勒羅芬 Mass 質量 M Jupiter Orbital Period 公轉週期 4.23 days Semi-major Axis 軌道半徑 AU Surface Temp. 表面溫度 1022 ° C Hot Jupiter 熱木星

Credit: John Whatmough υAndromedae c Mass 質量 1.89 M Jupiter Distance 距離 AU

Planetary System Around HD 69830

Credit: NASA, ESA and G. Bacon (STScI) OGLE-2005-BLG-390Lb Mass 質量 5.5 M Earth 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

Transiting Exoplanet

Credit: NASA/JPL-Caltech/T. Pyle (SSC)

Credit: NASA/JPL-Caltech/R. Hurt (SSC)

Credit: NASA/JPL-Caltech/M. Swain (JPL/Caltech)

Credit: NASA/JPL-Caltech/R. Hurt (SSC)

Credit: NASA/JPL-Caltech/J. Harrington (Univ. of Central Florida), B. Hansen (UCLA)

Credit: NASA/JPL-Caltech/R. Hurt (SSC) 脈衝星 Pulsar 4U What is a planet?

Galactic Habitable Zone Credit: Don Dixon

Credit: Sara Chen

Credit: Gary Tonge

N = R* f p n e f l f i f c L Drake Equation 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

Search for Extraterrestrial Intelligence (SETI)

Arecibo Observatory 阿雷西博望遠鏡 Credit: NAIC

Voyager 航行者探測船

Golden Record

Allen Telescope Array

Credit: Andrew J. Lepage

Credit: Bryan Christie

Terrestrial Planet Finder