Trees 樹木 (8/7/2003)
沒有什麼好介紹，只是覺得張相美麗而已。這張相拍攝的所在地是位於美國肯塔基州的路易斯維爾，如果香港也有些這樣的地方，你說多好。

Caption:: Nothing special to say today, just relax and enjoy this pic. The pic is photographed at Louisville, Kentucky, USA. Really wish that Hong Kong could have this kind of environment.

Credit:: Adam Jones

Venus 金星 (7/7/2003)
金星不是金色的，所以不要被這張相誤導，只是很巧合地美國太空總署替它上了金色的假色而已。金星是太陽系中離太陽第2近的恆星，也是地球的姊妹行星，體積跟地球很接近。但金星有著一層厚厚的大氣，使我們不能直接看到它的表面。九十年代初，美國的麥哲倫號探測船到達金星展開一連串的探索任務，包括借助雷達，去繒製圖中的金星表面地圖。

Caption:: This global view of the surface of Venus is centered at 180 degrees east longitude. Magellan synthetic aperture radar mosaics from the first cycle of Magellan mapping are mapped onto a computer-simulated globe to create this image. Data gaps are filled with Pioneer Venus Orbiter data, or a constant mid-range value. Simulated color is used to enhance small-scale structure. The simulated hues are based on color images recorded by the Soviet Venera 13 and 14 spacecraft. The image was produced by the Solar System Visualization project and the Magellan science team at the JPL Multimission Image Processing Laboratory and is a single frame from a video released at the October 29, 1991, JPL news conference.

Credit:: JPL, NASA

Rufous Hummingbird 褐背蜂鳥 (6/7/2003)
蜂鳥是最細的一類雀鳥，身長多只有5.6-12cm，雄性褐背蜂鳥的體重平均只有3.22g，雌性的只有3.41g，差不多等於一隻戒指的重量。雖然牠那麼細小，但樣子卻很可愛(我覺得)，蜂鳥以吸食花蜜為生，牠們的拍翅速度也是最快，每秒有70次，這樣，就令牠可以活動自如，牠們可以在空中停下來不動，更可以向後飛。

Caption:: Hummingbirds is the smallest bird in the world, their length usually ranges from 5.6 to 12 cm, male Rufous Hummingbirds weight 3.22g and female weight 3.41g. Despite their size is so small, they have wingspan up to 70 times per second, which allow them to keep stationary in the air or fly backwards.

Credit:: Mike Anich

Bubble Nebula 氣泡星雲 (5/7/2003)
今次介紹的又是一個星雲，這個星雲叫氣泡星雲，位於仙后座，是一個發射星雲。星雲也有分好幾類，其中一種就是呈紅色的發射星雲。這種星雲是會自己發光的，舉例，就如這個星雲，看到的星雲是於中間年幼的恆星所發出的氣體與周圍的氣體相撞時發光。

Caption:: NGC 7635, the Bubble Nebula, is a glowing shell of ionized gas surrounding a very hot and massive young star. This remarkable structure is created by the collision of a fast wind of ionized gas originating from the young star with diffuse interstellar matter remaining from its nascent molecular gas cloud. This material is compressed into a shell and further excites by the intense ultraviolent light emmitted from the new born star, resulting in the glowing bubble seen here.

Credit:: Jean-Charles Cuillandre (CFHT)

Supernova Remnant N 49 超新星殘骸 N49 (4/7/2003)
哈勃的新相，是一個位於大麥哲倫雲的超新星殘骸，叫N49。大質量的恆星死的時候會發生大爆炸，稱之為超新星爆炸，在爆炸的時候，恆星的物質會拋到老遠的方，就是所謂的超新星殘骸，當日子過了幾萬年後，那些原來的物質會慢慢隔入周圍的空間。相中可以見到殘骸有很多條紋，再過多一段日子，這些條紋也會慢慢消失。

Caption:: Resembling the puffs of smoke and sparks from a summer fireworks display in this image from NASA's Hubble Space Telescope, these delicate filaments are actually sheets of debris from a stellar explosion in a neighboring galaxy. Hubble's target was a supernova remnant, denoted LMC N 49, within the Large Magellanic Cloud, a nearby, small companion galaxy to the Milky Way visible from the southern hemisphere. This filamentary material will eventually be recycled into building new generations of stars in the LMC. Our own Sun and planets are constructed from similar debris of supernovae that exploded in the Milky Way billions of years ago.

Credit:: NASA and The Hubble Heritage Team (STScI/AURA)