
中文翻譯:
在遙遠的宇宙中,有一顆名叫Enceladus的小月球,這顆月球的樣子真是令人驚奇!這是一張由Cassini太空船拍攝的照片,顯示了面對土星的Enceladus。這幅照片是在2016年11月拍攝的,拍攝時距離Enceladus約130,000公里。你知道嗎?這顆小月球反射的陽光超過90%,它的表面就像新雪一樣白!雖然Enceladus只大約500公里,就像一個小球,但它可是個非常活躍的月球哦!科學家們在Cassini的探測中發現,這裡有水蒸氣和冰粒子從南極的噴泉噴出,還有證據顯示在它的冰層下有一片神秘的液態水海洋!
原文:
Peering from the shadows, the Saturn-facing hemisphere of tantalizing inner moon Enceladus poses in this Cassini spacecraft image. North is up in the dramatic scene captured during November 2016 as Cassini’s camera was pointed in a nearly sunward direction about 130,000 kilometers from the moon’s bright crescent. In fact, the distant world reflects over 90 percent of the sunlight it receives, giving its surface about the same reflectivity as fresh snow. A mere 500 kilometers in diameter, Enceladus is a surprisingly active moon. Data and images collected during Cassini’s flybys have revealed water vapor and ice grains spewing from south polar geysers and evidence of an ocean of liquid water hidden beneath the moon’s icy crust.
來源:NASA每日圖片


