考研的課程

考研英語：雙語閱讀之NASA發(fā)現(xiàn)"超 級地球" 或存在生命篇

The researchers don't know if the super-Earth is rocky like our own planet, but it orbits thestar every 55.7 days and has a temperature of negative 64 degrees Fahrenheit. Anatmosphere could cause it to be warmer.

科學家尚不清楚這顆“超 級地球”是否和地球一樣屬于巖質(zhì)行星，但它的公轉(zhuǎn)周期為55.7天，溫度為零下64華氏度。如果行星上有大氣層，溫度會更高 。

"This is exciting, as this is humanity's first nearby super-Earth that could harbor life -- uncovered with help from TESS, " said Lisa Kaltenegger, study author, associate professor ofastronomy and director of Cornell's Carl Sagan Institute. "With a thick atmosphere, theplanet GJ 357 d could maintain liquid water on its surface like Earth and we could pick outsigns of life with upcoming telescopes soon to be online."

研究報告的撰寫者、天文學副教授、康奈爾大學卡爾·薩根研究所所長莉薩·柯廷安說：“這很令人興奮，因為這是人類在TESS的幫助下發(fā)現(xiàn)的第一顆可能存在生命的近距離‘超 級地球’。如果存在稠密的大氣層，行星GJ357 d可能像地球一樣表面可留存液態(tài)水，我們或許可以過即將上線的望遠鏡找到生命的跡象。