细节理解题;由文章第一句 "A planet more like Earth than any yet discovered has been identified as a potential future home for mankind." 可知,这个星球比以往发现的任何星球更像地球,能够成为将来人类的家园。 故选:B。 4. 【答案】 D 【解析】 主旨大意题;由最后一段 a total of 47 exoplanets and...
1.A 推理判断题.根据文中" Kepler 22 b contains both land and water and has temperatures which average around 22℃.It also contains the right atmosphere to potentially support life."以及" One of the key standards for a planet to be habitable is that it remains roughly the right distance fro...
Kepler 22-b: Earth-like planet confirmeddenker
开普勒-452b（Kepler-452 b，KOI-7016.01）是一颗围绕天鹅座的G型主序星开普勒-452运转的太阳系外行星，距地球约1402光年（430秒差距）。 开普勒太空望远镜对它进行了观测，美国国家航空航天局（NASA）于2015年7月23日宣布了对其的发现。开普勒-452b是发现的第一颗潜在的超级地球岩质行星，在一颗类太阳恒星的适居...
Scientists using NASA’s powerful Kepler telescope have found a planet beyond the solar system that is a close match to Earth. The planet, which is about 60 percent bigger than Earth, is located about 1,400 light years away in the constellation Cygnus, t
Kepler 22b, a planet more like Earth than any yet discovered, has been identified as a potential future home for mankind. Kepler 22b contains both land and water and has temperatures which average around 22℃. It also contains the right atmosphere to potentially support life. It is, however,...
"So if the greenhouse warming were similar on this planet, and it had a surface, its surface temperature would be something like 72 Fahrenheit — a very pleasant temperature here on Earth."Kepler 22b is more than twice as large as Earth. One big caveat is that it may not be rocky, ...
Kepler 22b is more than twice as large as Earth. One big caveat is that it may not be rocky, like Earth is. It could instead be a gas planet like Neptune. If that were the case, prospects for life there would be rather dim. ...
thus earning the designation Kepler-22b. The radiative equilibrium temperature is 262K for a planet in Kepler-22b's orbit. Although there is no evidence that Kepler-22b is a rocky planet, it is the first confirmed planet with a measured radius to orbit in the Habitable Zone of any star oth...