Konkel, Frank
Kepler is a space observatory launched by NASA to discover Earth-like planets orbiting other stars. Currently, it has found almost 1000 Earth-like planets. 之前由开普勒太空望远镜发现的类地行星 [图片:百度] 而这次新发现的重要之处在于这颗行星也许是目前为止与地球最为相似的一颗。NASA的这条消息一发出...
In a rare negative response to a scientific discovery, the Chinese Internet fell into deep melancholy at NASA's announcement that it had found an Earth-like planet, Kepler-452b.While exciting scientific discoveries might be met with bewildered indifference from Penny of the hugely popular TV ...
Traveling about 24 billion kilometers from Earth, Voyager 1 is the most distant spacecraft from our planet. It takes 22 and a half hours to send a signal to the probe. 旅行者一号距离地球约240亿公里,是距离地球最远的飞船。...
In December 2011, two planets similar to the Earth were found - the Kepler-20e and the Kepler-22b. Kepler-20e, smaller than the Earth, orbits a Sun-like star slightly cooler and smaller than the Sun. But the surface temperature on the planet reaches 726 degrees Celsius, making the existen...
star like the Sun. NASA has announced a major find of an Earth-like planet orbiting a star like the Sun.NASA has announced a major find of an Earth-like planet orbiting a star like the Sun.ALISON HARMELIN
NASA has recently found a twin Earth in the Milky Way.Scientists said the planet was the closest to Earth that has been seen.Kepler 452b,which has been named Earth 2,is six billion years old.It has a 385-day year and orbits its star at the same distance as us.It is so like Earth...
分析句子结构可知,“ has been named Earth 2.0”为定语从句,先行词是 Kepler 452b,且从句中缺少主语,所以引导词选用 which。句意:被命名为地球2.0的开普勒452b已经有60亿年的历史了。故答案为:which。like 解析:考查介词。结合句意可知,此处指“它和地球是如此像”,所以橫线处需要填入介词 like,表示“像”。句...
on Monday in the journal The Astrophysical Journal Letters reported the Earth-sized planet called HD 21749c that takes eight days to orbit its host star. The host star of those two planets has about 80 percent of the mass of the Sun and is about 53 light-years distant from Earth. ...
Since NASA (美国国家航空航天局)announced the discovery of TRAPPIST-1, a dwarf star, and its system in February, astronomers and scientists have considered it as among the likeliest systems for finding life outside our solar system. Scientists thought the TRAPPIST-1 system was at least 500 mill...