B.researchers know a little about the environment on the newly found planetsC.dwarf stars have long been a popular choice in the hunt for Earth-like planetsD.the size of a planet is the top concern when scientists search for a"second Earth"35.Which of the following can be the best ...
B. A planet exactly like Earth found C. Life discovered on Kepler-186f D. New Earth-size planet found 相关知识点: 试题来源: 解析 1. B 2. A 3. D 【分析】 这是一篇新闻报道。主要讲述了一个国际科研组织的最新发现,在距离地球500光年外的宇宙中发现了一个名为Kepler-186f 与地球各方面很...
The new discovery set the record for the most habitable-zone planets found around a single star. These planets outside our solar system are called exoplanets. NASA says the seven new discoveries are just 40 light years away from earth. The planets were observed by NASA’s Spitzer Telescope. ...
These three planets are believed to be just the tip of the iceberg. “We expect to find tens to hundreds of these evolved transiting planet systems with TESS, providing new details on how planets interact with each other, inflate, and migrate around stars, including those like our Sun,” sa...
B.A planet exactly like Earth foundC.Life discovered on Kepler-186fD.New Earth-size planet found. 试题答案 在线课程 分析 文章内容主要讲述了一个国际科研组织的最新的发现,在距离地球500光年的地方发现了一个名为Kepler-186f 的与地球各方面很相似的行星,以及对它的一些其它发现和研究. 解答 63.B 细节...
3 newly discovered nearby planets are a game changer in the hunt for alien lifeAli Sundermier
A. New Earth-size planet found B. Kepler-186f's orbit C. A NASA planetary scientist D. Planets 相关知识点: 试题来源: 解析 A 【主旨大意】这是一篇说明文。文章主要介绍了一颗新发现的适合生命生存的类似于地球的行星。【解析】本题属于主旨题之最佳标题题,考查理解主旨要义的能力。根据文章结构为总...
That is an essential condition for life as we knowitBut t is not exactly like earth, NASA planetary scientist(行星科学家) Elisa Quintana said via Skype.It's more of an earth's cousin. It's not an earth's twin. I shares the same characteristics as earth, but theirparent stars are ...
the team found that the planets are 30% larger than Jupiter. Observations using the W. M. Keck Observatory on Maunakea also showed that, despite their large sizes, the planets were only half as massive as Jupiter. Remarkably, the two planets are near twins in terms of their orbital periods...
It composes about 18.2 ppm of air by volume (this is about the same as the molecular or mole fraction) and a smaller fraction in Earth's crust. The reason for neon's relative scarcity on Earth and the inner (terrestrial) planets is that neon is highly volatile and forms no compounds ...