根据第四段的首句“But Kepler’s primary goal was always to determine how common planets like Earth are.”可知,Kepler的首要任务是确定像地球一样的星球是多常见。故选A。【4】主旨大意题。根据第五段中“It took more than half a century for scientists to start pinning down how many planets could...
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Earth-like planets cannot remain habitable if they are too much closer to the Sun than Earth's orbit, because of too high temperatures and loss of water by photodissociation. On the other hand, an Earth-like planet which is too much distant from the Sun would have permanent surface ...
Previous work has shown that the broadband planetary Albedo–the reflectivity of the planet (including an atmosphere) integrated over the entire wavelength spectrum–decreases for simulated planets with Earth-like atmospheres around M-dwarf stars, compared to similar planets orbiting hotter, brighter ...
The evolution of Earth-like habitable planets is a complex process that depends on the geodynamical and geophysical environments. In particular, it is necessary that plate tectonics remain active over billions of years. These geophysically active environments are strongly coupled to a planet's host ...
We find that there was a maximum number of habitable planets around the time of Earth's origin. If at all, interstellar panspermia was most probable at that time and may have kick-started life on our planet. 展开 关键词: Panspermia habitable zone Earth-like planets planet formation star ...
Earth may be the onlyplanetthat we know of that supports life, but that doesn't mean it's the best one for it. A new study, published in the scientific journalAstrobiology, has identified 24 potentially "superhabitable" planets that may have conditions more suited to host life. They could...
Most discussion of habitable planets has focused on Earth-like planets with globally abundant liquid water. For an "aqua planet" like Earth, the surface freezes if far from its sun, and the water vapor greenhouse effect runs away if too close. Here we show that "land planets" (desert world...
CategoriesExtrasolar Planets TagsExtrasolar Planets, HARPS, Kepler 12 Replies to “Scientists Predict Earth-Like Habitable Exoplanet Will Be Found in 2011” Torbjorn Larsson OM September 15, 2010 at 11:21 AM Exciting news! I like the paper, including the habitbility metric which reminds ...
T heEuropean Space Agency's PLAT O space telescope, scheduled to launch in 2026, will focus on finding Earth-like planets orbiting Sun-likestars.【小题1】What makes the newly-found planetspecial?B. Its extremely largeA . Its strange name.size.C. Its potential to hos D . Its relationship...