alone in the universe? To begin to understand what makes a planet habitable, and thus where to look for life both within and outside of Earth's solar system, scientists need to understand what in planetary formation and what in its subsequent evolution combine to produce a habitable planet.do...
A planet can be classified as either a Rocky Planet (Earth), a Gas Giant (Jupiter), a Dwarf Planet (Eris) or an Extrasolar planet. An extrasolar planet is a planet that orbits a star other than our Sun. Again, an extrasolar planet can be either Rocky, Gas or Dwarf. We have been d...
He explained that his team considers a Kepler planet as potentially habitable if it meets two criteria: (1) its radius is less than 2.5 Earth radii (1.5 Earth radii being conservative), and (2) the planet's orbit is within the optimistic HZ, calculated based on the particular star’s pro...
Brace LH, Theis RF, Hoegy WR (1982) Plasma clouds above the ionopause of Venus and their implications. Planet Space Sci 30: 29 ADS Google Scholar Brasier MD, Green OR, Lindsay JF, McLoughlin N, Steele A, Stoakes C (2005) Critical testing of Earth’s oldest putative fossil assemblage...
A. It should be as big as the Earth. B. It should be a gas planet. C. Must be around a planet like the sun. D. It must have liquid water. 相关知识点: 试题来源: 解析 B 宜居行星必须具备固体表面,而气态行星没有固体表面,因此不适合生命存在。选项B描述了宜居行星不应该具备的特征,所以...
"what should we do...我们该怎么做” ,受sh ould影响,这里填do。 82.【答案】 answcr 【解析】 "Stephem Hawing , the famous Britis h, ...not a__ because..."Stephen Hawing认 为我们不应该回答,因为外星人很危险。 所以这里 是回答 answer,受should影响,所以这里填ansue T。 83...
For now, the focus is on locating planets within a host star's so called "habitable zone", a zone that's a certain distance from its star ,because only planets within this zone could conceivably support carbon-based life. 现在,研究的核心是在寄主星所谓的“可居住区”内寻找行星,它通常距离它...
The habitable zone, also known as the “Goldilocks Zone”, is the region around a star where the average temperature on a planet allows for liquid water with which to make porridge. It’s that liquid water that we hunt for not only for our future uses, but as an indicator of where ali...
Earth is the planet of life. Running, crawling or flying, life abounds everywhere.地球是一个满是生命的星球。奔跑着的、爬行着的或飞翔着的，到处都是生命。But for all this beautiful diversity to have proliferated, Earth has had to provide a favourable environment for around four billion years. ...
根据最后一段中 “Additionally, dwarf stars are dim, so the habitable zone lies closer in. If the planet is closer to the star, it's easier for astronomers to detect a transit observation. A close-in planet also has a stronger pull on its star. That makes it easier to detect with the...