根据文章第二段Earth is the only known planet that stays in a perfect position from our Sun to support water in a liquid state.Astronomers call this perfect distance from a star the "habitable (宜居的)" or "Goldilocks zone".(地球是已知的唯一一颗距离太阳很近的行星,...
They've landed on the moon. They've built habitable space stations that orbit the Earth. The next giant leap for mankind is to reach another planet—specifically, Mars. The problem is that it's no easy task. The planet is 586 times further away from the Earth than th...
planets that orbit too close to or too far away from their stars do not have a suitable climate; this can only be found in a slender strip of solar space around each star known to astronomers as a 'habitable zone'. around our star—the sun—earth is the only planet that occupies this...
Worden told The Associated Press: “I would certainly expect in the next four or five years we’d have an Earth-sized planet in the habitable (可居住的)zone.” 1.What is very important in determining if we are alone in the universe?
Worden told The Associated Press: “I would certainly expect in the next four or five years we’d have an Earth-sized planet in the habitable (可居住的) zone.” 1. What is very important in determining if we are alone in the universe?
7.Tosearchforplanets,thetelescopewilllookforthedimmingofstarlightcausedwhenanobjectpassesinfrontofastar,knownasa"transit".Althoughitwilltakemoresophisticatedspacetelescopesplannedinthenext10yearstoconfirmthepresenceofanEarth-likeplanetwithoxygenandliquidwater,Corotwillletscientistsknowwheretopointtheirlenses. 8.Measure...
suggestion is to limit the search for life-supporting planets to Earth-sized bodies orbiting single, sun-like stars in their habitable zones. I realize this cuts way down on the number of possible candidate planets and there is also the fact that such planets are much much more difficult to...
Artist’s depiction of a waterworld. A new study suggests that Earth is in a minority when it comes to planets, and that most habitable planets may be greater than 90% ocean. Credit: David A. Aguilar (CfA) "Although methane warms our planet, we found that methane actually cools the su...
【推荐1】Scientists say they discovered an earth-like planet orbiting the star closest to our planet other than the sun.It is the closest planet ever found outside our solar system that could support life as we know it.This planet is just 4.2 light years away from us.It is so close tha...
At the very least, he is putting his money where his nose is. Questions 5-9 Complete the sentences below with words from the passage.Use NO MORE THAN THREE WORDS for each answer. 5.The hypothesis that we smell by sensing the molecular vibration was made by ___. 6.Turin's compa...