Scientists have sent probes to the very edges of our Solar System. But all they have sent back have been images of planets inimical to life.科学家们已经向太阳系的边缘发射了探测器。但他们发回的都是与对生命有害的行星的图像。Over the last 25 years, however, astronomers have discovered thousand...
Though solar wind was discovered within the last century, life on Earth has witnessed the interaction of solar wind for millions of years. For example, those living near the northern and southern poles may have experienced a phenomenon called polar lights. At the north pole, they are known as...
38. In the future, people may live on other planets. “___ exciting possibility!” A.What an B.How an C.What D.How 答案:A。“exciting possibility”是可数名词单数短语,用what修饰,exciting以元音音素开头,加不定冠词an。 39. “___ rapidly technology is advancing in the future!” A.What ...
Pluto and the other minor planets in the outermost reaches of the solar system share similar meteorological conditions. Though information about these distant worlds is limited, observations suggest they have thin, relatively calm atmospheres above fields of nitrogen and methane ice. Temperatures range b...
planets, space laboratory, space station, spacecraft, spacesuit, stars, the moon They're going to travel.They aren't going to see their families.What are you going to do?Are you going to travel in a spacecraft? Yes, we are./ No, we aren't. be going to going to Think logically ...
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would have naturally gravitated toward’s the planet’s core. But given Mars’s small size (and therefore weaker gravity) much of it would also stay up top, mixed with gas and dust. As it was exposed to oxygen, it would gain its famous reddish color. So if you win...
planets10. An alternative hypothesis, however, is that dune growth just slows logarithmically with time, as dunes grow larger and their migration rates diminish6. As real dune fields evolve over century and longer timescales, additional site-specific boundary conditions have been suggested to exert ...
This work reviews factors which are important for the evolution of habitable Earth-like planets such as the effects of the host star dependent radiation an
have a tendency to do(for)sthg.倾向于做…… When we are under stress our bodies tend to tense up.当我们处在压力之下时,我们的身体往往会绷紧。 Obese people tend to have higher blood pressure than lean people.肥胖的人往往比瘦人血压...