这里 “send the astronauts to the moon”(把宇航员送到月球)是科学家努力工作的目的,表目的要用动词不定式 “to do” 形式,所以填 “To send” ,句首单词首字母大写。综上,答案依次为:11. planets;12. yet;13. months;14. made;15. To send 。
How many planets are there in the solar system? 2005年,阋神星的发现引发了巨大争议。其发现者之一、天文学家迈克·布朗(Mike Brown)在NASA的官方新闻材料中将其称为“第十颗行星”。当时,阋神星被认为略大于冥王星,因此如果冥王星被视为行星,阋神星似乎也应享有这一身份。即使后续观测表明阋神星比冥王星...
Io, the third-largest moon of Jupiter, is the most volcanically active body in the solar system. “The eruptions are so big that we can actually see them from telescopes based on Earth,” says Dan Spencer, formerly a PhD student at the University of Oxford. “If Io swapped places with...
So far, human beings have sent many spacecrafs in space and we will know much more of Venus in the near future.( ) 6. What is Venus like? A. It's bigger and heavier than the Earth. B. It's smaller and lighter than the Moon. C. It's smaller and lighter than the Earth. D....
—How many humans could the moon support? —How long would it take to walk around the moon? Some space objects, such as asteroid 2010 TK7, earn the title of "moon" because they get caught in the unique gravity of the sun-Earth or Earth-moon systems. The gravity of the two larger ...
The many moons of Jupiter travel around the planet in different directions.Jupiter is the largest planet in our solar system. Over the years, scientists have found that Jupiter has its own small solar sys tem. Earth has one moon. Jupiter has at least sixteen and probably more....
Of course before people actually thought of the Earth as a planet, the "Classical Planets" used for astrology included the Sun and the Moon... so you might say that we had 7 planets (i.e. The Sun, Moon, Mercury, Venus, Mars, Jupiter and Saturn)....
How many moons would fit in the earth? The Moon: The moon is Earth's only natural satellite. It orbits the Earth once every 27.3 days. The rocks on the moon are similar to rocks on the Earth. There are various theories explaining how the moon came into existence. ...
The answer to the question in the first paragraph: 1.321 Earths coul d fit inside a jar the same size as Jupiter.61. Which planet in our solar system weighs the most?( ) A. Mars B. The earth C. The moon D. Jupiter.62. How many moons are there traveling aroun d Jupiter?( ) A...
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