结果1 题目 18. Why is Venus an "unfriendly" planet? C A. It's the nearest planet to us. B. It's almost the same size as the earth. C. People can't see it clearly from the outside D. Anything can't live there. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏 ...
Why does Venus not have a strong magnetic field? Why is Uranus called the sideways planet? Why is the Sun fourth in the Ptolemaic planetary system? Why do planets orbit the sun? If you are facing north and the Moon is directly behind you over the southern horizon,...
Our planetary neighbor Venus becomes a brilliant beacon in the sky each time it reaches its greatest orbital distance from the sun If you’ve ventured outside after sunset recently and happened to glance to the west, you may have noticed an astonishingly
Launched 40 years ago, the Voyager space probes are on a grand tour of the cosmos that nearly ended at Saturn.
Why are the Jovian planets different colors? Jovian Planets: Our solar system consists of planets that are categorize in two groups, the terrestrial planets which have Mercury, Venus, Earth, Mars, whereas the other group is Jovian planets having larger planets like Jupiter, Saturn, Uranus, Neptun...
Hot, inhospitable Venus is the brightest planet in our skies and filled with puzzles that we have only started to put together.
The moonlessness of Mercury and Venus is mostly attributed to their proximity to the sun. Being so close to the sun means that they are not only exposed to a lot of solar radiation but also experience an intense gravitational pull from the Sun.
1. Why is Pluto called a dwarf planet? Because it orbits the sun Because it is mostly round in shape Because it is small and doesn't clear its orbit of frozen junk Because it is far from the sun 2. What newly discovered dwarf planet led to Pluto's reclassification as a dwarf plane...
What is a planet, anyway? The word planet (in English) stretches back to antiquity, deriving from the Greek word "planetes," which means "wandering star." The five classical planets —Mercury,Venus, Mars, Jupiter andSaturn— are visible to the naked eye and can be seen shifting in strange...
But Venus lost its water-due to what's called a“runaway greenhouse effect”.Water vapor is a strong greenhouse gas-in other words, it traps heat.Water vapor may have caused Venus to heat up-which increased evaporation(蒸发)on the planet's surface-which increased warming even further.It ev...