根据第六段第一行“Jupiter is the largest planet in our solar system. It is made of gas.”(木星是我们的太阳系中最大的行星。它由气体组成。)可知B项错误。C项,土星周围的光环由三种东西组成。根据第七段第一行“Saturn is surrounded by bigger rings than any other planet. They are made of ice...
A very long time ago, an asteroid(小行星) might have hit Pluto. So there was a big crater. Scientists found it many years ago. Now they think when the hit took place, it made ice and liquid(液态的) water go into the crater. Finally, the top of the crater became icy, just like...
Revolving around the Sun an average of 3.6 billion miles away, Pluto was first discovered in 1930. It is a rocky body covered in ice with at least five moons, and its orbit is so elongated that at times it is closer to the Sun than Neptune....
The discovery of Eris made all this absolutely inevitable. The witty title of Mike Brown's book is quite illuminative. "How I Killed Pluto, and Why It Had It Coming." The CRUCIAL, completely ignored fact here is that the IAU did not change the designation of Pluto as a planet under its...
The dwarf planet also has 3-kilometre-high mountains made of ice, which must have been built recently. These features together imply that Pluto is geologically active - perhaps because Pluto has somehow warded off the cold better than we thought, leaving it with enough internal heat to drive ...
③Who discovered Pluto?④When was Pluto discovered?⑤Who has more moons going around it? Pluto or Earth?(4)What is the name of the moon going around Pluto discovered in 1930? A. New Horizons. B. Charon C. Sun(5)Pluto is made up mostly of___. A. rock and water ice B. oxygen ...
Scientists are studying Mars for signs of life.Jupiter (木星) is the largest planet in our solar system. It is made of gas.Saturn (土星) is surrounded (围绕) by bigger rings than any other planet.They are made of ice, dust, and rock. It also has more than 80 known moons.Uranus (...
For one , KBO and pluto are made of the same stuff, namely rock and ice. And for most of it's orbit, pluto is in the keper belt.───一方面他们都有同样的东西组成我们叫它岩石冰,另一方面冥王星的大多数的轨道也是K带。 Pluto is so far away from Earth that everything we know about ...
The left lobe of Sputnik Planitia, Pluto's heart-shaped ice plain Pluto might be made of a billion comets squashed together. Its chemical makeup hints that this might be its origin story, and that it may even have once had a liquid ocean. Pluto is chock
Ice Planets (holotype Uranus) Kuiper Belt Planets (holotype Pluto) Dwarf Planets (holotype Ceres) Minor Planets (holotype, first discovered asteroid that is not a dwarf planet) (Or something similar: BTW I saw a similar proposal some time ago in a post on Astromart, so no originality on...