Animals,trees and humans can only _____ on the earth—the other planets in our solar system do not _____ air or water.Do any planets in other galaxies have ______?We don't know about it. 【小题1】 A. else B. oth
Do any planets in other galaxies have10 ? We don't know about it.()1. A. else B. others C. other D. another()2. A. know B. call C.take D.pick()3. A. next to B. before C. out of D. in front of()4. A. years B. hours C. till D. so C. metres D. kilometres(...
While most observed galaxies have spiral arms, not all of them do. The other major class of galaxy is an elliptical, which has neither a disc nor...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...
The dance of star formation, life and stellar death continues in our Milky Way and other galaxies, ensuring that the cosmos remains a dynamic and ever-evolving place. This article was updated in conjunction with AI technology, then fact-checked and edited by a HowStuffWorks editor. starsarranged...
“Many people believe that space is completely empty and that there is nothing between the galaxies. In fact, there is a lot of hydrogen in a state ofplasma, that is, in other words, very strongly heated hydrogen,” the scientist explains. “And our report is about how particles interact...
(土星),Neptune(海王星)andUranus(天王星)areall __6__than the earth,__7__Venus,Marsand Mercury are smaller than the earth.Animals,treesand humans can only __8__on the earth—the other planets in our solar system do not __9__air or water.Do any planets in other galaxies have__10_...
This is long enough for other planets to have intelligen life. The second reason is size. The universe is huge. Take the Hubble Telescope( 哈勃望远镜):it has shown that there are at least 100 billion galaxies( 星系). And our planet, the Milky Way, has at least 100 billion stars. Some...
And when it comes to studying suitably large patches of the universe, cosmologists are very limited indeed: the observable universe is only so big. “If you say, ‘I’m going to study the shapes of galaxies,’ well, lucky you: you have billions and billions of galaxies in the universe....
Despite being so much heavier than their red dwarf cousins, these stars have much shorter life spans: Within only a few million years (which given astronomical time scales might as well be next week) they die. But when massive stars die, they go out in all their glory.Their huge size, ...
3___ No one will have to do housework either.So,people will have more free time and they will be able to enjoy the things they like -sports,for example.Finally,I believe that everyone will be able to travel to the moon,to other planets and perhaps even to other galaxies for a holida...