1. In our solar system eight planets go aroun d the sun. What are土星: Saturn, 以罗马神话中的
What Is the Moon Made of ? galaxies other than our own can thus beBasis, Scientific
Our star, 'The Sun', is one of many billions of other stars that make up the Milky Way Galaxy. Our Milky Way is one of many billions of galaxies that make up the physical part of the Universe. Galaxies also contain comets, asteroids, nebulas, planets etc Most galaxies are moving aw...
A. It's one of billions of stars. B. It's one of billions of other galaxies. C. It is a huge island of light. D. It is a world like ours.3. What are the main functions of the Hubble Space Telescope? A. Taking pictures of the earth beyond the earth. B. Working out the ...
It was only with the work of Hubble using Leavitt’s law to measure distances to Magellanic clouds and “spiral nebulae” (that we now know to be other galaxies), building on earlier work of Leavitt and Hertzsprung, that it was conclusively established that these clouds and nebulae in fact ...
But so far, we haven't d 5 life on other planets.because none of them has an e_ 6 like the earth. Scientists have also foun d many other galaxies an d they are very f_ 7_ away. No spaceship has r 8_ them. Is there any life beyond(在… …以外) the s_9_ system? I think...
Surrounding the galaxy for thousand and thousand of light years is space.At great distances,however,billions of other galaxies are scattered.These galaxies are of many shapes and sizes.The Milky Way Galaxy is shaped like a spiral(螺旋型)disk.Other galaxies have been found to be shaped like ...
Galaxies What is a galaxy? How many stars are there in an average galaxy? About how many galaxies are there in the universe? What is the name of our galaxy? Galaxy Gravitationally bound stars, gas, dust, neutron stars, black holes, etc. Billions of stars in a galaxy and billions of ga...
A. It's one of billions of stars. B. It's one of billions of other galaxies. C. It is a huge island of light. D. It is a world like ours.3. What are the main functions of the Hubble SpaceTelescope? A. Taking pictures of the earth beyond the earth. B. Working out the age...
It was only with the work of Hubble using Leavitt’s law to measure distances to Magellanic clouds and “spiral nebulae” (that we now know to be other galaxies), building on earlier work of Leavitt and Hertzsprung, that it was conclusively established that these clouds and nebulae in fact ...