The two would have been almost the same. However, over a period of a few million years ago, Venus lies much closer to the sun than our planet. It has made Venus terribly hot.Since it is closer to the sun, Venus' temperature should be a little warmer than that of the earth. As ...
A. To describe two new theories about the formation of rocky planets B. To discuss competing theories about the formation of gas planets C. To compare the composition of Jupiter, Saturn, Uranus, and Neptune D. To explain why young stars are often surrounded by disks of gas and dust ...
根据Mercury in the morning-December 2部分中 的 and it will appear as a distinct star-like object sandwiched between the star Procyon and the twin stars Castor and Pollux 可知,Mercury(水星)将会出现 在Procyon(南河三)和双子星Castor(北河二)与Pollux(北河三)之间。故选C项。 22. D【解析】细节...
MALE PROFESSOR: Last week we discussed the formation of Earth and the other rocky planets—the planets in the inner solar system.Uh, s-so, what about the gas giants?Jupiter, Saturn, Uranus, and Neptune. Well, there's two theories.But first, let's recap.We believe our solar system began...
Revealing the true nature of the gas giant planets in our Solar System is challenging. The masses of Jupiter and Saturn are about 318 and 95 Earth masses, respectively. While they mostly consist of hydrogen and helium, the total mass and distribution of the heavier elements, which reveal ...
Saturm土星Saturn is a gaseous planet.The other gaseous planets of the solar systemare Jupiter, Neptune and Uranus.The latter two are ice giants and are notconsidered traditional gaseous planets likeSaturn and Jupiter.Saturn's small core is made up of metallic rockand ice.Its outer layer has ...
Last week we discussed the formation of Earth and the other rocky planets—the planets in the inner solar system. Uh, s-so what about the gas giants: Jupiter, Saturn, Uranus, and Neptune? Well, there’s two theories, but first let’s recap. We believe our solar system began as a hug...
Venus 金星 I Venus is the nearest planet to Earth, and in some ways the two planets are similar They are both made of iron and rock and 3 are about the same size. The pull of gravity 4 is about the same on both planets. So if 5 you were standing on Venus, you would weigh ...
Gliese 581 d and e are the planets I wanna focus on now. See, in 2009, a group of researchers made an announcement. These two exoplanets: Gliese 581 d and e do have some Earth-like qualities. Gliese 581 d had actually been discovered a couple of years earlier. And when its orbit wa...