from the Sun. It is the planet most like the earth, but it is much colder because it is further from the sun.Mars is often called "the red planet" because its rocks are a dark red colour. There are huge ……

system.New red star新发现的矮星Trappist-1 is a red star. It works just like the sun. Its seven planets go...In the solar system (太阳系), Earth and seven other planets (行星) go around the sun. On Feb 22, NASA ……

colorsThey show the planet’s haze (薄雾). They circle around the northern and southern poles.They show the planet’s haze (薄雾). They circle around the northern and southern poles.   ……

of the moons are close to Saturn and take just two years to circle the planet. The other moons take more...土星超越木星成为“卫星王”。Which planet in the solar system (太阳系) is the “king of the moons (卫星)”? The title ……

a 10th.This month, American scientists said that they found a small moon that may be circling a new... in 2003 that Xena was a possible 10th planet. It travels around the sun,reflects(反射) sunlight ……

to a new and exciting level. A team of astronomers said they have found a new planet that has features...南方天文观测台) in La Silla, Chile (智利), the astronomers discovered the new planet two weeks ago. uThe ……

, clean water to drink and warm sunshine to enjoy. But it seems that we may have considered those things natural and haven’t realized that our planet is getting “sick”. Now scientists ……

“好奇”号到达“新家”火星！难度：适中Earth is the third closest planet (星球) to the sun, and Mars (火星) is the fourth... AND XINHUA PHOTOSHave a go1. Mars is the _____ planet from the sun.A. first B. third C. fourth2. Curiosity ……

of 692,018 kilometers per hour as it orbits the sun, setting a new record for the fastest man-made... that have puzzled scientists for decades, but it may also lead to the discovery of new phenomena (现象 ……

, they learned how the moon and Earth circle around the sun.... of them can hold dozens of books. ----------------------------------Learning more about our planet认识 ……

orbits of six objects beyond the Kuiper belt may hint that a ninth planet about 10 times the mass...If Pluto–which was *demoted from planet status to that of “*dwarf planet” in 2006 –had feelings ……

人类或发现宜居星球。 词数 291 建议阅读时间 6分钟 If you have watched the film Avatar (《阿凡达》), you may wonder if Earth is the only habitable (宜居的) planet in the universe. Given the large number of the galaxies (星系), many ……

. Small waveslap(轻拍) at a sandy shore...This may be one scene on the first Earth-like planet... on Earth (0-40c). It means there may be life -- like -- us ?a on the planet.We don't yet know much ……

accurate reading of the dwarf planet’s size.But, New Horizons can. The craft sent back data in recent...Here are some questions you may want to ask about the Pluto mission.Why is the mission such a big ……

Scientists have found a new planet like Earth in the universe, the nearest so far. The planet is named Proxima b. It is 4.2 light-years away from Earth. Like Earth orbits (围绕运行) the sun, Proxima b ……