Which star is closest to our solar system? A. Sirius B. Proxima Centauri C. Vega D. Betelgeuse 相关知识点: 试题来源: 解析 B。解析:A选项,Sirius(天狼星)是夜空中很亮的恒星,但不是离太阳系最近的恒星。B选项,Proxima Centauri(比邻星)是离太阳系最近的恒星,该选项正确。C选项,Vega(织女星)距离...
This is much closer to the star than Mercury is to our sun. Earth is 93 million miles (150 million km) from the sun. 40,000: The approximate number of years it would take an unmanned spacecraft like NASA's Voyager 1 probe now leaving our solar system to reach Alpha Centauri Bb. ...
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Astronomers have discovered a new black hole, and it's practically in our backyard. Researchers say the black hole is just 1,000 light-years away from Earth — closer to our solar system than any other found to date. 1,000 light-years may seem far away, but on a cosmic scale, it's...
Which planet in our solar system is closest to the sun? Which planet is the sun? 相关知识点: 试题来源: 解析 距离太阳最近的行星是水星。太阳是太阳系的中心恒星,而不是行星。 太阳系中距离太阳最近的行星是水星。太阳是太阳系的中心恒星,它不是行星,而是为太阳系提供光和热的能量源。 反馈 收藏 ...
(D Mercury(水星) is the closest planet to the sun. It doesn't have air. 1 It is a small planet. Mercury is about one-third the size of the Earth. If the earth was the size of a baseball,Mercury would be the size of a golf ball(高尔夫球). Because it is so small, gravity(...
Proxima Centauri is the closest star to the solar system and is home to a potentially habitable planet. Credit: Hubble, European Space Agency The Sun isn’t the only star to produce stellar flares. On April 21, 2021, a team of astronomers published new research descri...
solar flare– n.a short burst of radiation from the sun’s surface swirl– v.to flow or move, like the wind, in the space of a circle cousin– n.something related to another dare– v.to be brave enough to face or do something; to not be too afraid to do something ...
Jupiter is the ___ planet in our solar system. A. largest B. smallest C. closest D. farthest 相关知识点: 试题来源: 解析 A。木星是太阳系中最大的行星,选项 B 最小的,选项 C 最近的,选项 D 最远的,都不符合木星的特征,所以选 A。反馈...
There are many planets in our solar system. The planet closest to the sun is ___. A. Mars B. Earth C. Mercury D. Venus 相关知识点: 试题来源: 解析 C。水星是距离太阳最近的行星。选项 A 火星;选项 B 地球;选项 D 金星都不是距离太阳最近的行星。反馈...