Space

Seen from space the most striking feature of the Earth is the predominance of white clouds in its atmosphere.

At any one time about half of the planet is shrouded in these white vortices. The clouds indicate humidity in the troposphere, 5 to 10km above the Earth's surface.

The large amount of water covering the planet is also very much in evidence, giving it a blue appearance in the gaps of cloud.

1	Age of the Universe	earthfacts.net	146
2	Big Bang	earthfacts.net	213
3	Comets	earthfacts.net	74
4	Cosmic Rays and the Van Allen Radiation Belts	earthfacts.net	96
5	Earth is Not That Huge	earthfacts.net	577
6	Earth's Orbit	earthfacts.net	709
7	Earth’s Galaxy, the Milky Way	earthfacts.net	265
8	Earth’s Moon	earthfacts.net	255
9	Earth’s Solar System	earthfacts.net	333
10	Facts About The Sun	earthfacts.net	740
11	First Image of the Earth from the Moon	earthfacts.net	550
12	How Many People Have Walked on the Moon?	earthfacts.net	478
13	How Scientists Measure Star Distances	earthfacts.net	161
14	Local Group of Galaxies	earthfacts.net	101
15	Manmade Objects Visible From Space	earthfacts.net	265
16	Meteor Dust on Earth	earthfacts.net	322
17	Moon Moving Away From Earth	earthfacts.net	486
18	Oceanography from Space	earthfacts.net	81
19	Orbits of Artificial Satellites	earthfacts.net	62
20	Protoplanet Theory and Earth’s Formation	earthfacts.net	270
21	Satellites in Geology	earthfacts.net	62
22	The Galactic Year: A Trip Around the Galaxy	earthfacts.net	437

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