Alien planetary system. Computer artwork of an Earth-like moon orbiting a ringed gas giant planet that is orbiting the star at lower right. An alien (or extrasolar) planet has to fit a narrow range of sizes and distances from its star, if it is to have a surface temperature suitable for liquid water, and to retain an atmosphere. The number of other habitable planets in the Milky Way galaxy is not known, but has been estimated at anything between 1 (just Earth) and as many as 10 billion. Many planets have already been discovered orbiting nearby stars.

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Creative#:

TOP10240393

Source:

達志影像

Authorization Type:

RM

Release Information:

須由TPG 完整授權

Model Release:

N/A

Property Release:

N/A

Right to Privacy:

No

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