article_snippet.sent: Colonisation of Mars in the form of a city, meanwhile, is something that may also be a possibility (right) Venus is known to have an Earth-like band in its atmosphere about 30 miles (50km) above the surface, where some have said its could be possible to place floating space colonies (shown)
article_snippet.sent: Venus, for example, is known to have an Earth-like band in its atmosphere about 30 miles (50km) above the surface, where some have said its could be possible to place floating space colonies.
article_snippet.sent: In fact, in 1985 the Soviet Union sent two balloons into the atmosphere of Venus - Vega 1 and 2 - to provide key evidence for this potentially habitable band.