Earth Sciences 1086F/G Lecture 10: Unit 3.5_Venus
4 Apr 2016
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Often called the evening star or the morning star because it is most visible late evening or. Brightest thing in the sky besides moon! Even though it is bright, cannot view through a telescope because surface is not solid! Instead we are looking at the top level of gas which never clears! Due to its density and mass, often called earth"s twin! During the last few decades, we have been able to look at the surface using radar 23! Surface is drier than any earth desert and twice as hot as a hot kitchen oven: 450 deg. celsius, 1250 psi pressure! Usa and ussr had fought to win the space race to venus, soviets won: after ussr ceased to exist, they had 15 successful missions (10 landings) on venus! Usa missions: most were only y-bys, before 2005 best images came from magellan, rst object launched from space probe in 1989, spent 4 years in venus"s orbit!
