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Zackback
Joined: 05 Nov 2010
Location: Kyungbuk
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crisdean
Joined: 04 Feb 2010
Location: Seoul Special City
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 Posted: Sat Jul 07, 2012 5:17 pm Post subject: Re: Our love affair with Mars and our disdain with Venus |
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| Zackback wrote: |
| Why don't people spend more time and money with the planet Venus? I mean it is closer to the earth than Mars. I think there might be some kind of conspiracy about this. |
The Russians actually spent a lot of time and money on the exploration of Venus in the 60's and 70's (look up the Verena missions)
As for today we don't waste money on it probably because Venus is a horribly inhospitable place.
"Venus has an extremely dense atmosphere, which consists mainly of carbon dioxide and a small amount of nitrogen. The atmospheric mass is 93 times that of Earth's atmosphere, while the pressure at the planet's surface is about 92 times that at Earth's surface�a pressure equivalent to that at a depth of nearly 1 kilometer under Earth's oceans. The density at the surface is 65 kg/m� (6.5% that of water). The CO2-rich atmosphere, along with thick clouds of sulfur dioxide, generates the strongest greenhouse effect in the Solar System, creating surface temperatures of over 460 �C (860 �F). ... The surface of Venus is often said to resemble traditional accounts of Hell." from wiki
Also Venus is not always closer to Earth than Mars since all three planets revolve around the Sun at different intervals. |
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Zackback
Joined: 05 Nov 2010
Location: Kyungbuk
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| Posted: Sat Jul 07, 2012 6:04 pm Post subject: |
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Oh ok.
I was surprised to find out that Venus is hotter than Mercury. I thought Mercury would be since it is closer to the sun. |
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matthews_world
Joined: 15 Feb 2003
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| Posted: Sat Jul 07, 2012 8:55 pm Post subject: |
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| disdain 'for' |
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pegasus64128
Joined: 20 Aug 2011
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| Posted: Sun Jul 08, 2012 6:22 am Post subject: Re: Our love affair with Mars and our disdain with Venus |
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The ESA's Venus Express will operate until 2014.
NASA has the Messenger probe orbiting Mercury until 2013.
Venus is only really being studied to understand the runaway greenhouse effect and learn more about the history of the solar system in general. It's the hottest planet in the solar system and is of little practical importance.
Mercury has it's own magnetosphere but goes through huge temperature changes between dayside and nightside. Could be useful if there's enough ice locked up in craters, away from the suns gaze. But it's nestled deeper in the gravity well of the Sun so it's awkward to get to.
Mars is by far the most useful planet for humans to study of the 3.
The moon may be more useful than all of the above.
Aside from our moon, the moons of Jupiter are the most interesting to me. |
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yodanole
Joined: 02 Mar 2003
Location: La Florida
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| Posted: Sun Jul 08, 2012 1:13 pm Post subject: |
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The thick atmosphere of Venus hinders study of the planet.
But that's OK because we already know all that we need to know about Venus.
http://en.wikipedia.org/wiki/Venus_series |
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