The science book says "Mars is farther
from the sun than Earth. For this
reason, Mars receives less energy from
the sun than does Earth." but the astronomy own numbers have Venus being around 864F degrees and mercury 800 F. Some try to excuse it by saying There is a greenhouse atmosphere on Venus?
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answers:
Acetek say: The Universe is under no obligation to be understood by you.-- Neil Degrase-tyson
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Adam D say: Earth has a definite greenhouse effect, there has been no evidence to the contrary.
You can easily observe the greenhouse effect locally. When there is cloud cover, you'll notice that the temperature stays higher into the night than it does on clear nights.
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Elaine say: What happens to the nighttime temperature when our nighttime skies are clear? Then compare those temperatures to those when the nighttime skies are extremely cloudy and overcast. Mercury has no atmosphere so the heat escapes. Venus has a thick dense atmosphere composed of carbon dioxide and other gases which keep the heat from escaping into space. Have you ever been in a greenhouse? Ask yourself why greenhouses are used in the more northern latitudes to grow subtropical fruits and vegetables. There has to be a reason why the inside temperature of a greenhouse is much warmer than the outside temperature.
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Jeffrey K say: Yes, Venus is hotter than Mercury, even though Mercury is closer to the sun. Mercury has no atmosphere to hold the heat but Venus has a very thick carbon dioxide atmosphere. This makes a run away greenhouse effect on Venus, making it much hitter than it would otherwise have been.
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Choose a bloody best answer. It's not hard. say: Read the profile folks, then sigh, then go back to enjoying the weekend.
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CarolOklaNola say: Venus' atmosphere is 96.5 % carbon dioxide. Venus is covered in clouds. Infrared and microwave radiation from the surface is reflected and scattered back toward the ground, heating up the surface more. Mercury has no atmosphere to scatter and reflect heat back toward the ground.
The same thing happened s on Earth on overcast nights. The minimum temperature is usually higher a d often the relative humidity is higher. Water vapor is more effective green house gas than carbon dioxide.
Anyone who claims there is special pleading is ignoring the e Biden e and the fa ts for the sake of provoking and continuing an endless, pointless argument that wastes scientists' time feeding the egos of the immature emotional parasites. You can stay ignorance and paranoid in your own personal mental hells.
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skeptik say: Why would that be "special pleading?"
Mars is farther away from the sun than Earth is, and gets less energy from it.
As a result, EVEN IF it had a similar atmosphere, it would still be colder on average.
Venus is closer than either Earth or Mars, AND has a much thicker atmosphere.
As a result, it has a much higher temperature than either.
Mercury is closest of all, but has essentially no atmosphere - so there is nothing to trap the heat that it gets, and it's cooler than Venus. But not by much.
If none of the rocky planets had atmospheres, their average surface temperatures would be directly proportional to their distance from the sun. But they do, so it isn't.
Are you really as stupid as you make yourself out to be?
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sepia say: https://nineplanets.org/venus.html
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Nyx say: Venus has a dense (some 90 times that of Earth), thick atmosphere of CO2. And yes, it is from runaway greenhouse effect. The sun's infrared energy is coming in, but is reflected back to the surface. So the heat has little chance to escape. On top of that, Venus has a high concentration of sulfuric acid.
http://hyperphysics.phy-astr.gsu.edu/hba...
https://www.universetoday.com/22551/venu...
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