daveman
Diamond Member
But surely even someone as dim as you could tell the difference between night and day on Venus.And if you were standing on the surface of Venus, you couldn't help but notice the big glowy thing in the sky that continually replaces all that lost IR.The vacuum prevents energy escaping by convection or conduction, but not radiation. If you don't have anything absorbing infrared between the surface and space all the infrared radiation emitted from the surface is going to escape straight into space unhindered.
If you were standing on the surface of Venus, I doubt that you could see the sun through the clouds and that atmosphere.