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23 votes

Is Earth's Atmospheric Thickness Related to Cosmic Ray Radiation?

It won't be (and isn't) zero. To see that, you want the plot on a logarithmic scale. Thus there isn't really a question to answer. The attenuation of cosmic rays will follow some exponential decay ...
ProfRob's user avatar
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4 votes

Carbon dioxide on terrestrial planets

It's very stable. Once created, it takes a lot of work to convert it into something else. Most other organic compounds have greater potential energy and are unstable on geologic timescales. The ...
BowlOfRed's user avatar
  • 2,140
3 votes

Meteor visibility from two locations

In short, it is depended on the height of the meteor and the separation of observers. This is a rough sketch of the situation you are describing. There are 2 observers on Earth with a separation of $\...
Polaris5744's user avatar
2 votes

What stops terrestrial planets from becoming watery gas giants with water vapour atmospheres?

The terrestrial planets formed in their final configurations over the course of a hundred million years or so. The collision that formed the Moon probably occurred about 30-50 million years after the ...
ProfRob's user avatar
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1 vote

Which of the blocked radiation windows will (mostly) open if one where to observe from the surface of Mars, instead of the Earth?

Question 1: From Tokunaga (2000):The major atmospheric absorbers [in the infrared] are H2O [and OH], CO2, N2O, CH4, and O3. Question 2: X- and gamma rays: These would still be strongly attenuated even ...
giardia's user avatar
  • 2,098
1 vote

Can IR sensitive cameras read signals from Venus's surface emissions?

@JamesK's answer is excellent. I just want to add another, more recent observation, with photos. In the case of Venus, does any of it's 800 degree surface temperature generated IR make it through it'...
uhoh's user avatar
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