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1 vote

Calculating lunar parallax based on a distance between two objects at certain latitude

I won't work the whole problem for you, but as long as you assume Earth is a sphere, try rewriting the equation using the following diagram. We have a right triangle with the long side = $d - R \cos(\...
uhoh's user avatar
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0 votes

Is there exchange of energy between the solar wind and Earth's core?

If the earth's magnetic field extends into its core then charged particles from the sun bending earth's field will cause a small force in the core as charges in the core respond to a moved field line
DaveTheWave's user avatar
4 votes

What can be learned from viewing the sun on earth during a total eclipse that cannot be studied by spacecraft in orbit?

"is there any way to position a probe so that it constantly experiences totality? Such as in Lagrange point L2 of some planet?" Careful reading of your linked Wikipedia page shows that the ...
Fe2O3's user avatar
  • 141
14 votes

What can be learned from viewing the sun on earth during a total eclipse that cannot be studied by spacecraft in orbit?

It is true that many of the things that we used to use eclipses for can now be done from space, continuously. Eclipses are still important because they are usually much more easily accessible than ...
James K's user avatar
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10 votes

Why is the terminator line not orange-red in photos from space?

It depends how you look at it - literally! I think there is merit to including what ProfRob wrote in his (currently deleted) answer. Sunsets are red when you look towards the sun because thicker air ...
uhoh's user avatar
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19 votes

Why is the terminator line not orange-red in photos from space?

The Earth image in your question is heavily edited. The night lights are much too bright; they can only be seen with highly sensitive sensors from low earth orbit; it's not possible with current ...
gerrit's user avatar
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