All Questions
10
questions
16
votes
4
answers
4k
views
Does dusk really remain for a shorter period of time at the equator?
It is said that the dusk remains for shorter time at equator than the poles. Because, the equator rotates faster than poles. But it is also true that time is the same in every latitude, and if it's ...
- 1,070
3
votes
2
answers
222
views
Why doesn' t the sky look blue from outer space? [duplicate]
The sky looks blue because blue sunlight is scattered all over the atmosphere. Doesn't the same take place in the other direction? From Earth to the sky? So the atmosphere would look blue in outer ...
user307209
2
votes
3
answers
350
views
Is there a difference between the red sky in the morning and in the evening?
It certainly has a different feeling to it, but
does the temperature or earth's rotation or the clouds
or anything else really make it two different physical
phenomena or at least different colors?
...
- 185
3
votes
1
answer
1k
views
How much does temperature affect the time of sunrise?
Please forgive me if this is a dumb question, or if my understanding of basic physics is wrong. Please feel free to correct me.
As I understand it, if the Earth didn't have any atmosphere, then the ...
- 133
3
votes
1
answer
7k
views
What causes the perceived intensity of the sun to change on a short timescale?
I was inspired by this question to ask, what causes the "beating down" feeling of the sun to vary day to day? While the linked post explains why the sun feels hotter in the summer than in the winter, ...
- 3,710
1
vote
0
answers
1k
views
What is this bright spot in the sky?
I took this picture a few minutes ago (35 minutes ago, currently 1828 here)
As you can see there's a VERY bright spot on the right that shows a spectrum on the one side.
I am pretty confident it's ...
- 832
5
votes
2
answers
7k
views
Why does the Sun turn red near sunset?
At daytime the Sun's light is yellowish if not near white. Why when the Sun starts to go down that it's light turn more red. I don't think the earth's rotation is so rapid to cause a red shift.
Why ...
- 347
4
votes
2
answers
1k
views
Attenuation mass-thickness for sunset light
We are able to look directly at the sun near sunset and sunrise, which clearly demonstrates the fact that our atmosphere attenuates visible light. Let's imagine it follows the typical attenuation ...
- 21.1k
9
votes
2
answers
18k
views
Why does the Sun "shine brighter" some days? [duplicate]
Today, the Sun seems extremely bright; more dazzling than usual, and even the roads seem to be brighter so it's not just when you look up in the sky. Is more light actually getting through (perhaps ...
- 605
11
votes
3
answers
1k
views
How are the northern lights produced?
Although I've never seen it myself, I hear the northern lights are a sight to be seen! I know they're related to the Earth's magnetic field but I don't know much more about them. What is the physical ...
- 1,397