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The sky on earth is lit by the sun during the day. The sunlight hitting the atmosphere illuminates it. When the sun is below the horizon, after it sets, the part of the sky it illuminates gets smaller and smaller until its effect is no longer seen. This darkening time is called twilight until it is totally dark and becomes night.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoFor more details about this, search Wikipedia, or the internet, for "Olber's paradox". Briefly, the modern explanation is that the Universe is finite, it only has a finite age, and the expansion of space makes the light from distance objects lose some energy.
Wiki User
∙ 12y agoBecause the sun is not lighting up the atmosphere; when the atmosphere is not lit up, it is transparent, revealing the dark matter and stars in space.
Wiki User
∙ 13y agoPeople on earth are only able to see stars that are up to 15 billion light years away. The light from billions of stars has not yet reached the earth.
Wiki User
∙ 12y agoBecause the earth has rotated, blocking your view of the sun.
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Do the dark reactions occur in the thylakoids?
A dark reaction is done in the Calvin Cycle. Light is not needed at the time of the dark reaction but it also doesn't hinder the reaction if there is light at the time.So in short. Yes.
What do you call the area outside the earth's atmosphere?
Space. More precisely, Outer Space.Reason: That's all there is, at least on this dimensional plane. In another dimension, dark matter is outside the Earth's atmosphere.
Where is the best place to view meteors in the night sky?
-- Outside -- In a dark place far from city lights -- In a place where the sky is clear -- After midnight
Why can't the so called dark matter be directly observed?
We know that dark matter exists because it got gravity, though it is invisible. It hold galaxy and Universes. There is a theory there many other parallel universe outside our universe and dark matter holds those universe up and some scientists says that dark matter are just mass of the matter of the parallel universe. It sounds crazy but that is the Law of Physics. However there is not exact explanation of what dark matter really is, so there are still Noble Prices for those who can come up with a reasonable explanation.
Dark nipples and a dark line?
dark nipples" and a "dark line" occurs during preganancy
Reading that it is dark outside and inferring that it is night is an inference of?
Reading that it is "dark outside" and inferring that it is night is an inference of _____.wer here...
When can you see a constellation?
when its dark outside
Do plants grow fastest in the dark or artificial light or outside?
outside
How do you complete level 9 on 100 Floors?
You match the rings with the bolts. Look carefully at the bolts, there is an inside and outside color... dark or light. If the bolt in the corresponding color is dark on the inside and dark on the outside, then tap the ring on the door until it looks the same as the bolt. Do this with all four bolt-ring combinations, and the doors will open. Just in case it is hard to tell: Upper left bolt is Dark-inside, Dark outside Upper right is Light-inside, Light outside Lower left is Light-inside, Dark outside Lower Right is Dark-inside, Light outside.
How do you do level 9 on 100 Floors?
You match the rings with the bolts. Look carefully at the bolts, there is an inside and outside color... dark or light. If the bolt in the corresponding color is dark on the inside and dark on the outside, then tap the ring on the door until it looks the same as the bolt. Do this with all four bolt-ring combinations, and the doors will open. Just in case it is hard to tell: Upper left bolt is Dark-inside, Dark outside Upper right is Light-inside, Light outside Lower left is Light-inside, Dark outside Lower Right is Dark-inside, Light outside.
When it is dark outside does that mean it is nightime?
YES.
How do you use the word dark in a sentence?
"As i went outside to take out the trash, everything was dark."
Do plants grow fastest in dark places or outside?
They need sunlight to grow...outside.
What is the subject in the sentence you cook outside until dark?
You is the subject in that sentence. The subject is whois performing the action.
Why is there more traffic accidents at night?
It is dark outside.
How do you get a dark tan outside with out burrning?
you can soak in mayonayse
Why does it get dark outside?
because the sun is blocked out by the earth.
