Astronomy & Space

Why is the sky blue and not black like space

WHYYYYYYYYY SPACE IS BLACK SO WHY ISNT THE SKY BLACK?-idk-The sky is blue because the molecules in Earths atmosphere scatter light in the shorter yet more direct wavelengths of blue light mostly due t

What color would the sky on Earth look like if the biggest supergiant star that ever exited was the distance

that the Sun is from the Earth, assuming our eyes could handle this much brightness. By this distance I mean the front of the star facing earth to be this distance.-a very light blue almost white, the

How do you find the axis of symmetry without a b term

math-If there is no b term, it is automatically zero.-There is always a b term.Just that sometimes it is zero, so its not written down.-If the be term is 0, people will omit it to save space and time.

Why is it warmer in the northern hemisphere during July

So why is it generally warmer in the northern hemisphere during July rather than during January?-The Earth is tilted on its axis and the northern hemisphere is titled closer to the sun during July, an

When do you think we will find extraterrestrial life in the universe

Its impossible to know, because the universe is vast, and our technology and intelligence can only do so much, but just for the fun of it, how long do you think it will be before we find life in the u

I swear I just saw a UFO.

Yes, I swear to God. I was just laying in my bed and I felt I had to pee. After that, I came outside for no reason. I was looking up the stars and ssudenly a white light just a white light came out fr

Is there life on other planets

I have been open minded to the possibility for a long time. Why not. But some of the programs that I have seen on T.V. in the last year or so has made me a little uneasy. On UFO files the one about th

Question about the depiction of our solar system on the Pioneer Plaque

The Pioneer plaque(s) have the image of the solar system on them. Along with that is the relative distances in binary, right? What exactly do these mean? Like above mercury is says I-I- how does one r

So is everything in the universes made from atoms and subatomic particles

Meanings everything on earth beast and vegetation alike made from atoms. Meaning such things like the star is made from subatomic particles?-Depends.... Yes, everything we are very much aware of con

Has anyone heard of "gravitational micro-lensing"

http://science.nasa.gov/science-news/sci…-Yes. Heres an example of a paper (from 2005) describing the use of the technique to discover a jovian-mass planet orbiting a star about 10,000 light years fr

Does the discovery of "dark flow" suggest that something is tugging on the universe from the outside

Perhaps a parallel universe?Or, is it a fluke?-Ah! The Great Attractor rears its head again! Its been known for more than 70 years, basically from the first projections of the big bang theory, that t

What is the si unit for angular measurement

Radians

Nikon to telescope adapter

Seems that I am becoming more confused the more I read here.. Have purchased a second hand beginners telescope, 60mm - 900mm. Did not have the money at the time to go and buy what I think is called a

Do scientists know how matter and energy came into existence yet

As we piece together the past from the evidence we have, we see very strong evidence that all matter in the universe was packed tightly together once. We absolutely cannot determine anything about wha

Will Doomsday really come on December 12th 2012

I know that Doomsday wont come on that day but still I have a feeling. I have a feeling that Doomsday will still come. What If we were wrong? Can you guys help me and give me your view on Doomsday and