Know What is Space in Astronomy - about SPACE

What is SPACE ?

What do you think about Space..? What are the things that strikes your mind when we're asked this question ?

Everyone has some sort of answers , but all will mean this meaning for the word " SPACE " in Astronomy .

Space is something called " Unlimited Expanse "

Some interesting facts that you may need to know about Space ,

In space, no one can hear you scream. This is because there is no air in space – it is a vaccum. Sound waves cannot travel through a vaccum .

The 'Outer space' begins from about 200 km above the Earth surface, where the shell of air around our planet disappears. With no air to scatter sunlight and produce a blue sky,and hence space appears as a black blanket dotted with stars.

Some says that Space is usually considered as being completely empty.
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                                        Click to view full image.
But according to scientist's its not true.

They Say,

The vast gaps between the stars and planets which are filled with huge amounts of thinly spread gas and dust. Even the emptiest parts of space contain at least a few hundred atoms or molecules per cubic metre.

Space is also filled with many forms of radiation that are dangerous to astronauts. Much of this infrared and ultraviolet radiation comes from the Sun. High energy X-rays, gamma rays and cosmic rays – particles travelling close to the speed of light – arrive from distant star systems.

What is your point of view about SPACE ? Is there any other astro meaning there for Space , do share with us via comments .

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I am a Electronics Engineering Student by profession,n addict to Astronomy n Science n BLogging


Space is just a space.
neither it has its start nor its end. Its spread in 4d (ask yourself whats the 4th dimension)infinity. Some scientist believe we have 12 dimensions...

ya thts wht i'm saying,
n frnd,i know the fact tht SPACE is 4d,
but i didn't hear about this 12 dimensions of space,
How to imagine 12 dimensions...?
I can't..can you..?