The sunlight is not visible in the space because there is no particles in space to scatter and reflect the sunlight. Am I right?
Güneş ışınları uzayda farklı radyoaktif ışınlar şeklinde görülebilir. Güneş ışınlarının en fazla %2'si dünyaya ulaşır. Bu ışınların bir kısmı atmosferde kaybolur veya emilir. Geriye kalan kısmı uzaya yayılır ve farklı oluşumlar meydana gelir. Uzaya yayılan diğer ışınlar iletişim ve haberleşmede kullanılabilir.
I think you have it right, but you stated it a little strangely. Yes the sky looks dark because there are no particles to scatter the sunlight back towards your eye. I think that is the main point you are making.
However, it is not quite right to say sunlight isn’t visible in space. I think the more proper way to think of it is that light travels in straight lines. If you look towards the sun you will certainly see it. The light travels directly from the sun to your eye and you see the sun (much clearer sharper and brighter than looking at the sun through earth’s atmosphere). Similarly, if there is something to scatter the sunlight, for example the space shuttle, light travels directly from the sun to the space shuttle where it scatters off the surfaces and then some of it travels directly to your eye and you see the space shuttle (again, brighter and sharper than looking at it through atmosphere).
Looking in a direction where there is nothing to scatter the light, sunlight is passing through that empty space you are looking at, but it isn’t traveling toward your eye. With nothing to scatter it, it continues traveling in a straight line away from the sun, never being redirected back towards your eyes, so you don’t see it. No light is coming to you from that direction and so the sky looks dark.
A bright object like the sun is
visible
The ray theory of light is a good
first approx.