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you my Friend are a noob
Hubble
Light is a type of energy.Energies do not have a mass or occupy space.
The galaxy MACS0647-JD is 13.3 billion light-years away from the Earth and was visible to the Hubble Space Telescope.
Yes, mirrors do work in outer space! That is because light also travels in space just like on Earth.
One of your premises is incorrect. Stars are visible in outer space. Photographs in outer space sometimes do not show the stars due to other sources of light or the camera type, but you can actually see stars more easily because there is no atmosphere.
No. We can also see into space using infrared and radio wave telescopes, space probes and of course visits by humans.
you my Friend are a noob
The International Space Station (I.S.S)
Many instruments can be used The visible light spectrum cameras Infrared cameras Spectrometers Radar
The source of light in outer space varies. Light can be reflected off from the stars, moons, comets, asteroids and planets.
Hubble
0 Kilograms since there is no gravity in outer space. Except you are near an another star
the great wall of china -sonny
great wall of china
The Great Wall of China
Nothing. That is why they call it outer space. the only things that are out there are stars, rocks, planets and light and darkness