STAR AND GALAXIES
i'm a astronaut.I have been serving as an astronaut for 10 years since 2007
where do you know the star form light and heat ???
i want to share to everyone about star and galaxies also the space exploration..
star is a body of gas that gives off a tremendous amount in radiant energy in the form of light and heat
galaxies sprawling space systems composed of dust, gas, and countless stars. The number of galaxies cannot be counted—the observable universe alone may contain 100 billion. Some of these distant systems are similar to our own Milky Way galaxy, while others are quite different.
what is light??
a form electromagnetic radiation which is energy that travel in waves electromagnetic radiation is called electromagnetic spectrum
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