“Who are we? We find that we live on an insignificant planet of a humdrum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people.”- Carl Sagan
Now you may wonder how big the universe actually is? Simply put, no one knows the answer. Infact no one even know that our’s is the only universe out there. Now as for how big the known universe is… The deeper we see in space, the more galaxies we discover and there are billions of them. This scenario will set the record straight: The light from the distant galaxies that is reaching the Earth now was set out billions of years ago, even before life existed on Earth.
So why bother about exploring the unknown boundaries? Why does NASA even have to spend trillions for space exploration? The answer lies in the fundamental nature of humans. Space exploration helps us answer about our significance and place in the universe and our history in the solar system. By pushing these boundaries, we expand our technologies, create new industries, foster new relations with other nations and move the humanity forward as a whole.