The universe is truly a vast place, but have you ever asked how big is it? This is one of the fundamental questions to astrophysics, and a question impossible to answer. Still, scientists still try their best in trying to find the answer.
"That may be something that we actually never know," Sarah Gallagher, an astrophysicist at Western University in Ontario, Canada, told Live Science.
But how do scientists solve for the answer to one of the biggest (literally) questions man can ask? They have a few tricks up their sleeve. Unfortunately, even with these tricks, they still can’t answer the question.
Some say that the universe is infinite, while others say that it is finite. Both of them, however, agree on this one: the universe is “really freaking huge.”
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(Image Credit: NASA/ ESA Hubble Space Telescope)