What is the Big Bang theory in simple terms?
The Big Bang Theory is the leading explanation about how the universe began. At its simplest, it says the universe as we know it started with an infinitely hot, infinitely dense singularity, then inflated over the next 13.8 billion years to the cosmos that we know today.
What are the three main pieces of evidence for the Big Bang?
Three main pieces of evidence for the Big Bang theory are the red-shift of light, cosmic background radiation and types of elements.
What are the characteristics of the universe?
The Universe is everything we can touch, feel, sense, measure or detect. It includes living things, planets, stars, galaxies, dust clouds, light, and even time. Before the birth of the Universe, time, space and matter did not exist.
What makes Big Bang Theory unique?
The universe began, scientists believe, with every speck of its energy jammed into a very tiny point. This extremely dense point exploded with unimaginable force, creating matter and propelling it outward to make the billions of galaxies of our vast universe. Astrophysicists dubbed this titanic explosion the Big Bang.