How big is the universe?
While the entire size of the universe is unknown, scientists have estimated that the universe is approximately 93 billion light-years in diameter.
<START_INST>How big is the universe?<END_INST><START_CTX><END_CTX><START_A>While the entire size of the universe is unknown, scientists have estimated that the universe is approximately 93 billion light-years in diameter.<END_A>