What are we part of that is roughly 93 billion light years in diameter and expanding?
The universe.
In his new book "Your Place in the Universe: Understanding Our Big, Messy Existence," Ohio State astrophysicist Paul Sutter breaks down the vastness for earthlings.
Today on All Sides, our place in the universe with Paul Sutter.
Guests
Paul Sutter, astrophysicist at Ohio State University, chief scientist at COSI, author of "Your Place in the Universe: Understanding Our Big, Messy Existence"