Raegan Revord plays Missy Cooper in Young Sheldon. She is the twin sister of Sheldon Cooper and the younger version of the character originally portrayed by Courtney Henggeler in The Big Bang Theory.

Young Sheldon was set to focus on the early life of Sheldon Cooper (Iain Armitage), the break-out character from the sitcom The Big Bang Theory, played by Jim Parsons as an adult in that show.

Here’s how it works. The Big Bang Theory’s Chuck Lorre Gets Real About Making Mistakes With Kaley Cuoco’s Penny Before Realizing Her ‘Brilliance’ I Didn’t Expect The Big Bang Theory’ ...

This giant disk galaxy existed within the first two billion years after the Big Bang, meaning it formed when the universe was just 15% of its current age. It challenges what we know about how ...

The gist of the theory is that, back in the day — well, literally at the beginning of time and space, the “big bang” — the universe went through a brief period of exponentially ...

The universe has been expanding ever since the Big Bang almost 14 billion years ago, and astronomers believe a kind of invisible force called dark energy is making it accelerate faster.

Singer Courtney Love announced she was getting her British citizenship and planned to continue to live in the United Kingdom permanently, in comments criticizing President Donald Trump.