Earth is our home planet, and it's the only place in the universe where we know for certain that life exists. Earth formed over 4.5 billion years ago from a swirling cloud of gas and dust squished ...

Host Ira Flatow talks with author Dr. Neil Shubin, an evolutionary biologist at the University of Chicago, about some of the wonders found at the ends of the Earth, and the threats they’re facing. IRA ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The narrow ...