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 ...

The origin of life on Earth stands as one of the great mysteries of science. Various answers have been proposed ... Urey experiment that suggested how the building blocks of life could form in a ...

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 ...

Related: How big is Earth? We asked Simon Lock is a research fellow in the School of Earth Sciences at the University of Bristol who specializes in planetary science, astrophysics, geophysics ...