Mother Earth, Gaia, the third rock from the Sun - whatever you call it, this 4.5 billion-year-old planet is the one that we and all known living creatures call home.

Ian is a motivational psychologist and author, based at Loughborough University.

The internet has become the foundation of modern day society, but was invented not long ago in the 1970s, and has evolved a lot since then. This global network infrastructure connections computers ...

Iseult is a professor of environmental nanomaterials at the University of Birmingham.

Will is a PhD student at the University of Manchester, studying fossil fish.

Nate is a writer based in Washington State, in the US, who covers science, health and the environment for numerous publications.