If you’re like me, perhaps you’ve visited a contemporary art installation, seen a painting of a single plain square or a giant sculpture of a fork, and wondered, how on Earth is this art? I’ll bet you ...

This definition works pretty well here on Earth (although there are some important exceptions, such as viruses), but experts have pointed out that if life exists elsewhere in the universe, it may not ...

Peter Ellerton does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...