Mars is ingrained in our culture, from David Bowie's extra-terrestrial spiders to H.G. Wells's The War of the Worlds. The red planet has inspired hundreds of scientists, authors and filmmakers - but why? What is it about this particular planet that makes it so intriguing? In 4th Rock from the Sun, Nicky Jenner reviews Mars in its entirety, exploring its nature and attributes - everything you need to know about the Red Planet. Is there a future for humanity on Mars?