Marcus Chown is the author of the bestselling Quantum Theory Cannot Hurt You, The Never Ending Days of Being Dead and The Magic Furnace. He is the cosmology consultant for New Scientist. He also wrote The Solar System, the bestselling app for iPad, which won the Future Book Award 2011. His most recent work is a collaboration with Dutch science writer Govert Schilling, called Tweeting the Universe, where they attempt to describe the biggest theories in science with just 140 characters.