For a thousand years, mathematicians, philosophers and religious figures have wrestled with the question of whether it’s possible to know once and for all whether there is such a thing as a ‘God’. And if so, what form might ‘He’ take? A series of articles explores humankind's relationship with divinity:

Does God Exist?
An exploration of the question that’s occupied the minds of philosophers and theologians for a thousand years.
Interview: John Polkinghorne
Meet the physicist and priest who was knighted for his contributions to religion and quantum physics.
Heaven On Earth
The notion of the Almighty is one common to people across the globe – but how do beliefs vary?
Book of the Dead
Ancient Egyptians were so convinced there were gods in the afterlife that they carefully prepared to meet them.

Also this issue:

• Biggest ever Q& A section
• Meet the dolphins who use tools
• Spitfire: A winning design 75 years on
• Information theory: the key to the Universe?
plus a brief history of astronomy