I write, speak, and consult on a range of historical topics.

• Earthrise: the first views of Earth from space, and the environment
• ’2001′ and the space age
• The search for extraterrestrial intelligence – an unlikely history
• The ‘Peterloo massacre’, Manchester 1819
• The trial of the Lancashire witches, 1612
• ’Give us our eleven days!’ The English calendar reform of 1752.