BOOKS: Novelist, blogger and UCL scientist Jennifer Rohn hosts a monthly book club at the Royal Institution. Each month, the club pick a work of fiction with a scientific theme (a genre, which Jenny has coined as Lablit, subtly different from sci-fi). Unless you've already read it, or can super-speed-read, you're too late to attend tonight's discussion on The Hungry Tide by Amitov Ghosh, but keep an eye out for future instalments of this book club. (7pm, FREE) There's also a Science Fiction Book Club meetup tonight, though you have to join up to find out where.
SPACE: It's Yuri's Night, the 50th anniversary of that very first human spaceflight. Perhaps a hint of bias here, but the hot seats are upstairs at the Camden Head, where Londonist M@ and comedian Helen Keen present an evening of space-themed variety. Expect comedy, space science, a quiz and an audience 'show and tell'. Get there early as, ironically, space is limited. (8pm, £3).
SPACE: Over at the Institution of Engineering and Technology (Temple Place) a similar event sees space scientist John Zarnecki, film maker Chris Riley and David Williams of the UK Space Agency put the Gagarin flight in historical perspective (6pm, FREE but prebook).
SPACE: Meanwhile, there's a screening of First Orbit, a new film about the original space man, in UCL's Wilkins Building (7pm, FREE).
INFORMATION: Alternatively, join James Gleick at the Royal Society for a history of information. Reprising a (fully booked) RSA talk from the previous evening, Gleick will go right back to the ancient origins of information, 'when every thought and utterance vanished as soon as it was born'. (7pm, FREE)
GEEK: The April get-together of the Geekpub Meetup group takes place in the Slug and Lettuce on Lisle Street. (7PM, FREE)
BOOKS: A live cabaret celebrating the cult author HP Lovecraft's's works of 'cosmic dread' takes place at the Horse Hospital. Expect film clips, readings, a Lovecraft quiz and fan mingling. (8pm, £12 early)
TECH: UCL's museums are the fortunate benefactors of the university's incredible CASA unit, who routinely spit out cool visualisation and object recognition tools like toothpicks from a cowboy's mouth. The Petrie Museum follows in the digital footsteps of the Grant Museum by installing a number of cunning gadgets to help visitors interact with their holdings (Egyptian relics). Come along to an open day to find out how Pharaoh went electric. (1pm-5pm, FREE)
GAMING: The DS London group, for fans of the Nintendo DS, meet at the Angel in the Fields, Thayer Street. (3pm, FREE)