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Halcyon actively monitors change covering more than 150 key elements of life.

The 52:52:52 project, launching both on this site and on social media in early 2024 will help you address 52 issues with 52 responses over 52 weeks.

A Mundane Comedy is Dominic Kelleher's new book, which will be published in early 2024. The introduction is available here and further extracts will appear on this site in the coming months.

Planets

On the Universe Halcyon In Kal… 13 May 2016

Imagine our universe as only one of an infinite number of possible universes - be they "Quilted", "Brane" or, most strangely of all, "Ultimate". Brian Green tackled this almost mystical idea head-on in The Hidden Reality: Parallel Universes and the Deep Laws of the Cosmos. Greene discussed his ideas further during a March 2011 edition of Start the Week.

Imagine too flying through the universe. This animated flight through the universe shows close to 400,000 galaxies, and was derived at John Hopkins University from the Sloan Digital Sky Survey.

Another video meanwhile takes viewers from the Himalayas through our atmosphere and the inky black of space to the afterglow of the Big Bang.