- Galaxy filament (Wikipedia)
In cosmology, galaxy filaments are the largest known structures in the universe, consisting of ‘walls’ of gravitationally bound galactic superclusters. These massive, thread-like formations can reach 80 megaparsecs h−1 (or of the order of 160 to 260 million light-years) and form the boundaries between voids. Galaxy filaments form the cosmic web and define the overall structure of the observable universe.
- The Marriage of Heaven and Hell (Wikipedia)
The Marriage of Heaven and Hell is a book by the English poet and printmaker William Blake. It is a series of texts written in imitation of biblical prophecy but expressing Blake’s own intensely personal Romantic and revolutionary beliefs. Like his other books, it was published as printed sheets from etched plates containing prose, poetry, and illustrations. The plates were then coloured by Blake and his wife Catherine.