- Alfred Hitchcock (allthetropes.org)
The acknowledged master of cinematic suspense, “Hitch” is one of the most famous directors of all time. Most people have probably seen one of his films at some time. He was “Sir Alfred” for a brief four months before his death in 1980. He also produced and hosted the television anthology series Alfred Hitchcock Presents from 1955 to 1965, although he only actually directed a handful of the show’s episodes. Many of his films are adaptations of novels or short stories.
- Observable universe (Wikipedia)
The observable universe is a ball-shaped region of the universe comprising all matter that can be observed from Earth or its space-based telescopes and exploratory probes at the present time; the electromagnetic radiation from these objects has had time to reach the Solar System and Earth since the beginning of the cosmological expansion. Initially, it was estimated that there may be 2 trillion galaxies in the observable universe. That number was reduced in 2021 to only several hundred billion based on data from New Horizons. Assuming the universe is isotropic, the distance to the edge of the observable universe is roughly the same in every direction. That is, the observable universe is a spherical region centered on the observer. Every location in the universe has its own observable universe, which may or may not overlap with the one centered on Earth.