- Solaris (rogerebert.com)
The films of Russian director Andrei Tarkovsky are more like environments than entertainments. It’s often said they’re too long, but that’s missing the point: He uses length and depth to slow us down, to edge us out of the velocity of our lives, to enter a zone of reverie and meditation. When he allows a sequence to continue for what seems like an unreasonable length, we have a choice. We can be bored, or we can use the interlude as an opportunity to consolidate what has gone before, and process it in terms of our own reflections.
- 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.