(Stephen Hawking. Stephen Hawking. latimes.com) and it was Stephen Hawking who established "the existence of cosmological singularities such as the big bang" (Singularity Theorems, https://www.personal.soton.ac.uk/dij/GR-Explorer/singularities/singtheorems.htm). Stephen Hawking). "Free of my wheelchair""It was wonderful to float weightless free of my wheelchair" (Stephen Hawking, from StarTalk with Neil deGrasse Tyson and Stephen Hawking describing his experience on a zero-gravity flight in 2007, https://youtu.be/TwaIQy0VQso?t=767).

Source: Los Angeles Times May 29, 2022 20:01 UTC