#Stephen Hawking

All articles tagged with "Stephen Hawking"

Roger Penrose, who pointed out that Hawking's prediction of a smooth, low-entropy early universe was less a prediction than an assumption baked in from the start. (CC BY-SA 2.0, Solarflare100 / Wikimedia Commons)

Why the 'no-boundary' universe remains unresolved even decades after Hawking

A new review of the Hartle-Hawking no-boundary proposal argues that the idea remains conceptually attractive but still faces major obstacles, from the lack of a working theory of quantum gravity to predictions that do

Key Takeaways

The no-boundary proposal still lacks support from a finished theory of quantum gravity.
The model’s most probable universe appears somewhat smaller and less inflationary than the observed cosmos.

DT Editorial Team·May 19, 2026·via universetoday.com

A quantum-cosmology classic is back in the spotlight as physicists revisit the universe's beginning

A new Universe Today analysis revisits the Wheeler-DeWitt equation and Stephen Hawking's later arguments to explore whether the question of the universe's beginning may break down at the deepest level.

Key Takeaways

Universe Today revisits the singularity problem and why general relativity fails at the universe's apparent beginning.
The article highlights the Wheeler-DeWitt equation as an early attempt to treat the entire universe as a quantum object.

DT Editorial Team·May 16, 2026·via universetoday.com