In 1925, Payne-Gaposchkin became the first person to earn a doctoral degree (PhD) in astronomy from Harvard University. Her doctoral thesis, ‘Stellar Atmospheres: A Contribution to the Observational ...

Rybicki, M. (2025) Black Hole as a Topological Hole in the Fabric of Spacetime. Journal of Modern Physics, 16, 1799-1817. doi ...