Albert Einstein and J. Robert Oppenheimer both feared how nuclear weapons would be used in the future.Corbis/Getty Images Einstein urged Roosevelt to fund uranium research, fearing that Germany would develop an atomic bomb. After the war, the physicist expressed regret about his role in the development of the bomb. His last public act was to … Read more
A newly developed solution to the equations at the heart of Albert Einstein‘s most revolutionary theory suggests that hypothetical stars called “nestars” could be made of stacked gravitational stars, or “gravastars,” like Russian tea dolls, also known as matryoshka dolls. One of the most impressive things about Einstein’s 1915 theory of gravity, general relativity, is … Read more
Jean-Pierre Luminet Without a doubt, black holes are among the most mysterious types of objects in the universe. Scientists understood their existence in the early 20th century in the wake of Albert Einstein’s revolutionary proposals on gravity. It wasn’t until 1964 that scientists even claimed to have observed one, and it wasn’t until 2019 that … Read more
Tom Conti as Albert Einstein and Cillian Murphy as J. Robert Oppenheimer in “Oppenheimer.”Melinda Sue Gordon/Universal Albert Einstein plays an important role in the Christopher Nolan film ‘Oppenheimer’. In reality, Einstein and J. Robert Oppenheimer knew each other, but were not friends until much later. The real Einstein would not have helped Oppenheimer with top … Read more
Black circles distort a dense gas field of stars and galaxies. Scientists have discovered gravitational waves arising from a merger of black holes, suggesting that the resulting black hole has settled into a stable, spherical shape. These waves also show that the combo black hole could be much larger than previously thought. When the gravitational … Read more