Stephen Hawking
Stephen William Hawking is an English theoretical physicist, cosmologist, author and Director of Research at the Centre for Theoretical Cosmology within the University of Cambridge. His scientific works include a collaboration with Roger Penrose on gravitational singularity theorems in the framework of general relativity and the theoretical prediction that black holes emit radiation, often called Hawking radiation. Hawking was the first to set out a theory of cosmology explained by a union of […]
Alexei Leonov
On 18 March, 1965, Alexei Leonov became the first human to conduct a space walk. This historic event occurred on the Voskhod 2 flight. He was outside the spacecraft for 12 minutes and nine seconds connected to the craft by a 5.35 meter tether. At the end of the spacewalk, his spacesuit had inflated in […]