Hubble found a Cepheid in the Andromeda Nebula, using its period and brightness to calculate distance. This distance was far beyond our galaxy, proving Andromeda is a separate galaxy.

Located about 2.5 million light-years from Earth, Andromeda, which is also known as Messier 31m has been a focus of the space community for more than a century, with early observations dating back to ...

Paradise Lost: A Biography By Alan Jacobs Princeton University Press 224 pages We may earn a commission when you buy products through the links on our site.

Courtney B. Vance on book bans, protests in Los Angeles, and narrating the audiobook of the biography of W.E.B. Du Bois ...

Laura sits down with award-winning actor Courtney B. Vance to talk about his latest role narrating the new audiobook of “W.E.B. Du Bois: Biography of a Race”. Vance also discusses the rise of ...