TIL I learned about gravastars (aka a gravitational vacuum star), theoretical objects related to black holes. Both are massive & ...

Robert Paxton is one of the world’s foremost scholars of fascism and in his 2004 book The Anatomy of Fascism (Bookshop), he ...

Robert Paxton is one of the world’s foremost scholars of fascism and in his 2004 book The Anatomy of Fascism ( Bookshop ), he defined the term: ...

Even after 60+ years, Lawrence of Arabia is one of the best-looking films out there; this video explores why. I got to see ...

Even after 60+ years, Lawrence of Arabia is one of the best-looking films out there; this video explores why. I got to see Lawrence of Arabia on a big screen last fall and it was stunning — the colors ...

Students and faculty from Columbia University recently held a “25-hour speak-out” in support of academic freedom. Some ...

Students and faculty from Columbia University recently held a “25-hour speak-out” in support of academic freedom. Some of the remarks made during the speak-out are published at Rise Up, Columbia: part ...

Students and faculty from Columbia University recently held a “25-hour speak-out” in support of academic freedom. Some of the remarks made during the speak-out are published at Rise Up, Columbia: part ...

Students and faculty from Columbia University recently held a “25-hour speak-out” in support of academic freedom. Some of the remarks made during the speak-out are published at Rise Up, Columbia: part ...

This is a great data-driven short documentary by Neil Halloran about how smallpox was eradicated from the face of the Earth.

The Hubble Space Telescope was launched into space 35 years ago and in celebration of that milestone, Alan Taylor collected ...