Difficult and enigmatic: Fritz Zwicky feuded with many leading scientists of his day. He is shown here at the California Institute of Technology in 1931. Front row (from left): Robert Oppenheimer, ...

Though Fritz Zwicky is not well known to the public today, astronomers around the world, decades after his death in 1974, still gleefully gossip about his infamous professional battles and ...

Swiss astrophysicist Fritz Zwicky was the first to propose the idea of dark matter in 1933.

"The existence of dark matter had been proposed by Swiss astrophysicist Fritz Zwicky in the 1930s, but hadn't been confirmed until Rubin's work," reported NPR.

But first, some facts. Fritz Zwicky was born on February 14, 1898, in Varna, Bulgaria, to a Swiss merchant and his Czech wife. When Zwicky was 6 his father sent him to Glarus, the Zwicky clan’s ...

Representation matters. Meet five stellar women in physics who were unjustly denied their place in history.

The Zwicky Transient Facility has reached an incredible milestone, classifying over 10,000 supernovas, cosmic explosions that mark the death of massive stars.

Despite decades of searching, scientists still haven’t found the elusive substance that holds galaxies together: dark matter.

A study published this week in an astronomical journal suggests our universe could be 26.7 billion years old, or about twice as old as we thought.

Zwicky, who as a young man left his homeland of Switzerland for California, becoming a Caltech physics professor in 1927, is perhaps most famous for his work on supernovas.

How is it possible that you can't see 95% of the universe? How is it possible that you can't see 95% of the universe? The edge of our milky way defies known physics, so physicists are using the ...