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 ancestral Swiss canton, to ...

The project is named for Caltech astronomer Fritz Zwicky. In the 1930s, Zwicky began hunting cosmic explosions with a small telescope from the frigid heights of the Palomar Mountain near San Diego.

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

In 1933, Swiss astronomer Fritz Zwicky studied the Coma Cluster – a large galaxy cluster more than 20 million light-years in diameter, containing thousands of galaxies – and found something ...

Dr. Fritz Zwicky of Caltech, astronomer, physicist and inventor, is one of the world’s leading experts on jet propulsion. Early in World War II, he left astronomy and joined a group of ...

But the so-called "tired light theory" that originated in 1929 with Swiss astronomer Fritz Zwicky offered an alternative explanation: Perhaps the redshift we see isn't due to galaxies moving away ...

In 1933, the Bulgarian-born astronomer Fritz Zwicky, working in the U.S., ... For this discovery, three scientists were awarded the 2011 Nobel Prize in Physics.

In the 1930s, Swiss astronomer Fritz Zwicky observed that the velocities of galaxies in the Coma Cluster were too high to be maintained solely by the gravitational pull of luminous matter. He ...

If you have such an instrument, you’ll find Zwicky’s Necklace a bit more than 31/2° southeast of magnitude 4.3 Tau (τ) Virginis. This object was discovered more than four decades ago, but ...

The team has probed gas outflows in I Zwicky 1, a close-by quasar, to map its system of clouds being blown away at tens to thousands of kilometers per second. Their findings are published in the ...

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