Friedhelm “Fritz” Caspers, a master of beam cooling, passed away on 12 March 2025.

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

Experts were running a test to see how some of the most mysterious singularities in the universe worked. They can change physics forever with the discovery.

Something invisible holds them together; many scientists believe that dark matter is at the heart of this—an idea first suggested in 1933 by a Swiss researcher, Fritz Zwicky.

An astrophysicist named Fritz Zwicky was the first to use the term “dark matter” to explain the gravitational interactions between galaxies back in 1933. 65 years later, another astrophysicist, ...

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

A panoramic view of Mars (NASA) First theorized in the 1930s by Swiss astronomer Fritz Zwicky, dark matter is a form of matter undetectable to the human eye.

Exhausted Photons A researcher has revived an almost 100-year-old theory to refute that the Big Bang ever happened, challenging one of the most established physical theories in modern science. As ...

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 ...

Her work built upon a hypothesis formulated in the 1930s by Swiss astronomer Fritz Zwicky and kick-started a search for the elusive substance.Since then, scientists have been trying to observe ...

Perhaps dark matter is made of an entirely different kind of particle than the ones physicists have been searching for. New experiments are springing up to look for these ultra-lightweight phantoms.