The existence of dark matter and dark energy questioned
In 1933, the Swiss astronomer Fritz Zwicky made a discovery that left the world incredulous: there would be much more material in the Universe than the one we see. Astronomers then call this unknown matter "dark matter". This concept was to become even more important when, in the 1970s, the American astronomer Vera Rubin also had to use this mysterious material to explain the movements and speeds of the stars. Since then, scientists have sought to identify dark matter through the establishment of very important means (in space, on the ground, and even at CERN) to find it, without success. In 1998, a second thunderbolt, a team of Australian-American astrophysicists discovered the acceleration of the expansion of the Universe, which earned it the Nobel prize for physics in 2011. Despite considerable resources, No theory or observation can be used to define this dark energy, which would be stronger than Newton's gravitational attraction. Black matter and dark energy are thus two mysteries on which astronomers have been hitting for more than 80 years and 20 years respectively.