The European Space Agency’s Euclid space mission, which is scheduled for launch in 2023, is a revolutionary project that will explore the dark matter universe and test alternative theories of gravity. The mission will use a 1.2-meter telescope to map the positions of two billion galaxies, allowing scientists to study how the universe has evolved over time. The data collected by Euclid will be crucial for understanding the nature of dark matter and dark energy, two mysterious components that make up most of the universe. Furthermore, Euclid will help scientists test alternative theories of gravity, such as Modified Newtonian Dynamics (MOND) and TeVeS, which challenge the current understanding of gravity. With this information, researchers will gain a better understanding of the universe and its evolution.

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source: Phys.org