They account for 95 percent of its mass-energy and only 5 percent for the visible starry sky.
There are many theories and hypotheses on how and where to catch this “darkness”, the most sophisticated experiments have been carried out, but the mystery remains.
And here’s another try. The Euclid telescope, created by the European Space Agency, will go in search. He must deal with the geometry of these phenomena. How?
Light reaching us billions of light years away is slightly distorted along the way by a mass of visible and dark matter.
By subtracting the visible matter, one can calculate the presence of “dark matter” that lies between them.
The telescope will create a three-dimensional map of the universe, covering two billion galaxies in more than a third of the sky.
A feature of Euclid is a huge field of view, which will make it possible to detect very massive structures that are beyond the power of other telescopes.
The launch is scheduled between July 1 and July 30 on a SpaceX Falcon 9 rocket. The €1.4 billion mission is planned to last until 2029.
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