Euclid Space Telescope is on the Trail of the Dark Universe #SpaceSaturday
The Euclid space telescope is on a mission to learn more about dark matter and dark energy. When we hear that most of the universe is made up of dark matter and dark energy, it has the feel of an astrophysicist throwing up their hands. But the “dark” universe is more well defined than we might think. And the European Space Agency’s Euclid may shed some light on the dark side of the cosmos. Here’s more from Astronomy Now:
Only 4.9 per cent of the universe is made from visible matter – i.e. the stuff that we can see and taste and touch and is made from atoms. This includes all the stars, gas, dust, planets, asteroids, comets and so on in the cosmos. The remainder is composed of dark matter (26.8 per cent) and dark energy (68.3 per cent). The fact that the nature of both, and hence the nature of the vast majority of the universe, remains mysterious is “the biggest embarrassment in cosmology”, ESA’s Guadalupe Cañas-Herrera told reporters during a pre-launch press conference on 23 June.
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