Euclid Mission to Probe Universe's Darkest Secrets Approved
The first-ever mission dedicated to looking for dark matter and dark energy, two mysterious entities believed to explain the composition of the universe as we know it, will be launched in 2020, the European Space Agency said. The 800-million-euro ($1-billion) Euclid project will use a satellite employing a 1.2-metre (four-foot) diameter telescope and special cameras to map a third of the known universe, a 3D reconstruction of up to two billion galaxies and dark matter associated with them, the agency said in a statement.
Dark energy is a term used to explain the accelerating expansion of the universe, while dark matter is what is believed to hold it all together, exerting a gravitational force.
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