We still do not understand 95 percent of all matter in the universe. ESA's Euclid space telescope hopes to change that when it launches this weekend.
At 11:11 a.m. EDT, a SpaceX Falcon 9 rocket will launch Euclid into space, taking the spacecraft on a nearly one-million-mile journey to the. The location is an ideal location for advanced space probes and is where the James Webb Space Telescope is currently in orbit.
“While dark energy accelerates the expansion of the universe and dark matter governs the growth of cosmic structures, scientists remain unsure about what dark energy and dark matter actually are.
Learning more about the staggering 95 percent of the universe that people know next to nothing about is a key objective for Euclid. However, investigating dark matter and dark energy is remarkably challenging, hence why so little is known. “Gravitational lensing occurs when a massive celestial body — such as a galaxy cluster — causes a sufficient curvature of spacetime for the path of light around it to be visibly bent, as if by a lens. The body causing the light to curve is accordingly called a gravitational lens,”GAL-CLUS-022058s as seen by Hubble.
“The effect is very tiny, less than one percent,” Giuseppe Racca, Euclid project manager at the ESA, explains to. “To detect this tiny effect is very difficult. We need to be very, very precise with our image quality and measure many, many galaxies to be able to deduce anything.”
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