Researchers Will Probe Euclid Dark Fields to Spot Universes Far Objects

first_imgStay on target NASA Says 2 Asteroids Will Safely Fly By Earth This WeekendHubble Captures Saturn’s ‘Phonograph Record’ Ring System The European Space Agency’s (ESA’s) Euclid mission is studying three extremely dark patches of sky to explore two major cosmic mysteries: dark matter and dark energy.Researchers will probe each “Euclid Deep Field,” one in the Northern Hemisphere and two in the Southern Hemisphere, in order to find distant objects in the universe, said a NASA Jet Propulsion Laboratory (JPL) press release. Expected to launch in 2022, the Euclid mission will survey a giant chunk of the sky and image billions of galaxies in the universe, so researchers could learn more about dark matter and dark energy, and how these phenomena play a role in many space events.Even though dark energy and dark matter could be difficult to detect, the Euclid Dark Energy Telescope will study them with two key methods. First, it will observe the evolution of how galaxies have banded together over the past 10 billion years. Secondly, it will look at galaxy images’ distortion, also known as gravitational lensing, due to an abundance of “ordinary matter” (including stars and planets), and dark matter that gets in the middle between these far away galaxies and Earth.The Euclid mission’s main objective is to study dark energy: Together, dark energy and dark matter make up approximately 95 percent of the universe, while ordinary matter only consists of roughly five percent of the universe. Dark matter, an invisible universe feature that fills up most large galaxies is strange, however, dark energy comes with a more mysterious vibe, since it’s the cause of the universe’s accelerating expansion. Approximately 10 percent of Euclid’s observing time will be allocated to the “Euclid Deep Fields,” and the largest part of the mission will be dedicated to the Euclid wide survey that covers more than one-third of the sky.These areas of the sky have been meticulously chosen for @EC_Euclid to peer deep into the universe’s history:— NASA JPL (@NASAJPL) June 12, 2019The Euclid Deep Field North overlaps with NASA’s Spitzer Space Telescope’s surveyed deep field. Located in the Southern Hemisphere, the Euclid Deep Field Fornax surrounds the Chandra Deep Field South, which has been observed by NASA’s Chandra, ESA’s XMM-Newton X-ray observatories, and the NASA-ESA Hubble Space Telescope.An image from the European Space Agency’s Gaia mission shows the location of the Euclid wide field (blue) and deep fields (yellow). (Photo Credit: ESA / Gaia / DPAC; Euclid Consortium)“There is real power in multi-wavelength astronomy, in which you study the same area of the sky or the same objects with lots of different instruments that observe different wavelengths of light,” Jason Rhodes of JPL, who leads one of three NASA science groups working on Euclid, said in the press release.He added, “By selecting the Euclid Deep Fields now, we’re telling the world where this treasure trove of high-resolution imaging is going to be. In some cases, NASA observatories have already observed portions of the Euclid Deep Fields, and now other observatories on the ground or in space can do the same.”More on NASA Is Building and Testing Its Mars 2020 Rover at JPLNASA Spots ‘Star Trek’ Starfleet Logo ‘Dune Footprints’ on Mars Scientists Spot Strange Table Salt Compound on Jupiter’s Europalast_img read more

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