Interaction between two distant galaxies captured by Euclid
ESA
A mosaic of images from the European Space Agency's Euclid Space Telescope captures more than 14 million galaxies, offering the first glimpse into the 'cosmic atlas'. This mapping project has the potential to further our understanding of the role dark matter and dark energy play in the structure of the universe.
“I don't understand the scale at all.” carol mandelsaid ESA's Director of Science during the International Astronautical Congress. meeting In Italy. She said more than 16,000 4K television screens would be needed to represent the images at full resolution.
Euclid's first mosaic image represents just 1 percent of the final map
ESA
The 260-image mosaic offers the first glimpse of Euclid’s project to create the largest and most accurate map of the universe to date. A huge number of galaxies were captured during a two-week expedition in April and make up just 1% of the final map. This image covers an area of ​​the southern sky approximately 500 times larger than the full moon.
Mandel said the faint blue bands across the image are dust and gas in the nearby Milky Way, known as “galactic cirrus clouds.” Zooming in reveals interacting spiral galaxies hundreds of millions of light-years away, some with supermassive black holes at their centers that generate measurable gravitational waves on Earth.
Over the next six years, the telescope will autonomously scan about a third of the night sky. The researchers predict that the final map will show about 8 billion galaxies spanning 10 billion years of cosmic history, each containing billions of stars.
By observing galaxy clusters and other phenomena such as how gravity bends light, “Euclidean would measure the web of the universe, the distribution of matter in space and time,” the ESA said. . Valeria Petrino At a meeting. Dark energy and dark matter influence the formation of voids between galaxy clusters, so measuring these voids could help us understand the characteristics of these elusive materials, she said. Ta.
“We're testing fundamental physical laws at the extreme scales of the universe,” Mandel said.
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Source: www.newscientist.com
