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Webb telescope revealing the earliest galaxies after the Big Bang

Released on July 6, 2022 by NASA, CSA, and FGS, this distribution image shows a fine guidance sensor test image taken in parallel with NIRCam imaging of the star HD147980 for eight days at the beginning of May. ..

According to the White House, NASA’s James Webb Space Telescope is ready to reveal some of the earliest galaxies formed after the Big Bang, raising expectations for the first image of a powerful observatory. ..

President Joe Biden will publish images during a livestreaming event starting at 5 pm (Greenwich Mean Time 2100).

“High-resolution images will reflect the light captured by galaxies over 13 billion years ago,” said Karine Jean-Pierre, a spokeswoman for the White House.

we space Agency NASA revealed last week that Webb’s first targets included distant galaxies, bright nebulae, and distant giant gas giants.

White House Briefing for Previewing Images from James Webb Space Telescope

The rest of the first wave of images is set to be released by NASA on Tuesday.

Webb’s infrared capabilities make Webb unique and powerful, allowing it to both penetrate clouds of cosmic dust and detect light from the earliest stretched stars. Infrared wavelength As the universe expands.

This allows us to see the period immediately after the Big Bang 13.8 billion years ago, far back from previous telescopes.

“When I first saw the images, I suddenly learned three things about the universe that I didn’t know before,” said Danko, an astronomer and early space expert at the Space Telescope Science Institute (STSI). Told to. “It completely blew my heart away.”

The Carina Nebula is famous for its towering pillars, including the

The Carina Nebula is famous for its towering pillars, including the “Mystic Mountain,” the apex of the universe, three light-years high, taken in iconic images by the Hubble Space Telescope. It has been the best space observatory of mankind so far.

First target

The International Commission has decided that the first wave of the image will contain the Carina Nebula, a huge cloud of dust and gas 7,600 light-years away.

The Carina Nebula is famous for its towering pillars, including the “Mystic Mountain,” the apex of the universe, three light-years high, taken in iconic images by the Hubble Space Telescope. It has been the best space observatory of mankind so far.

Webb also performed spectroscopy (an analysis of light that reveals detailed information) on a distant gas giant called WASP-96 b, which was discovered in 2014.

Almost 1,150 Light year WASP-96b from Earth is about half the mass of Jupiter and zips around it in just 3.4 days.

STSI astronomer Nestor Espinoza told AFP that previous exoplanet spectroscopy performed using existing equipment is very limited compared to what Webb can do.

“It’s like being in a very dark room, and you can see only a few pinholes,” he said of his previous technique. Now, with Webb, “I’ve opened a large window so I can see all the details.”

James Webb Space Telescope

Graphic of James Webb Space Telescope, the successor to Hubble.

Millions of miles from the earth

Launched by the Ariane 5 rocket from French Guiana in December 2021, the Webb is orbiting the Sun in a region of space called the Second Lagrange Point, at a distance of 1 million miles (1.6 million kilometers) from Earth. ..

Here, it remains fixed with respect to the Earth and the Sun, minimizing the fuel required to correct the course.

The total cost of the engineering wonder project is estimated at $ 10 billion, making it one of the most expensive scientific platforms ever built, comparable to CERN’s Large Hadron Collider. ..

Webb’s primary mirrors are over 21 feet (6.5 meters) wide and consist of 18 gold-coated mirror segments. Like a camera in your hand, the structure needs to be as stable as possible to get the best shots.

Charlie Atkinson, chief engineer of the James Webb Space Telescope program at Northrop Grumman, a major contractor, told AFP that the AFP would only wobble by a factor of 17 million.

After the first image, projects are competitively selected through a process in which applicants and choosers do not know each other’s identities in order for astronomers around the world to share time with the telescope and minimize bias. ..

Thanks to its efficient launch, NASA estimates that Webb has enough propellant for a 20-year lifespan to answer basic space questions in collaboration with the Hubble Space Telescope and the Spitzer Space Telescope. increase.


James Webb Space Telescope looks to space


© 2022 AFP

Quote: The earliest after Big Bang (July 11, 2022) acquired July 11, 2022 from https://phys.org/news/2022-07-webb-telescope-reveal-earliest-galaxies.html Webb telescope revealing the galaxy of

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Webb telescope revealing the earliest galaxies after the Big Bang

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