Webb Telescope snaps 45000 galaxies in ONE frame; universe seen like never before | Tech News

Webb Telescope snaps 45000 galaxies in ONE frame; universe seen like never before

The James Webb Space Telescope Advanced Deep Extragalactic Survey program has captured an image revealing a section of the sky that shows an astounding 45,000 galaxies in a single frame.

| Updated on: Jun 06 2023, 16:47 IST
NASA reveals stunning Jupiter images captured by James Webb Space Telescope
1/6 Amazingly, currently, on Jupiter, there are auroras, storms, extreme temperatures and powerful winds stirring things up, according to NASA. The images captured by the James Webb Space Telescope could give scientists a look at the conditions of the gas giant. (NASA)
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2/6 Planetary astronomer Imke de Pater, professor emerita of the University of California, Berkeley said, “We hadn’t really expected it to be this good, to be honest. It’s really remarkable that we can see details on Jupiter together with its rings, tiny satellites, and even galaxies in one image.” (NASA)
3/6 The images were captured by the telescope's Near Infrared Camera (NIRCam) instrument on July 27, which highlighted the planet's unique features. According to NASA, the NIRCam has three specialized infrared filters that showcase details of the planet. (AFP)
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4/6 The image was created by compositing several images. Auroras are visible near the Northern and Southern poles of the planet. According to NASA, the auroras shine in a filter that is mapped to redder colors, which also highlights light reflected from lower clouds and upper hazes. (NASA)
5/6 The Great Red Spot as well as other clouds can be visible in the images as white since it is reflecting the sunlight. The Great Red Spot is a giant vortex which has been swirling around on Jupiter’s surface for a long time. Jupiter’s 2 moons, Amalthea and Adrastea can also be seen “photo-bombing” the planet. (REUTERS)
6/6 Thierry Fouchet, a professor at the Paris Observatory, as part of an international collaboration for Webb’s Early Release Science program said, “This one image sums up the science of our Jupiter system program, which studies the dynamics and chemistry of Jupiter itself, its rings, and its satellite system.” (NASA/AFP)
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This infrared image was captured by NASA's James Webb Space Telescope (JWST) for the JWST Advanced Deep Extragalactic Survey, or JADES, programme. (NASA)

The James Webb Space Telescope (JWST) has made significant contributions to our understanding of how galaxies and stars came into existence. NASA recently shared an infrared image captured by Webb as part of the JWST Advanced Deep Extragalactic Survey (JADES) program, shedding more light on the vast expanse of the universe.

This particular image focuses on a region of the sky known as GOODS-Sout. Amazingly this one photo packs over 45,000 galaxies, as reported by NASA. Researchers from the University of Texas at Austin conducted a study of galaxies that emerged 500 to 850 million years after the Big Bang, also referred to as the Epoch of Reionisation. During this epoch, the universe was shrouded in a gaseous fog that rendered it opaque.

Approximately one billion years after the Big Bang, this fog dissipated, making the universe transparent—a process known as reionisation, which lends its name to this specific epoch. The mystery lies in understanding how reionisation occurred.

One possible explanation revolves around the presence of active supermassive black holes housing young, hot stars. Researchers employed Webb's NIRSpec (Near-Infrared Spectrograph) to examine these galaxies for signs of star formation, leading to a remarkable discovery. Ryan Endsley from the University of Texas at Austin stated, "Almost every single galaxy we have found exhibits highly prominent emission line signatures, indicating recent and intense star formation. These early galaxies excelled at producing hot, massive stars."

These young, bright, and massive stars emit copious amounts of ultraviolet light, which ionises the surrounding gas atoms, stripping electrons from their nuclei. This transformation from opaque to transparent gas is responsible for the reionisation process.

The findings of this research were presented at the 242nd meeting of the American Astronomical Society in Albuquerque, New Mexico, as announced by NASA.

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First Published Date: 06 Jun, 16:47 IST