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NASA's James Webb Space Telescope (JWST) has peered into the early Universe, observing galaxies from just a few hundred million years after the Big Bang. With its unique infrared sensitivity, JWST allows researchers to examine these ancient galaxies and uncover secrets from the Universe's formative years. The telescope's NIRCam (Near-Infrared Camera) played a key role in these observations.
An international team of astronomers has identified bright hydrogen emission from a galaxy, JADES-GS-z13-1, at an unexpectedly early time. This distant galaxy, observed just 330 million years after the Big Bang, has a redshift (z) of 13, indicating its age and distance. This discovery challenges existing understanding of how light could have pierced the thick fog of neutral hydrogen that filled space at that time.
ImgSrc: assets.science.
References :
An international team of astronomers has identified bright hydrogen emission from a galaxy, JADES-GS-z13-1, at an unexpectedly early time. This distant galaxy, observed just 330 million years after the Big Bang, has a redshift (z) of 13, indicating its age and distance. This discovery challenges existing understanding of how light could have pierced the thick fog of neutral hydrogen that filled space at that time.
ImgSrc: assets.science.
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References :
- Fraser Cain: JWST was built to see the first galaxies in the Universe coming together just a few hundred million years after the Big Bang.
- www.newscientist.com: Little red dots seen by JWST might be a kind of black hole 'star'
- Brian Koberlein: Images of little red dots seen in several deep-sky surveys of JWST.