InicionewsAstronomers mapped over 33,000 hydrogen halos from the early universe
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Astronomers mapped over 33,000 hydrogen halos from the early universe

🌌🔭 The early universe was full of hydrogen — and now we finally have the proof. The HETDEX survey has just multiplied the known count of hydrogen gas halos from roughly 3,000 to over 33,000, surrounding galaxies that existed 10 to 12 billion years ago during Cosmic Noon, the most intense star-forming epoch in cosmic history. These Lyman-alpha nebulae are the fuel reservoirs that fed the explosive growth of the first galaxies — and we've barely scratched the surface of what this new census will reveal. Read the full story at SKYCR.ORG. ✨📡

SKYCR Web Team
By SKYCR Web Team
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An enormous halo of hydrogen gas found in Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) data and superimposed over its location as seen in deep imaging from the James Webb Space Telescope (JWST). Present 11.3 billion years ago, this system glows from the combined light of many galaxies within it, with the brightest region represented in red. Using data from HETDEX, astronomers have increased the known number of these haloes by more than a factor of ten—from roughly 3,000 to over 33,000. Credit: Erin Mentuch Cooper (HETDEX), JWST image: NASA, ESA, CSA, STScI.

🌌🔭 The early universe was full of hydrogen — and now we finally have the proof. The HETDEX survey has just multiplied the known count of hydrogen gas halos from roughly 3,000 to over 33,000, surrounding galaxies that existed 10 to 12 billion years ago during Cosmic Noon, the most intense star-forming epoch in cosmic history. These Lyman-alpha nebulae are the fuel reservoirs that fed the explosive growth of the first galaxies — and we've barely scratched the surface of what this new census will reveal. Read the full story at SKYCR.ORG. ✨📡

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