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Scientists Witness Birth of First Stars 13 Billion Years Ago

6/12/2025

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Summary

Scientists Uncover Cosmic Dawn

In a groundbreaking achievement, scientists have utilized ground-based telescopes to glimpse the Cosmic Dawn, over 13 billion years ago, witnessing the birth of the first stars. The CLASS project in Chile captured faint polarized microwave signals from this ancient era, unraveling mysteries of the universe's early evolution and the cosmic microwave background.

Summary

Astronomers Launch Universe Map

Astronomers have launched COSMOS-Web, a groundbreaking universe map crafted from James Webb Space Telescope data. Spanning nearly 98% of cosmic history, it catalogs an astonishing 800,000 galaxies—ten times more than anticipated from the early universe. This ambitious project not only challenges current cosmological theories but also champions open science, inviting global collaboration in research.

History

Historical Context

The Hubble Space Telescope, launched in 1990, transformed our cosmic understanding by identifying over 1.5 million celestial objects. Building on this legacy, the CLASS project in Chile, initiated in 2016, studies signals from 13 billion years ago, revealing insights into the universe's first stars. These advancements, alongside the COSMOS-Web initiative mapping 800,000 galaxies, highlight the collaborative nature of modern astronomy.

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Scientists Uncover Cosmic Dawn

In a groundbreaking achievement, scientists have utilized ground-based telescopes to glimpse the Cosmic Dawn, over 13 billion years ago, witnessing the birth of the first stars. The CLASS project in Chile captured faint polarized microwave signals from this ancient era, unraveling mysteries of the universe's early evolution and the cosmic microwave background.

1 / 3