Telescope Spots Most Distant Quasars Ever Discovered
In a landmark observation, the European Space Agency’s Euclid telescope has spotted the most distant quasars ever recorded, pushing the frontier of our cosmic knowledge back to the universe’s infancy.
Unveiling the Universe’s Earliest Beacons
Quasars are the brightest objects in the cosmos, powered by supermassive black holes that consume surrounding matter at astonishing rates. The newly discovered quasars lie at a staggering distance, meaning their light has traveled for more than 13 billion years to reach Earth. This places them among the earliest luminous structures formed after the Big Bang.
Euclid’s Role in Mapping the Early Universe
Launched in 2022, Euclid’s primary mission is to chart the geometry of the dark universe. Its advanced infrared instruments, however, have proven invaluable for detecting the faint signatures of ancient quasars. By scanning vast swaths of the sky, Euclid can identify the characteristic colors and spectral lines that signal the presence of these distant, energetic cores.
What These Quasars Tell Us About Supermassive Black Holes
Finding quasars at such extreme distances confirms that supermassive black holes—millions to billions of times the mass of the Sun—were already in place less than a billion years after the Big Bang. This challenges existing models of black hole growth, suggesting that these cosmic giants formed and grew more rapidly than previously thought.
Implications for Early Galaxy Formation
Quasars are not isolated phenomena; they reside at the centers of young galaxies. The discovery of these distant quasars provides clues about the environments that nurtured them, offering insight into how early galaxies assembled their mass and evolved over cosmic time.
Future Prospects and Ongoing Research
As Euclid continues its survey, astronomers anticipate uncovering even more distant quasars and refining our understanding of the early universe. Complementary observations from ground‑based telescopes and upcoming space missions will help piece together the complex puzzle of cosmic dawn.
For more details, read the full CBS News article: Euclid telescope discovers oldest quasars ever.
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