Telescope spots most distant quasars ever discovered
Summary
The Euclid space telescope discovered the oldest and most distant quasars ever seen, shining from a time when the universe was only 670 million years old. These findings help scientists study the early universe and the formation of the first stars and galaxies.Key Facts
- Euclid is a space telescope operated by the European Space Agency and launched in 2023.
- It found 31 new quasars, including the two oldest ever observed.
- Quasars are extremely bright objects fueled by supermassive black holes at galaxy centers.
- The light from the oldest quasars comes from when the universe was about 5% of its current age (670 million years old).
- Euclid has doubled the number of known ancient quasars in just two years.
- These quasars come from the "epoch of reionization," when the first stars and galaxies formed.
- The discoveries challenge scientists because these huge black holes grew very fast in the early universe.
- Data from the James Webb Space Telescope will help study these quasars further.
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