The history of the universe may have just become even more mysterious.

Scientists working with the European Space Agency’s Euclid Space Telescope have announced the discovery of 31 previously unknown ancient quasars, including the two oldest and most distant quasars ever observed. These remarkable objects existed only about 670 million years after the Big Bang, a period known as the Cosmic Dawn, when the universe was just 5% of its current age.

The finding is more than another astronomical record. It challenges long-standing theories about how supermassive black holes formed and grew so rapidly in the early universe.

What Is a Quasar?

A quasar is one of the brightest objects in the universe. At the center of a galaxy lies a supermassive black hole that pulls in enormous amounts of gas and dust. As this material spirals inward, it heats to extraordinary temperatures and emits tremendous amounts of light.

Some quasars are so luminous that they outshine every star in their host galaxy combined.

The newly discovered quasars each shine with the brightness of around one trillion Suns, making them visible across more than 13 billion years of cosmic history.

Why This Discovery Is So Important

Until recently, astronomers believed that supermassive black holes required billions of years to grow.

The Euclid discoveries suggest something very different.

If these black holes already reached enormous sizes only 670 million years after the Big Bang, then either:

• They were born much larger than current theories predict.
• They grew at an astonishingly fast rate.
• Scientists are missing a crucial part of how black holes evolve.

Researchers describe this as one of the biggest unsolved problems in modern astrophysics.

Euclid Is Changing Astronomy

The Euclid Space Telescope was launched by the European Space Agency to study dark matter, dark energy, and the large-scale structure of the universe.

Using highly sensitive visible and near-infrared instruments, Euclid can scan enormous areas of the sky while detecting extremely faint objects.

During only its first 18 months of observations, Euclid discovered 31 ancient quasars—more than doubling the number previously known from this early period of cosmic history. Scientists expect hundreds more to be found during the mission.

Looking Back in Time

Light takes time to travel through space. When astronomers observe extremely distant objects, they are effectively looking into the past.

The light from these quasars has traveled for more than 13 billion years before reaching Earth.

This means astronomers are witnessing events that occurred shortly after the universe itself began.

Every new discovery provides clues about how the first galaxies, stars, and black holes formed.

Why Black Holes Remain a Mystery

Black holes continue to surprise scientists.

Traditional models suggest black holes form when massive stars collapse and then gradually merge and accumulate matter over billions of years.

However, the newly discovered quasars indicate black holes reached extraordinary masses much sooner than expected.

This raises profound questions:

• Were giant black holes created almost immediately after the Big Bang?
• Did unknown physical processes accelerate their growth?
• Could our current understanding of gravity or cosmic evolution need revision?

Future observations from Euclid and the James Webb Space Telescope may provide answers.

Implications for Future Space Research

This discovery is expected to influence research across multiple fields:

• Early galaxy formation
• Dark matter studies
• Black hole evolution
• Cosmology
• High-energy astrophysics
• Future telescope missions

The findings will also guide future observations by the James Webb Space Telescope and upcoming observatories, helping researchers identify even older and fainter objects from the universe’s infancy.

What Comes Next?

Euclid’s mission is only beginning.

Over the coming years, the telescope will create the largest three-dimensional map of the universe ever produced. This massive survey is expected to reveal thousands of new galaxies, gravitational lenses, and many more ancient quasars.

Each discovery will help scientists reconstruct the earliest chapters of cosmic history.

Conclusion

The discovery of the oldest known quasars marks a milestone in modern astronomy. More importantly, it reminds us that the universe still holds many secrets.

By revealing supermassive black holes that existed far earlier than expected, the Euclid Space Telescope is forcing scientists to rethink established theories about the birth and evolution of the cosmos.

As Euclid continues exploring the sky, humanity may be on the verge of rewriting one of the greatest stories ever told: the story of how our universe came to be.