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Interstellar comet 3I/ATLAS nears Earth

Farewell, comet 3I/ATLAS! Interstellar visitor heads for the outer solar system after its closest approach to Earth

3I/ATLAS has now made its closest approach to the sun and Earth and is now heading back out toward the outer solar system.

Discover Magazine on MSN · 12h

Say Goodbye to Comet 3I/ATLAS, the Interstellar Visitor That Briefly Called Our Solar System Home

Independent Journal Review · 1d

Scientists Clash Over Nature of Interstellar Visitor 3I/ATLAS Ahead of Earth Flyby

· 21h

Interstellar comet 3I/ATLAS approaches Earth today. How to Watch

Today is the day that astronomers, amateur stargazers and alien conspiracy theorists alike have been waiting for: interstellar comet 3I/ATLAS is as close to Earth as it will ever get.

Space.com · 1d

Watch interstellar comet 3I/ATLAS make its closest approach to Earth in free livestream tonight

· 15h

You can still see comet 3I/ATLAS in the night sky. Here’s how.

Smithsonian Magazine

The Ten Most Significant Science Stories of 2025, From Medical Breakthroughs to an Interstellar Visitor

All year long, these moments captivated the public, demonstrated dangerous trends, and pushed research and innovation forward

2don MSN

Interstellar visitor visible in Calif. just this once

The NASA-funded ATLAS survey telescope in Chile found the comet on July 1. The comet was not visible as it raced behind the sun, getting as close as 130 million miles, for about a month before reappearing in December. After it passes Earth on Friday, the comet is expected to journey back out of the solar system.

11d

Is 3I/ATLAS a friendly visitor or ‘serial killer’ sent to poison us?: Harvard scientist

With 3I/ATLAS set to fly by Earth in two weeks, professor Avi Loeb is debating whether our interstellar visitor is friend or foe — an answer that potentially lies in its chemical makeup.