Asteroid opened a crater in South Korea, created an extreme environment full of minerals, and now scientists see important clues about primitive life there.

Written by Caio Aviz

Published on 26/05/2026 at 16:53

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Stromatolites found in the Hapcheon crater indicate that the impact of an asteroid may have created a heated hydrothermal lake, rich in minerals and favorable to the growth of ancient microorganisms linked to primitive life on Earth

A scientific discovery made in South Korea may expand the understanding of the origin of life on Earth and the search for ancient signs on Mars. Researchers identified stromatolites in the Hapcheon impact crater, considered the only confirmed asteroid crater on the Korean Peninsula.

These rock structures are formed by the action of microorganisms over millions of years and are associated with ancient records of life. The study conducted by the Korean Institute of Geoscience and Mineral Resources (KIGAM) suggests that the crater may have hosted a hydrothermal lake after the asteroid impact.

Panoramic view of the Hapcheon impact crater in South Korea, surrounded by mountains and vegetation, in a setting linked to the study on asteroids and primitive life. — Hapcheon impact crater, where researchers identified geological evidence of a post-asteroid impact hydrothermal lake environment. – Credit: Korean Institute of Geoscience and Mineral Resources (KIGAM)

Asteroid impact created extreme environment

The asteroid’s impact would have melted part of the region’s rocks, according to the researchers. As a result, the generated heat may have kept the water warm and rich in minerals for a long time, creating an extreme environment favorable to resilient microorganisms.

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Stromatolites reinforce clues about oxygen

The study published in the journal Communications Earth & Environment records the first identification of these formations at the site. The discovery may also bring new clues about the Great Oxidation Event, which occurred about 2.4 billion years ago.

During this period, the oxygen levels in Earth’s atmosphere increased intensely due to the activity of microscopic organisms. According to researchers, lakes heated by asteroid impacts may have functioned as small “oxygen oases”.

Chemical analyses indicate extraterrestrial material

The analyses conducted on the rocks revealed signs of extraterrestrial material mixed with the crater. Marks of alterations caused by water at high temperatures were also identified, reinforcing the hypothesis of an ancient hydrothermal system.

The inner layers of the stromatolites showed more intense signs of hydrothermal activity, according to the scientists. Therefore, these structures may have formed when the environment was still very hot.

Discovery strengthens search for life on Mars

The study reinforces the hypothesis that impact craters played an important role in the origin of life. Similar environments may have existed on Mars, as the planet has several craters that may have harbored water in the past.

For Jaesoo Lim, the principal author of the study, this is the first comprehensive evidence that stromatolites can form in hydrothermal lakes created by asteroid impacts. These regions, therefore, may become important targets in the search for signs of ancient life beyond Earth.

What else can this discovery reveal about primitive life on Earth and the possible hidden traces on Mars?

Asteroid opened a crater in South Korea, created an extreme environment full of minerals, and now scientists see important clues about primitive life there.

Stromatolites found in the Hapcheon crater indicate that the impact of an asteroid may have created a heated hydrothermal lake, rich in minerals and favorable to the growth of ancient microorganisms linked to primitive life on Earth

Asteroid impact created extreme environment

Stromatolites reinforce clues about oxygen

Chemical analyses indicate extraterrestrial material

Discovery strengthens search for life on Mars

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Asteroid opened a crater in South Korea, created an extreme environment full of minerals, and now scientists see important clues about primitive life there.

Stromatolites found in the Hapcheon crater indicate that the impact of an asteroid may have created a heated hydrothermal lake, rich in minerals and favorable to the growth of ancient microorganisms linked to primitive life on Earth

Asteroid impact created extreme environment

Stromatolites reinforce clues about oxygen

Chemical analyses indicate extraterrestrial material

Discovery strengthens search for life on Mars

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