Life clues on K2‑18b: Could this exoplanet host organisms?
Astronomers have discovered potential signs of life on the planet K2-18b, located 124 light-years away from Earth. Observations suggest that the atmosphere of this distant planet is rich in sulfur compounds, often produced by biological processes.
For years, we've gazed at the sky with curiosity, wondering if we are alone in the universe. Recently, astronomers announced the discovery of possible signs of life on K2-18b. Research conducted using the James Webb Telescope revealed the presence of compounds that might indicate the existence of potential extraterrestrial life.
K2-18b is located in the habitable zone
According to the Science Alert portal, K2-18b is an exoplanet situated in the so-called habitable zone, meaning it may have liquid water. It is eight times more massive than Earth and 2.5 times larger. Scientists detected methane and carbon dioxide in its atmosphere, as well as weak signals of dimethyl sulfide (DMS). On our planet, compounds like dimethyl sulfide (DMS) and dimethyl disulfide are exclusively produced by living organisms. The main producers of these compounds are microscopic marine algae known as phytoplankton.
Although the discovery has sparked excitement, some scientists remain skeptical. It is possible that this distant planet is too hot to support life. Experts note that similar substances can also form without the involvement of life forms.
The potential significance of the discovery
Nikku Madhusudhan from the University of Cambridge, the lead author of the study, emphasizes that while the results are promising, further observations are necessary. If confirmed, it could be a breakthrough in the search for life beyond Earth.
The future of exoplanet research
Even if K2-18b does not prove to be a habitat for life, the James Webb Telescope and the latest technologies may accelerate the discovery of life beyond Earth.
Scientists suggest that any potential extraterrestrial life may not resemble intelligent life forms but rather the microorganisms that inhabited Earth's oceans billions of years ago.
