James Webb Telescope Captures Signs of Alien Life: Okezone Techno

TELESCOPE NASA’s James Webb Space Station (JWST) can reportedly detect the presence of aliens located very far away, 50 light-years from Earth. Now, scientific studies reveal that advanced telescopes have seen it.

Signs of the presence of aliens were captured by JWST in the atmosphere of the “Goldilocks” world, which may be covered in oceans, twice as far from Earth. They were recorded on an exoplanet called K2-18 b, which is a sub-Neptune planet about 120 light-years from the Sun.

For your information, K2-18 b, which is about 8.6 times larger and about 2.6 times wider than Earth, was first discovered by NASA’s Kepler telescope in 2015. And in 2018, the telescope NASA’s Hubble has discovered the presence of water in the atmosphere. exoplanet.

In the new study, which was uploaded to the arXiv preprint server on September 11 and will be published in an upcoming issue of The Astrophysical Journal Letters, the researchers used JWST to further analyze the light passing through K2-18 b.

The resulting atmospheric spectrum, which is the most detailed spectrum ever captured of a habitable sub-Neptune planet, shows that the exoplanet’s atmosphere contains large amounts of hydrogen, methane and carbon dioxide, as well as low levels of ammonia.

The chemical signature suggests that K2-18 b could be an ocean world, an exoplanet with a hydrogen-rich atmosphere and a sea of ​​water covering an icy mantle. The Icean world is an excellent candidate for hosting extraterrestrial life.

However, even if K2-18 b has oceans, there is no guarantee that these oceans are suitable for life. It may be too hot to support life or there may be a lack of nutrients and chemicals needed to fuel life to harvest from Science liveMonday (18/9/2023).

The researchers also detected what they believe were traces of dimethyl sulfide (DMS), a foul-smelling chemical known only to be produced by microscopic life in Earth’s oceans. DMS is emitted primarily by phytoplankton, or photosynthetic algae, in Earth’s oceans.

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It is made of sulfur, carbon and hydrogen and is the most abundant organic form of sulfur in Earth’s atmosphere, making it one of the major biosignatures, or signs of biological life, of possible aliens.

However, the DMS evidence requires further validation, according to the researchers. They also revealed that it is also possible that some unknown geological process could have produced chemicals and not biological life.

The researchers plan to use JWST to look back at K2-18 b in the future to see if the telescope can find further evidence of extraterrestrial life on the exoplanet. If this were to happen, it would change our understanding of our place in the universe.

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