Hycean planets

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brian livesey
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Hycean planets

Post by brian livesey »

They’re hot, covered in oceans, have hydrogen-rich atmospheres, are up to 2.6X bigger than Earth and with a mass 10X greater. They are also abundant in the Galaxy and they could harbour life, if only at the microbial level.
In the search for extraterrestrial life, astrophysicists have tended to concentrate on smaller Earth-like exoplanets, but their diminutive size makes it difficult to analyse them. Researchers at the University of Cambridge that have classified the Hycean planets ( a contraction of hydrogen and ocean ) say that due to their greater size and composition it would be easier to examine the atmospheres of these particular exoplanets for signs of life-indicating gases.
The Cambridge Team reckons there’s a possibility that the James Webb Space Telescope, due for launch in December, could have the spectroscopic potential to detect the telltale gases produced by life on the Hyceans.
Last edited by brian livesey on Tue Sep 14, 2021 9:03 pm, edited 2 times in total.
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Lariliss
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Re: Hycean planets

Post by Lariliss »

Thank you for the information.

Exoplanets research looks quite limited, and lack of 'candidates' to be explored.
One of the astrobiology ways to define life is eukaryotes with metabolism.
A habitable zone needs energy, carbon, liquid water, a list of chemical elements for light absorbing, energy and electrochemical reactions.
Tests and simulations to formulate limits of habitability have been done, but still they have a lot of variance, even for ‘an ideal’ habitable zone shaping (for an aqua planet).
It seems that any planet or moon with signs of water (in any state and location) will be worth to be examined and monitored while climate changes come.
And good chance that life is more common than observed during our lifetime.
And great that we have James Webb Space Telescope to be launched.
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brian livesey
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Re: Hycean planets

Post by brian livesey »

Let’s hope than when Webb is launched in December there are no technical hitches. So much time and effort has gone into the Webb project.
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Lariliss
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Re: Hycean planets

Post by Lariliss »

The stable relationship between the Earth and the Moon is believed to be a part of what makes Earth habitable.
There is also an approach for exoplanet life by searching for exoplanet - exomoon stable systems.
Still in any case, the search might be vast and any ‘Earth-like’ planet or exomoon might be a candidate for an alien life.
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Lariliss
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Re: Hycean planets

Post by Lariliss »

Careful and effective data combining together with cooperation show that it is possible to get more data with the facilities that we already have functioning.
Good example demonstrated by scientists is WASP-127b ('a hot Saturn' that orbits a Sun-like star located about 525 light-years away).
Combined data from space and earth observations detected clouds in its upper atmosphere and measured their altitudes with high precision as never before.
https://www.universetoday.com/152704/as ... -altitude/

The exoplanets investigation seems to become more clear, precise, unveiled and 'popular' very soon.
Number, Letter, Note: Know, Think, Dream.
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