Tuesday , May 24 2022

Is a higher sphere really suitable for life?


The presence of life is already imaginable on the mainland, that is, on planets not much larger than Earth. More and more of the uplands are being discovered, such planets have already been discovered in the habitable zone.

Seroplators have called implants that are similar to our Earth’s but a slightly larger mass (ie, planets outside the Solar System). Planets with a maximum of 10 mass from Earth are classified into this category.

What is the interior of upland like?

The internal structure of uplands can be multiple based on current models. One possibility is an Earth-like structure, in this case the material of the super-earth also contains many irons and various rocks. That is, it is like our planet, only in a larger version. Ocean planets, which have particularly high water content, can be very alien. Under the right conditions, they can be covered with liquid water, however, the entire water cover may be frozen.

Illustration of an Earth-like exoplanetSource: leemage / © Ron Miller / Novapix / Leemage / Ron Miller

It is also possible that water ice is a significant part of the heavenly body mass. These could be low density planets, partly ice or liquid material – perhaps a reminder of Uranus and Neptune. However, it is also possible that the hydrogen and helium proportions in such neural bodies were very high and previously lost much more mass to their current state.

With the help of current measurements, it is difficult to determine what the composition and internal structure of an above ground could be. Another important question is whether plate tectonics works on it, which is a significant factor in the global material and life formation cycle.

Is there liquid water?

Temperature and air pressure are critical factors for surface water. If the atmosphere is too thin and the surface air pressure is low, the boiling point will be very low, so the water will boil shortly after the ice melts (similar to the situation on Mars, where ice melts at 0 degrees Celsius and +4 The water is already boiling in degrees Celsius.)

To date, the Kepler spacecraft has been the major contributor to the discovery of exoplanetsSource: NASA / Ames / JPL-CalTech

Implants, which are even more interesting than super-Earths, are truly heavenly bodies of similar size and mass to Earth. The discovery of the first such planets was announced on December 20, 2011 by NASA: two planets (Kepler-20e and f) that are already truly Earth-sized were discovered. However, these planets rotate too close to their stars, so life can almost be ruled out.

More and more uplands are being discovered in the residential zone

One such upland that is likely to contain liquid water and potentially suitable for life was discovered in mid-2019 by an international research team.

Hydra’s constellation exoplanet was viewed with NASA’s TESS (Transiting Exoplanet Survey Satellite) satellite. The heavenly body is about 31 light years (2.9328264465 × 1014 kilometers) from Earth.

With the good GJ 357 starSource: Jack Madden / Cornell University

The exoplanet was named GJ 357 and is thought to be about twice the diameter of the Earth and six times its mass. It is located in the outer, habitable zone of its star mother, so researchers say it may have water and possibly life on it.

One of the most recent exoplanet sightings occurred in October 2020, when two exoplanets were discovered by Swiss astronomers using the SAINT-EX observatory in Mexico. Discovering exoplanets circulating extruded planets orbiting the red dwarf TOI-1266 is “an important step in the search for possible habitable worlds,” researchers at the University of Bern and Geneva wrote in their review of the scientific journal Astronomy and Astrophysics.

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