It may be the earth alone Desire We know it supports life, but it does not mean the best for it.
A new study published in the scientific journal Astronomy, Identified 24 “superhabitable” planets with more favorable conditions for host life. They may be slightly older than Earth (4.5 billion years old), “slightly larger, slightly warmer and wetter.” Stars that have a longer lifespan than them can orbit The sun, The researchers found.
“With the coming of the next space telescopes, we will have more information, so it’s important to pick some targets,” Washington State University scientist Dirk Schulz-Makuch told Fox News in a statement. “We need to focus on some of the most promising planets for complex life. However, we need to be careful not to get caught up in the search for a second Earth, because there may be more suitable planets for life than us.”
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The main criteria used by researchers to determine exoplanets are:
- Living within a habitable zone – defined as the area around a star that can support liquid water for a planet.
- Have cool G stars (Sun is a G star) or K dwarf stars.
- Up to 10% larger than Earth.
- It may have a surface temperature of about 5 degrees Celsius higher than Earth.
The researchers added that although 24 exoplanets are more than 100 light-years from Earth, they could be identified by NASA’s James Webb Space Telescope, the future space telescope. A light-year that measures the distance in space is about 6 trillion miles.
Fox News in July Reported The launch of the James Webb Telescope, originally scheduled for March 2021, has been postponed to October 31, 2021 due to the corona virus pandemic.
Of the 24 exoplanets, none meet the criteria of being “superhable”, but each of them has four characteristics, indicating that it is more suitable for life than Earth.
“This principle of superhabitable planets is sometimes difficult to communicate because we think we have the best desire,” added Schulz-Makuch, a researcher at the University of Technology in Berlin. “We have a lot of complex and diverse lifestyles and can survive in extreme environments. Living a life of adaptability is good, but that does not mean we have the best of all.”
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In total, NASA has detected more than 4,500 exoplanets, 50 of which are believed to be habitable until September 2018. They have the size and orbit of the right star to support surface water, at least theoretically, to support life.
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