The scientists are keeping a list of exoplanets that are the most suitable for housing alien life. Now, the researchers just added two new worlds to that listing, Kepler-1652b and HD-283869b, both of which being considered Earth-like planets suitable for holding the conditions for extraterrestrial life forms development.
The Kepler-1652b is a rocky planet similar to the Earth
The Kepler-1652b exoplanet is only 12% larger than our world and is also a rocky planet, orbiting its host star, the Kepler-1652, within the habitable zone.
“The planet around Kepler-1652 seems like a good candidate for habitability. It could have temperate conditions with a similar terrestrial atmosphere,” said Professor Abel Mendez from the University of Puerto Rico’s Habitable Exoplanets Catalog, in Arecibo, for CNET.
This exoplanet is the third-most Earth-like planet according to the “Earth Similarity Index,” with only TRAPPIST-1e and Proxima-b ranking higher.
Also similar to Proxima Centauri, the Kepler-1652 star is a red dwarf, too, so strong radiations from the star could reduce the chances of alien life on the Kepler-1652b exoplanet.
“Unfortunately, the planet is 822 light-years away and too far to learn more about it in the near future,” said Mendez.
The HD-283869b exoplanet is a Super-Earth that can house alien life
“The planet around HD 283869 seems like a marginal world for habitability. It is almost twice as big as Earth and more likely a hot ocean world with an orbit very close to the inner edge of the habitable zone. However, it still could have temperate conditions with a similar terrestrial atmosphere,” added Abel Menendez.
Even though HD-283869b is not very similar to our world, this exoplanet can still meet the proper conditions to let alien life to grow. Even more, the planet is closer to us than Kepler-1652b, being at only 155 light years away from us.
With these two additions, the list of exoplanets that are suitable to house alien life grows to 55. However, while the technology to travel to these distant worlds is still far from being developed, the next generations of space telescopes could help scientists learn more about these far-distant planets.