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Astronomers discover nearby super-Earth may “potentially have life”



To find out if we are alone in the universe, scientists may have taken a step away. Astronomers have recently discovered several nearby exoplanets. They say they may “live” and surround the brightest red dwarf star in the sky.

According to a study published in the journal Science on Thursday, a planetary hunting team of astronomers discovered two super-Earths orbiting the red dwarf star Gris 887. The main star is only 11 light-years away from the earth, almost making us a neighbor.

The team monitored the system using the high-precision radial velocity planetary searcher (HARPS) spectrometer of the European Southern Observatory in Chile and analyzed the archive data of the star for nearly two decades. Astronomers used a technique called “Doppler swing”

; and found that the planet’s orbit is only 9.3 days and 21.8 days, even faster than Mercury.

Super-Earth is a planet with a mass higher than Earth but lower than ice giants such as Uranus and Neptune. Exoplanets or planets outside our solar system are called Gliese 887b and Gliese 887c.

Planets are located near stars Livable zone -Areas where liquid water may exist. However, scientists say that later planet temperatures were about 70 degrees Celsius, or 158 degrees Fahrenheit.

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The artist’s impression of the newly discovered multi-planetary system of the super-Earth, which orbits the nearby red dwarf star Gleaser 887.

Mark Garrick


They also believe that planets may be rocks like Earth and Mars.

Unlike other Red dwarfThe star has almost no star points and is much less active-meaning that newly discovered planets are more likely to retain their atmosphere, making living conditions more reasonable. Active stars are prone to dangerous flares, which can easily damage the planet’s atmosphere.

Lead author Dr. Sandra Jeffers told Nature: “This is the best star to understand whether the planets of the sun have an atmosphere and whether they have life.” “GJ 887 is exciting, Because the central star is so quiet. This is the excellent part.”

Jeffers said that astronomers have been searching for the star’s signal for 20 years.

According to this study, the researchers also found evidence that there may be a third planet far away from the main star. Its orbit is about 50 days, and its surface temperature may be more suitable for liquid water, so it is more suitable for life.

The system is now James Webb Space Telescope, The successor to the Hubble telescope, will be launched next year.

Jeffers said in a press release: “These planets will provide the best possibilities for more detailed research, including finding life outside our solar system.”


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