NASA discovers 7 earth like planets revolving around a star in a solar system


NASA and scientists from the European Southern Observatory have announced that they have discovered a solar system with 7 earth like planets revolving around a star.

At least six of these planets seem to have same a rocky layout just like Earth and three planets are within the habitable zone of the star. Habitable zone is defined as the area surrounding the star in which water can retain its liquid from.

It is being speculated that these three planets may have oceans of water like here on Earth which means there is high possibility of alien life. Although not all of the seven planets may have huge bodies of water but scientists say there is a possibility that all of them have water.

Michael Gillon, the lead author of the research said: “This is an amazing planetary system — not only because we have found so many planets, but because they are all surprisingly similar in size to the Earth!”

Co-author Amaury Triaud said:  “The energy output from dwarf stars like TRAPPIST-1 is much weaker than that of our Sun. Planets would need to be in far closer orbits than we see in the Solar System if there is to be surface water. Fortunately, it seems that this kind of compact configuration is just what we see around TRAPPIST-1.”

The newly discovered solar system is 40 light-years from Earth and in cosmic terms it means that it is located very close to Earth. However, with the technology available today it will still take humans hundreds of millions of years to reach there.

This discovery has been dubbed as monumental and according to another member of the research team, Emmanuël Jehin: “With the upcoming generation of telescopes, such as ESO’s European Extremely Large Telescope and the NASA/ESA/CSA James Webb Space Telescope, we will soon be able to search for water and perhaps even evidence of life on these worlds.”


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