Did comets bring life to Earth?
The hypothesis of scientists
Did comets bring life to Earth? / Ph: Pexels@Ahmad Qime[/caption]
According to the results of a recent study, it is possible that comets have brought the necessary elements, such as phosphorus, to Earth billions of years ago.
The hypothesis of scientists
Víctor Rivilla, head of the research and a scientist at the Arcetri Astrophysical Observatory at the Italian National Institute of Astrophysics, said: "Life appeared on Earth about 4 billion years ago but I still don't know how this process happened. " It is true to say that scientists need to follow its journey through space to determine how phosphorus has come to Earth. In fact, Atacama Large Millimeter / submillimeter Array (ALMA) telescopes in Chile and the European Space Agency's Rosetta spacecraft are two tools that can be used for this study. The ALMA telescope can observe an area of star formation called AFGL 5142. Thanks to using it, astronomers can detect the origin of molecules like phosphorus monoxide. After going into operation in March 2004, the Rosetta spacecraft has a 10-year journey to the comet 67P / Churyumov-Gerasimenko. Rosetta has been orbiting this comet for two years, starting in 2014 to study its surface. Rosetta and its ROSINA ((Rosetta Orbiter Spectrometer for Ion and Neutral Analysis) device have discovered phophorus around a dust cloud surrounding the comet. However, scientists do not know how phophorus appears here. "The combination of data from ALMA and ROSINA has revealed a chemical chain during star formation when phosphorus monoxide plays a key role," Rivilla said. In addition, Kathrin Altwegg, ROSINA follower said that phosphorus was essential to life as we see it today. Comets might have brought large amounts of organic compounds to Earth and the phosphorus monoxide found on comet 67P further strengthened the relationship between comets and life on our planet.Did comets bring life to Earth?
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