How did life come to Earth? Scientists suggest that life in the solar system already existed before any planet formation. ( Guillaume Fixby Festival )
The primitive years of the solar system are covered with mystery, but did life exist then, even when there were no planets?
Scientists suggest existence of life in Planetesimals
During the breakthrough conference discussion at the University of California, Berkeley, on April 11, planetary scientist Lindy Alkins-Tanton of Arizona State University raised the idea that life might have been around before the planets had finished forming.
After all, Alkins-Tinton pointed out that the planets contained all the ingredients needed for life to flourish even when the solar system still formed. It is possible that the conditions of revulsion have continued in these fragments for millions of years and millions of years, allowing life to develop.
Plantesimals are the building blocks of the planets. It is possible that these small objects may even have made its way to planets such as Earth to seed life that already exists in their trunk. After all, previous research has been a theory that the space rocky life brought elements on Earth by a crash on the planet.
"Not all planets will be involved in catastrophic conflicts that will cause them to enter the plasma or completely negate anything that has been created," explained Alkins-Tanton. "Some things are going to fall – like in Lybinsk, for example – back to the surface of an air-conditioned planet."
Blocks of life
Alkins-Tanton, the author of Steven West, and her students at ASU have explored the possibility of life coming from smaller cosmic bodies. All three components of life are found in the plantations: liquid water, organic molecules and energy.
For example, radioactive decay of nanoparticles within plantals may provide a heat source that can lead to liquid water and a living environment within a rocky object. These environments can exist for millions of years, which may be enough time for life.
Of course, Elkins-Tanton says that her team does not claim that life on earth originates from plantals but he simply says that there is a possibility. This, as she describes, is a thought problem worth considering, since even exploring the potential could generate new knowledge about the early stages of the solar system.
"Is life really on the planets, is there evidence of life in meteorites that we could not find?" Alkins-Tanton asks. "If so, how could they spread in the solar system – and the implications are many and impossible to question of this possibility."
Like the building blocks of the planets, planets are unique cosmic bodies that are of particular interest to scientists like Alkins-Tanton, who also leads the NASA mission to investigate the metallic asteroid psychology, according to Scientific American.
NASA's New Horizons spacecraft has completed its campaign of the Kuiper Plantisial Ultima Thule Belt in March, and this pre-saved rock offers the best opportunity scientists have ever had to learn planetarium.
Along with many other features of Ultima Thule, its surface feature of methanol, ice water, and organic molecules. The task may provide the ideal window for astronomers to better understand the planets – and as a result understand early life in the solar system as well.
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