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Could alien life in the universe be common

NASA is committed to finding life in the universe, and a new study suggests that "Could be common", taking into account how the building blocks of life spontaneously form throughout the universe.

The investigation

In Scientific Reports, it notes that RNA (ribonucleic acid) is relative and simple compared to DNA (deoxyribonucleic acid), and requires approximately 40 to 100 nucleotides for life to exist.

"Given enough time, nucleotides can spontaneously connect to form RNA given the right chemical conditions," says a statement accompanying the investigation.

"But current estimates suggest that the magic number of 40 to 100 nucleotides should not have been possible in the volume of space that we consider the observable universe."

"There is more to the universe than the observable", Study lead author Tomonori Totani said in the statement.

"In contemporary cosmology, it is agreed that the universe experienced a period of rapid inflation that produced a vast region of expansion beyond the horizon from what we can directly observe. Factoring this increased volume into abiogenesis models greatly increases the chances of life occurring. "

It is believed

That the number of stars in the observable universe is estimated at 10 sextillion, but that could reach 10 googol,

"Thanks to rapid inflation", which would make the existence of RNA structures "practically inevitable".

"Like many in this field of research, I am motivated by curiosity and big questions," Totani added.

«Combining my recent research on RNA chemistry with my long history of cosmology leads me to realize that there is a plausible way that the universe has gone from an abiotic (lifeless) state to a biotic one. It is an exciting thought and I hope that research can build on this to uncover the origins of life. '

In February

The SETI Institute announced that they are working on new techniques to detect "Technology firms" which could indicate the presence of an advanced civilization. Technology firms are defined as "Potentially detectable signatures and signs of the presence of distant advanced civilizations", according to NASA.

In September 2018

The $ 200 million Transit Exoplanet Study Satellite (TESS) found its first exoplanet and in April 2019, it found its first planet the size of Earth.


He discovered more than 4,000 exoplanets in total, of which approximately 50 were believed to be potentially habitable as of September 2018. They are the correct size and correct orbit of their star to withstand surface water and, at least theoretically, for Support of life.