Aliens may not know that there is life on Earth – scientists

(ORDO NEWS) — Scientists have conducted a new study, the results of which demonstrate that aliens can learn about Earth’s inhabitants only depending on the season on the planet during which extraterrestrial astronomers will conduct observations.

Astronomers managed to find more than five thousand exoplanets. In other words, these are objects that are located at different distances outside the solar system.

Accordingly, experts are now trying to establish whether life exists on at least one of these planets.

During the research of distant planets, modern devices were used, installed not only at ground-based observatories, but also at space observatories.

As a result, it was possible to obtain a lot of information about the composition of exoplanets and their atmospheres. At the same time, the question of the existence of life on them has not received an answer at this time.

Jean-Noel Mettler of the Swiss Technical University of Zurich is convinced that some highly developed alien civilization may also be trying to find life in the universe.

It is worth paying attention to the fact that scientists are particularly interested in infrared radiation coming from planets. Because of this, they can learn more about their composition.

Mettler determined exactly what the Earth’s radiation should look like to an observer from another planet. An interesting point was that the radiation spectra will be different all the time.

They are affected by the season of the year on the planet. In addition, the spectral characteristics of bioindicators can also be affected by the viewing angle of the means of observing aliens.

Scientists have concluded that there is no single representative sample of the thermal radiation spectrum of our planet. At the same time, there is a rather large difference in radiation over oceans and over land.

Observing the Earth becomes even more problematic due to the fact that there are too many different processes taking place on it.

If the research will be conducted once, then in this case there is a high probability that aliens will not be able to record the presence of life.

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