Life in space: researchers find 24 extremely habitable planets

Is the earth perhaps not at all the best planet for life? Researchers have now discovered 24 Earth-like planets that have the best conditions for life. Could we live there?

Alien planets solar system on a background spiral galaxy

On 24 exoplanets very good conditions for life are to prevail.

Outside of our solar system there are 24 planet constellations, which have a climate similar to that on Earth. They are even a lot bigger than our planet. With this message one thinks nevertheless: Nothing like there! But that might be difficult even for the great visionary Elon Musk. Because the newly discovered planets are light years away.

Scientists have long wondered if there are habitable planets in other planetary systems. These planets outside of our solar system are called Exoplanets.

A Washington State University study has identified a total of 4.000 such exhibits discovered. Space scientists identify 24 of them as habitable. An enormous surprise. Again and again there are amazing discoveries, like traces of extraterrestrial life on Venus.

Now the space researchers go even further: The conditions on the new planets could be even better than on the earth. New telescopes are to provide information and find out more about the constellations in space.

On the trail of super-inhabitable worlds

One of the researchers is Dirk Schulze-Makuch, who works at Washington State University in the USA. Together with Rene Heller of the Max Planck Institute for Solar System Research in Gottingen, Germany, and Edward Guinan of Villanova University in Pennsylvania, U.S., he has collected data from more than 4.500 known planets outside the solar system were analyzed Always on the trail of habitable worlds. In the scientific journal "Astrobiology" the 24 possible worlds were presented.

According to the study the planets would be older, larger and possibly also more humid than the earth. Habitable does not mean in this case however that there is also life there. But these selected planets show the basis for it. The scientists initially focused on planets orbiting their stars in the so-called habitable zone. In this zone temperatures are possible on the surface of a planet, so that water flows in liquid form. In addition, they should be rocky planets- like Earth and Mars.

Super-inhabitable planets: How do the researchers arrive at the assumption?

The team assumes that the conditions for life could be still much better. But why? This is, for example, because the central star of the 24 planets could be more stable and has already existed longer than the sun. At ten billion years, this has a comparatively short life span. G stars similar to our sun, could therefore be the fuel before life emerges on a planet. The scientists searched specifically for cooler G stars in the data sets- and were found 24x.

Job search for engineers

The ideal age of the planets is described by the researchers as between five and eight billion years old. Äolder planets are generally better, but they should also not be too old, since they have exhausted their internal geothermal heat. Our earth is "only 4.5 billion years old.

24 habitable planets: What about water?

But what about water?? All life needs water. Planets that are slightly warmer than Earth, have more moisture and an average surface temperature of about five degrees Celsius could be quite habitable. After all, we know that there is more biodiversity on Earth in warmer and wetter tropical rainforests than in other areas.

Journey of 100 light years

Among the 24 planets, the researchers were able to fully assign most of the above criteria to only one world. However, this exoplanet is not around the corner: A spaceship would have to travel more than 100 light years to relocate humans.

„Now, when the next generation of telescopes launches, it’s important to have good observing targets,", Schulze-Makuch says.

In the next few years, the James Web Space Telescope, the LUVIOR Space Observatory, and ESA’s Plato mission are expected to provide.

After the 24 defined super-inhabitable planets, researchers assume many more unknown treasures in outer space. In our galaxy still many further super earths and planets whirr.

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