"Hydrogen Sea" exoplanet or "cradle" of extraterrestrial life

  Science and Technology Daily, Beijing, August 29 (Reporter Liu Xia) According to a recent report by the US Space Network, British scientists said that scientists looking for extraterrestrial life should expand their thinking!

The "Hydrogen Sea" is an exoplanet or the "cradle" that breeds extraterrestrial life.

This exoplanet is 2.5 times larger than the Earth, with a huge ocean of liquid water and a hydrogen-rich atmosphere. The study was published in the online edition of the Astrophysical Journal.

  So far, the probes responsible for searching for extrasolar life have mainly focused on terrestrial planets, because the Earth is the only planet we know of that has life.

But the universe is full of many kinds of planets. Although some planets have no resemblance to the earth, they may be suitable for life to thrive.

  In this new study, the researchers discovered a class of exoplanets-"Hydrogen Sea" planets.

The members of the research team said that "Hydrogen Sea" planets seem to be extremely common throughout the Milky Way galaxy. They may have similar "extreme creatures", just like creatures that can thrive in the harshest environment on Earth.

  New research points out that the size of the "Hydrogen Sea" planet is similar to that of the "Super Earth" and the gas-like "Mini Neptune", but the density is somewhere in between.

In addition, there are many types of "Hydrogen Sea" planets. Some planets orbits are very close to the host star, and some are very far away. But even on planets under such extreme conditions, life may exist.

  In addition, the "Hydrogen Sea" planet seems to be a good place to look for potential biosignal gases such as oxygen and methane.

The researchers wrote in the paper: "We found that compared with rocky exoplanets, the'hydrogen sea' planet has a larger radius and higher temperature, making these biomarkers easier to detect."

  With the help of the James Webb Space Telescope launched by NASA later this year, scientists may soon begin searching for life on the "Hydrogen Sea" planet.