Discovered evidence that 'Solar System 2.0' has water

The Solar System 2.0 is the Trappist-1 star system of 7 Earth-sized planets, about 40 light-years away, discovered by scientists in early 2017. In particular, there are few most 3 planets have the potential to own liquid water. After that, a lot of doubts about the ability of these planets to sustain life were given.

1. NASA announced concussion: 7 Earth-sized planets could have life
2. 5 interesting facts about TRAPPIST-1, solar system version 2.0

But recently, a group of scientists led by Vincent Bourrier - a Swiss astronomer at Observatoire de Genève University observed several planets in the star-planet system Trappist-1 containing the most important thing to life maintenance - water.

Discovered evidence that 'Solar System 2.0' has water Picture 1

Specifically, scientists used the spectral imaging system (STIS) from the Hubble Space Telescope to explore the interaction of ultraviolet rays between planets in the system. Ultraviolet rays can break down the vapor molecules in the atmosphere, forming hydrogen and oxygen which reveal to them about their atmospheric environment. In addition, STIS can help them identify the presence of hydrogen around the atmosphere of each planet, and thus prove that there is steam.

From the results, experts identified Trappist-1b and Trappist-1c, the two closest planets that are most likely to contain a lot of water. They said it is very possible that the amount of water on these two planets is equivalent to 20 times the amount of water in the oceans on Earth.

Discovered evidence that 'Solar System 2.0' has water Picture 2 Position 7 planets in Tranppist - 1.

However, according to Bourrier, the remaining planets may not be so lucky. All three planets of the Goldilock region are 1e, 1f and 1g more likely to have water on the surface but have lost a lot.

All of these are just the scientists' group's hypothesis for telescopes and data, but they have not made any conclusions. But even if the Trappist-1 system contains water, it is unlikely that life could exist on these planets. Because they are so close to the host star, and the solar storm can make things impossible.

Even so, scientists are continuing to study, because this is still the greatest hope of people.