Project Blue: Mission to photograph Earth-like exoplanets where humans could live

Thousands of extraterrestrials Worlds have been identified in recent years. Many of these worlds also seem to have the right size, the right shape and even the right chemical composition. These exoplanets and exomoons are not only adapted to humans, but could even be better than the Earth.

It's here that the Blue Project comes into play. It's a planned mission that aims to take pictures of the planet's most potentially habitable planet in the Alpha Centauri star system. The mission calls this the search for "Earth 2.0" – a sister planet where life can survive and thrive.

Up to now, not even one of the 3,730 exoplanets has been photographed, they have only been detected. In fact, there is so much information about exoplanets now that scientists are able to determine not only how far away is a planet from its host star, but also to know the composition of the planet, the elements of its atmosphere, and even its axial inclination.

Recent discoveries suggest that the axial inclination of a planet is as important as its proximity to its star. Even the planets in the Goldilocks Zone, where it is neither too hot nor too cold for liquid water to exist on the surface.

One of those planets that is perhaps the best match for life, but much farther away than the Alpha Centauri system is Kepler- 186f This new discovery makes this planet almost perfect for human life

Using the available information, astronomers have done simulations to study the dynamics of the planet's spin axis – measures that determine how much a planet inclines on its axis and how this inclination evolves in time. The researchers say that the Kepler-186f axial tilt is stable, almost terrestrial, with regular seasonal changes and a stable climate, as well as anything that is likely to accumulate in the water. like the seas and oceans on the surface. The CH team thinks the same can be said of Kepler-62f, a much larger 'super-terrestrial planet' that revolves around a star that is about 1200 years old. light of the Earth.

Professor Gongjie Li explains: "Mars is in the habitable zone of our solar system, but its axial inclination has been very unstable, ranging from zero to 60 degrees."

] "This instability has probably contributed to the decline of the Martian atmosphere and the evaporation of surface water."

In comparison, the Earth is stable, between 22.1 and 24.5 degrees, every 10 000 years or so, oscillating between these two points "On the stability of the axial tilt of the planets, Li said "We do not know if they own moons, but our calculations show that even without satellites, the Kepler-186f and 62f spin axes would have remained constant over tens of millions of years. "