New Study Shows How Truly Earth-Like Two Exoplanets May Be Because Of Axial Tilt

[Judi Lynn]

28 June 2018, 10:11 pm EDT By Athena Chan Tech Times

Just how Earth-like can an exoplanet be? A new study provides clues as to how two known exoplanets might have a similar axial tilt to Earth and therefore might also have regular seasons and relatively stable climates just like Earth.

Kepler-186f And Kepler-62f
Kepler-186f is an exoplanet outside the solar system that, just like Earth, is at its solar system’s habitable zone. Before it was discovered in 2014, another exoplanet, Keplet-62f, was considered the most Earth-like planet. Both planets are just at the right distance from their host stars to have water on the surface, placing them at the same zone that has allowed life to flourish on Earth.

A new study adds clues as to how these two exoplanets might be more Earth-like than previously thought, as researchers surmise that their axial tilts may also be similar to the Earth’s. By running simulations to determine the exoplanets’ spin axis dynamics, researchers of the study determined that Kepler-186f’s axial tilt is quite stable just like Earth’s, and they believe the case is also the same for Kepler-62f.

Compared to Mars, which is also in the habitable zone but whose axis is rather unstable and may vary from 0 to 60 degrees, the Earth’s axial tilt moves rather mildly between 22.1 and 24.5 degrees thanks to the moon that stabilizes its axial tilt. Though researchers do not yet know if Kepler-186f or Kepler-62f have satellites just like Earth, their calculations show that even without it, both exoplanets’ spin axes remained constant for tens of millions of years.

More:
https://www.techtimes.com/articles/231397/20180628/new-study-shows-how-truly-earth-like-two-exoplanets-may-be-because-of-axial-tilt.htm

[Doreen]

1. I pray they are not inhabital for humans.

If our race can get to them they to will be destroyed. Our race needs to fix our own planet instead of destroying others.

[Judi Lynn]

2. Other planets shouldn't have to accept this disease. That would be a hideous crime.

What useful end purpose could be effected by transporting hatred to other places?

It needs to be erradicated or transformed right here.

[Doreen]

3. You speak my feeling about this.