ScienceRocks
Democrat all the way!
- Banned
- #1
I predict that nearly all .7 radius or .5 mass planets In the habitable zone of there star has atmospheres and probably liquid water.
Lets look at the facts within our own solar system: Water is everywhere...Look at the outer moons of our solar system and you will find subsurface-oceans having in some cases 2-3 times the water of earth! But that''s partly because they're so far out and away from the solar winds....Mercury, our moon and mars has some water but not as much as they're small bodies and have been stripped of their liquids by the solar winds. There low gravity allows the solar winds to peal off any atmosphere.
Mars has .1 or 10% of earths mass....Wasn't able to hold onto its atmosphere but on the opposite side of things Venus has ~.815 of our mass and has a atmosphere with about 90 times the surface pressure and would utterly destroy any mission to its surface! Venus is closer to our star too.
For such planets as the earth, Venus and upwards it would take a black hole or a quasar to take away that atmosphere within my opinion. I don't think solar winds from a m-class star could do it.
Lets look at a few of our habitable extrasolar planets.
1. Proxima Cen b Radius 1.3 and a mass around 1 earth...
2. GJ 667 C c 3.8 mass and 1.4 radius. I laugh at the idea that this doesn't have a atmosphere!
3. Kepler-442 b 1.4 radius and 2.3 masses
4. GJ 3323 b 1.3 radius and 2 masses
5. Kepler-62 e 1.6 radius and 4.5 masses
6. Kepler-452 b 1.6 radius and 4.7 masses
http://exoplanetarchive.ipac.caltec...ew?objname=Kepler-452 b&type=CONFIRMED_PLANET
All the planets above are in the habitable zone and are bigger then earth on both fronts...I find it utterly impossible that any of these could be a airless rock like our moon...Lets misspell that crock right now and feel good about saying, YES they have atmosphere...No it isn't impossible that a black hole or quasar fucked them over but the odds are way against such.
I feel good about this as it is physics and observations of our own planetary system that tells me how much "force" would be needed and it is not going to happen. Some of these larger planets then earth I am more scared that their atmospheres maybe filled with lighter gases such as hydrogen or helium.
Lets look at the facts within our own solar system: Water is everywhere...Look at the outer moons of our solar system and you will find subsurface-oceans having in some cases 2-3 times the water of earth! But that''s partly because they're so far out and away from the solar winds....Mercury, our moon and mars has some water but not as much as they're small bodies and have been stripped of their liquids by the solar winds. There low gravity allows the solar winds to peal off any atmosphere.
Mars has .1 or 10% of earths mass....Wasn't able to hold onto its atmosphere but on the opposite side of things Venus has ~.815 of our mass and has a atmosphere with about 90 times the surface pressure and would utterly destroy any mission to its surface! Venus is closer to our star too.
For such planets as the earth, Venus and upwards it would take a black hole or a quasar to take away that atmosphere within my opinion. I don't think solar winds from a m-class star could do it.
Lets look at a few of our habitable extrasolar planets.
1. Proxima Cen b Radius 1.3 and a mass around 1 earth...
2. GJ 667 C c 3.8 mass and 1.4 radius. I laugh at the idea that this doesn't have a atmosphere!
3. Kepler-442 b 1.4 radius and 2.3 masses
4. GJ 3323 b 1.3 radius and 2 masses
5. Kepler-62 e 1.6 radius and 4.5 masses
6. Kepler-452 b 1.6 radius and 4.7 masses
http://exoplanetarchive.ipac.caltec...ew?objname=Kepler-452 b&type=CONFIRMED_PLANET
All the planets above are in the habitable zone and are bigger then earth on both fronts...I find it utterly impossible that any of these could be a airless rock like our moon...Lets misspell that crock right now and feel good about saying, YES they have atmosphere...No it isn't impossible that a black hole or quasar fucked them over but the odds are way against such.
I feel good about this as it is physics and observations of our own planetary system that tells me how much "force" would be needed and it is not going to happen. Some of these larger planets then earth I am more scared that their atmospheres maybe filled with lighter gases such as hydrogen or helium.