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Astronomers appear to have caught an exoplanet – a planet orbiting another star – in the middle of a cosmic vanishing act.
Its diameter is roughly 1.7 times that of Earth. Based on its size and mass, its density is similar to Earth's, indicating that it is a rocky Earth-like orb.
But it wasn't always this small. Scientists estimate that CoRoT-7b initially tipped the cosmic scales at 100 times more mass than Earth and orbited the star at a distance of about 2.3 million miles. New findings suggest its proximity to its sun gives it a molten-hot surface temperature that is causing the planet to slowly vaporize.
If the astronomers' calculations are correct, the planet could be the first of a new class of planets, which astronomers have dubbed "evaporated remnant cores."
Ok so it evaporated, turned off the law of gravity to allow tons of material to escape it's orbit, and then just disappeared?
If this is true, than explain how the gravity did not suck in the whole planet?
Originally posted by smurfy
Maybe the planet was a gaseous giant like Jupiter with a solid core,(maybe Jupiter has a solid core too) and it is the lighter atmosphere that has been stripped. Of course I am being simplistic, but it is just a thought.
Originally posted by cmdrkeenkid
Another contributing factor would be solar winds. The Earth loses immense amounts of atmosphere annually because of this. Venus, which is even closer to the Sun, loses even more.
Also, the heat of being closer will literally boil away an atmosphere.
Originally posted by muzzleflash
1) If Earth supposedly loses atmosphere than where does it go? Wouldn't the Earth's gravity pull it back in (or the moon)?
And why isn't the atmosphere shrinking due to this? Hell by now we should have NO atmosphere at all. Science claims that our atmosphere CAME from space due to Earth's gravity sucking it in. (Not the other way around)
SO I don't buy your explanation at all.
Originally posted by dgtempe
No linky, but could it be that same planet that Steve Quayle talks about that has been observed from
antartica to travel fast towards us and then STOP dead on its heels?????
It could have backed up for some reason... wth the reason or how i dont know.
Originally posted by dgtempe
reply to post by Soylent Green Is People
I stand corrected. Now lets tell Steve
The four giant planets are comprised mostly of an outer layer of molecular hydrogen and helium and a much thicker layer of metallic hydrogen. However, each may have a small solid core as large as three to 20 Earth masses at their center.
Like Jupiter and Saturn, Neptune is one of the 'gas giant' planets, composed of a deep atmosphere around a liquid surface and sometimes a solid core.
... Neptune's core contains more rock and metal than the cores of other gas giant planets.
Jupiter illustrates why the term "gas giant" (coined by the science fiction writer James Blish) is somewhat of a misnomer. Apart from having a sizeable solid core, Jupiter also has much of its hydrogen in either liquid or, at greater depths, solid, quasi-metallic form.