Eyeball Planets Might Exist, And They're as Creepy as They Sound - Physics-Astronomy.org

Eyeball Planets Might Exist, And They're as Creepy as They Sound

You've heard of hot Jupiters. You've heard of mini-Neptunes. You've heard of super-Earths. But have you heard of Eyeball Planets? Yep - planetary scientists think there might be a type of exoplanet out there that looks disturbingly like a giant eyeball. Just sitting there. Staring.




But it's actually not as weird as it sounds - the appearance of these bodies has to do with tidal locking.
Tidal locking is when an orbiting body rotates at the same rate that it orbits. That means it always has one side facing the body it is orbiting, and the other side always facing away. The Moon, for instance, is tidally locked to Earth, that's why we never see its far side from here.
Earth isn't tidally locked to the Sun - that's why we have a day/night cycle - but we know there are exoplanets that are tidally locked to their stars. Which means one side is in perpetual day, and the other in perpetual night.
Each bathed in such different conditions, the day side might look very different from the night side. Depending how close the planet is to the star, one side could be dry, all the water burned away by stellar radiation; but the other side, in darkness, could be one huge ice cap wrapping around, terminating in a glacial ring. Something like this:


hot eyeball
(Beau.The Consortium/Rare Earth Wiki)
According to a 2013 study in the journal Astrobiology, that ring could be habitable - in perpetual twilight, with water from the melting glaciers enabling a fertile region where vegetation could grow.
That's a hot eyeball. Then, according to astronomer Sean Raymond, there's the icy eyeball, farther from its star's heat. It still has a night-side ice cap. But the star side isn't dry, barren Earth; instead it's a liquid ocean, which again could be habitable, like Earth's teeming seas.
"Hot eyeball and icy eyeball planets are extreme cases, but any planet that is tidally locked to its star is likely to look very different on its day side and its night side," Raymond noted.


"Differences could come from clouds clustered in certain areas, from preferential melting of ice on the day side or freezing of ice on the night side, or from any number of other possible sources. The galaxy may be littered with wild varieties of eyeball planets!"
Well, it's a big place out there, and giant space eyeballs certainly aren't the strangest idea ever. Who knows what could be possible?

14 comments:

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  8. I'm so exited to share my testimonies about the Good Work of Dr. Udebhu who get me cured from herpes simplex virus (HSV1&2) with his herbs, I never thought that I will live on earth before the year runs out. I have been suffering from herpes, I had spent a lot of money going from one Hospital to another looking for way to get rid of this disease, the hospital have been my home everyday residence. Constant checks up have been my hobby not until this faithful day, I was searching
     through the internet, I saw a testimony on how Dr.Udebhu helped someone in curing his herpes disease using his healing
     Herbs, quickly I copied his email just to give him a test I spoke to him, he told me that he is going to provide the herbal cure to me, which he
    did, after i receive his herbs and i take it as instructed i was cure permanently from herpes my herpes disease was gone. so I decided to share my testimony, that nothing is impossible with God, God use a man to healed me. No matter what you are passing through, no matter how deadly the sickness is and no matter what the situation is God that did mine is still going to do yours, people suffering from herpes, brain tumor, kidney disease, pcos, AIDS, ALS,copd, asthma, athritis,herpes, Cancer,Hpv, any kind of disease, you can rich him now via ? Gmail address: drudebhuherbalhome@gmail.com or whatsapp +2349051254152  

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  10. I actually was told otherwise, that herpes can not be treated and that there is no way to make it go away once you have it. so I started my own research and found out it is possible to fight it.. I got a lot of information about Dr Ohikhobo here online that he could cure herpes so contacted him through his email:drohikhoboherbalcenter@gmail.com. After I receive his remedy that he sent me, it only took two weeks of me taking the remedy and I was completely cured from herpes. to me there is no disease Dr Ohikhobo can’t cure He also cures HPV and different other kind of diseases. contact him today for your own cure too.  
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    I actually was told otherwise, that herpes can not be treated and that there is no way to make it go away once you have it. so I started my own research and found out it is possible to fight it.. I got a lot of information about Dr Ohikhobo here online that he could cure herpes so contacted him through his email:drohikhoboherbalcenter@gmail.com. After I receive his remedy that he sent me, it only took two weeks of me taking the remedy and I was completely cured from herpes. to me there is no disease Dr Ohikhobo can’t cure He also cures HPV and different other kind of diseases. contact him today for your own cure too.  
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