Really, really hot water

Exoplanet 'Waterworld' GJ1214b David A. Aguilar (CfA)

The James Webb Space Telescope may someday put Hubble out of business, but until then NASA’s old standby is still making new discoveries. Today, that comes to us in the form of the first exoplanet “waterworld”--a water-covered planet shrouded by a dense, steamy atmosphere, the first confirmed planet of its kind.

The planet, known as GJ1214b, was discovered in 2009 by ground-based observations. But at that time it was difficult to glean much from the data other than the fact that the planet was indeed out there orbiting a red dwarf and is roughly 2.7 times Earth’s diameter. But its nearness to its star--just 1.3 miles away--meant that scientists could be reasonably sure it is hot there, likely around 450 degrees.

When astronomers from Harvard-Smithsonian Center for Astrophysics more recently turned Hubble’s Wide Field Camera 3 toward GJ1214b while it was transiting its host star, they were able to analyze the light passing through the atmosphere for the first time. That analysis suggests that GJ1214b is swathed in a fairly consistent and dense atmosphere of water vapor. Further analysis of size and mass (and thus density) further suggest that GJ1214b contains more water than Earth, and less rock.

That’s not to say GJ1214b is the kind of watery paradise in which you’d want to go sailing, or even face down a cartel of hapless but well-armed future-thugs. Even if GJ1214b is exactly what the Hubble data suggests it is, it’s very hot there and the high pressures and temperatures would make for some conditions vastly different than those on Earth. Superfluid water and other exotic phenomena likely occur there regularly--things that would be cool to see from a distance but highly incompatible with life as we know it on this planet.

The CfA astronomers responsible for the Hubble research speculate that GJ1214b probably formed further away from its star where water ice is more plentiful. It then resettled into a closer orbit, becoming the steamy sphere Hubble sees today. That means at some point this waterworld would have had to pass through the star’s habitable zone, though there’s no telling how long it hung around there. More at CfA.

[Harvard-Smithsonian Center for Astrophysics]

13 Comments

"just 1.3 miles away" seems to be a typo. Otherwise I'd expect it to be hotter, and just part of the star. :)

Yeah, it's definitely a typo, Harvard's Press Release says, "It orbits a red-dwarf star every 38 hours at a distance of 1.3 million miles, giving it an estimated temperature of 450 ° Fahrenheit."

I expected so, but it was humorous to envision!

Just imagine all the planets that rotate around a sun that is not in our plane of view as they pass in front of the star. Statically speaking that increases the quantity of goldylocks planets by a lot, of the ones we cannot see!
Simply amazing!!!!!!!!!

I suppose the Annunaki and friends of Poseidon have settled on this planet long ago. There are very adept at living in our oceans, unless Brother Zeus said no to the invasion! With Brother Zeus god above and Poseidon brother of the deep blue and underworld, the whole concept implies parents and a hierocracy of family elsewhere in space.

Does it disturb readers to speak about Annunaki, which was recorded historically by Sumerians and many cultures around the word and religiously too and at the same time we are reading about goldylocks planets and with science always considering the possibility of life somewhere else in the COSMOS?

The Mayans created a 5200 year cycle calendar that revolves around a 360 day year. The big cycle of this calendar ends December 21st 2012. And the Sumerians also used a 360 day year calendar. Both cultures had streets, studied the stars, had mathematics, a written language and built pyramids. Both cultures were remote from each other, too.

So who was communicating between the two cultures from above?

.............................
Science sees no further than what it can sense.
Religion sees beyond the senses.

@Robot
You forget that the Mayans lived thousands of years after the Sumerians, and the Egyptians and pretty much every other major empire used a 360 or 365 day calendar. This is because the seasons follow a 365 day cycle, not because ancient aliens told the people how to arrange their calendars.
Your whole premise of ancient aliens settling earth sounds remarkably close to a religion, but with aliens instead of gods. It has about as much evidence going for it as most other religions, to; in fact, it has less going for it than some.
Oh, and, if you read the article, this planet's 'oceans' are all vaporized, and 450%. Good luck having anything that can live on earth, or an earth-like planet, survive over there.
-Spouting a fountain of nonsense since 1995-

Actually Kepler found the Gliese 581 galaxy. Gliese is said to be home to the first found water world. The good news is this planet is near the goldilocks zone; another gliese planet is inside of the habitable zone and is suppose to be bigger than the earth. Hubble could have found its first water world, but Kepler found its first some time ago. I guess it does not matter who found what first. They are both owned by the same organization.

Lord Elliot the...
Thanks, you funny. Science can believe and search for living beings from outerspace, but its wrong to look for it in human history or religion. Oh yea, you funny. ;)

.............................
Science sees no further than what it can sense.
Religion sees beyond the senses.

Dit...dit dit... Dit Dit. NEWS FLASH!!!!!
Here now is an interview with Mr. Science.
Hello Mr. Science, can you tell us earthlings a little bit about your gigantic and new discovery in outerspace.

Well, with our new neutrino powered flux capacitor super space orbiting COSMOS observatory, we just found an intelligent alien life force society in the zip-e-do-da zone of space. As we focus our observatory we found a extremely highly advance society. After that discover we point hundred of our communication satellites towards there zone and gave a big Hello!

Yes, yes, go on, what happen? Did they reply? What did they say?

Oh yes, well,, they did reply and it seems with some kind of technology of theirs they can understand us perfectly and speak to us too. We had a marvelous conversation, exchange many cooking recipes. The conversation was so pleasant and warm.

AMAZING! SIMPLY AMAZING!

So Mr. Science, after observing these super advance aliens across the Cosmic zone of zip-e-do-da space and have a long exchange of conversations, how old would you say this outer space race of aliens are?

What is the question? I do not seem to understand the question?

Oh, how old they are? Well we of the science community for the betterment of society on earth have decided to tell everyone that this community was born today!!!

TODAY?!?! What do you mean they were born today, sir?!

Well, you see, we get a lot of government grants towards the study of science and a great many of these people are history buffs and have religious back grounds. Soooooo...

So as to not rock the boat and loose any type of government grants and upset the political worlds, we the science community have decided the NEW ALIEN RACE we found was born today!

Thank you! Thank you! No more questions! Much science to study, have to go, bu bye, thank you! Thank you!

.............................
Science sees no further than what it can sense.
Religion sees beyond the senses.

@Robot
My point was the chances of aliens finding us in the short time we've been around is so infinitesimally small that it's best to assume it didn't happen. An equation I just cobbled together is:((frequency of searches over length of human civilization*drake equation/their distance from earth)*(number of stars in the galaxy)*whether they decide to interfere or not

My numbers come up: 1 in every 1.35*10^10 times

Also, what evidence is their of ancient aliens visiting earth? I think the 'religion' centers of your brain have focused to aliens, because their's not much else filling them.

Finally, I'm not quite sure what the point of that story you wrote was. Could you please explain in a non-allegory? I'm not particularly clever in regards to deciphering those...

-Spouting a fountain of nonsense since 1995-

It is now painfully obvious that Robot is the old Bubba. That dit...dit...dit...NEWS FLASH thing Robot wrote is the EXACT same thing Bubba used to do, to the T. And the nonsense ramblings are spot on Bubba as well.

Robot, AKA Bubba, don't you have other web forums to troll?

Even though this new planet is extrememly hot it could very easily harbor life. Life as we understand it absolutely needs water. Even if that water is extremely hot life can adapt to live in those conditions. All it takes is something very small like bacteria and single celled organisms to eventually evolve into complex organism. I would bet money that life exists on that planet, just not life that would be able to survive here on earth or vise versa.

As for ancient aliens theory, it does raise some good questions and makes you think. It still requires a bit of faith to believe in though like all religions.

@Army Juggernaut, Lord Elliot the...
I tend to read a lot of anything and everything with the addition of keeping an open mind. So yes, I tend to go off on tangents, stuff happens.

Food for thought, if one day you get a new perspective in thinking, it will not burn your eyes. In fact, you may find yourself seeing clearer!

.............................
Science sees no further than what it can sense.
Religion sees beyond the senses.

Correction.
((frequency of searches over length of human civilization*drake equation - their distance from earth)/(number of stars in the galaxy)/whether they decide to interfere or not

-Spouting a fountain of nonsense since 1995-



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