NASA's New Telescope Finds Exoplanet Atmosphere 124
celticryan writes "NASA's new telescope has made a promising discovery. 'As NASA's first exoplanets mission, Kepler has made a dramatic entrance on the planet-hunting scene,' said Jon Morse, director of the Science Mission Directorate's Astrophysics Division at NASA Headquarters in Washington. 'Detecting this planet's atmosphere in just the first 10 days of data is only a taste of things to come. The planet hunt is on!'"
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Re:Deju Vu? (Score:4, Informative)
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Yep, slashdot already featured coverage [slashdot.org] of the planet in question, although I guess discovering an atmosphere around it is new information..
Re:lame (Score:5, Informative)
Re:lame (Score:5, Funny)
Re:lame (Score:5, Funny)
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Kif, this poster has a strangely alluring voice - have the boy lay out my formal shorts...
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Science proceeds one step at a time. When in 10 years we are able measure the composition, make sure you come up with something else you would like to know, and remember to make a sarcastic comment about it.
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They tell us "we've detected the atmosphere" but don't tell us what the atmosphere is made of. Nice.
This being slashdot, the authors assumed you would come to your own determination that the atmosphere was in fact some sort of gas and didn't feel the need to elaborate.
run CancelWiseassMode($me)
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I just assumed he read this part of the article:
Although this is already the highest precision ever obtained for an observation of this star, Kepler will be even more precise after analysis software being developed for the mission is completed.
And interpreted it to mean that they'd "know" what the atmosphere was composed of once they finished writing the software that would "interpret" the data.
But still, the article didn't talk about composition such as 80% nitrogen or anything. Granted, they might be able to determine that based on the signatures they can now graph, but it is a little misleading. Still cool tech, but misleading title.
Hot Jupiter, yawn (Score:1, Insightful)
The public's attention for exoplanets is already waning.
One day I expect Kepler to discover an Earth-like planet with an Earth-like atmosphere and the public won't even care. Getting funding to image the surface of that planet will be an uphill battle and even if the returned images show undoubted proof of intelligent life, people still won't care.
Can you imagine that?
Re:Hot Jupiter, yawn (Score:5, Insightful)
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So will I. But the rest of the world will see the coverage of such an event after the sports and the weather, if at all. If you think that's acceptable, fine, but I'd rather see what I can do to make sure it isn't the case.
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Imaging the surface of an exoplanet may be more of a challenge than finding an interesting one, given the distance
I remember a proposal for an orbital pinhole camera space telescope. The imager satellite was quite a distance from the screen with the "pinhole" in it. It was said that it would be able to resolve weather patterns and any vegetation covers.
Re:Hot Jupiter, yawn (Score:4, Informative)
That would be the New Worlds telescope.
http://en.wikipedia.org/wiki/New_Worlds_Mission [wikipedia.org]
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I suppose you think no one anywhere cares about anything, the future will be worse than the past, and our society is heading downhill at even ever-increasing speed.
Yes. Now get off my lawn.
Re:Hot Jupiter, yawn (Score:5, Funny)
One day I expect Kepler to discover an Earth-like planet with an Earth-like atmosphere and the public won't even care. Getting funding to image the surface of that planet will be an uphill battle and even if the returned images show undoubted proof of intelligent life, people still won't care.
Sadly, I think you're right.
NASA will have to pay money to Big Media for a spot on a reality show. Two morbidly obese women will be mud wrestling... the camera pulls back and Paris Hilton is now in the foreground saying "Life on other planets is hot! Drink Red Bull!"
.
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The public's attention for exoplanets is already waning.
One day I expect Kepler to discover an Earth-like planet with an Earth-like atmosphere and the public won't even care. Getting funding to image the surface of that planet will be an uphill battle and even if the returned images show undoubted proof of intelligent life, people still won't care.
Can you imagine that?
no
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The public's attention for exoplanets is already waning.
The public don't know what exoplanets are. They aren't interested in them at all.
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No, no, no, the public will care, but a quarter of them will believe it was really shot on a soundstage in Nevada.
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By the time they actually get around to getting the images, it won't be filmed in Nevada, but outsourced to India. We'll have a Bollywood version of the moon landing....all that singing and dancing -- in space suits.
Re:Hot Jupiter, yawn (Score:5, Insightful)
No, I really can't imagine that.
Imagine the headline "Life Discovered on Earth-like Planet 25 light years away". Your typical newspaper-reading/internet-news-scouring/cable-news-watching connected person will know of it immediately. They may not understand the details, they may not have followed the whole saga, but they'll know and they'll find it interesting, because its clear-cut, easy to understand, and impressive.
After that, the last connected folks will hear about it through discussion. "So did you hear about that planet they found with life?" makes a much better conversation than "So what about this weather?", yet is something you might say to someone in the elevator.
Think of how much the general public cared about the non-issue of re-classifying Pluto. Discovery of extra-terrestrial life is much more important and just as easy to understand, and is such a leap beyond our current knowledge. That's not say that it would be the existential, world-changing discovery that I believe proof of intelligent life would be, but people would care.
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If Kepler does find a planet less than 100 light years away that is a rocky-crust planet with an atmospheric gas mix very close to that of Earth, it would be a HUGE breakthrough.
The reason is simple: it means we have found a planet that could just about support life as we know it--and it's possible that this discovered planet may have life that has evolved far beyond the microbial stage.
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I think more to the point, discovery of non-Earth life would have an immediate effect on most people's lives.
A common theme of fundamentalist beliefs is that Man is a particularly special creation who was put on an Earth that in turn is a very special place created for Man's benefit. And that those who recognize these special relationships have an obligation to force everyone else into behaving properly according to their belief system. The politics of these fundamentalist groups impacts just about every
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That's not say that it would be the existential, world-changing discovery that I believe proof of intelligent life would be, but people would care.
Plus if the discoverers manage to, ummm... let slip... yesss, let slip... that there was possible evidence of the presence of WoMD on the planet then there'd be no shortage of funding to find ways to go visit the planet.
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Without decent pictures this story will not go far beyond the science pages. A graph showing distribution of elements isn't the most attention-grabbing shot I can think of.
That's why the media industry uses 'artist's illustrations' (like this [nasa.gov]), along with other existing images and resources, such as the telescope and a video of its launch.
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Imagine you're living on an island in the pacific. You have a pretty good technology base but you've never seen a sailing ship before. You have fishing boats of course and you consider that maybe there might be other people out there over the horizon but you have no idea how to go farther than a few miles offshore. Imagine your people managed to make a telescope that could see over that horizon and saw a society that had similar technology to your own. Would you honestly sit and wait until they invented
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And don't underestimate the military implications of a good pile of coconuts!
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Hmmmm. I guess some people are 'curious' and some aren't - luckily for the human race there are enough 'curious' folks out there that those 'stay-at-homers' can rely on others to do the _essential_ exploring for them! Without some people to push the boundaries we'd all still be living in caves in Africa!
At some point your island simply won't be big enough to grow enough coconuts to support the population and you'll be wishing someone was far-sighted (or maybe just "
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As for the idea that pictures of exoplanets will solve any part of the problems we need solved here on earth.. I find that hard to believe. We are not speaking of breaking new frontiers here, we are just doing more of the same. Which is fine by itself, my point is just that for the general publi
Re:Hot Jupiter, yawn (Score:5, Insightful)
In fact, science is cheap, comparing to the lumps of money we waste on:
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Hmmm
Human Nature to Yawn (Score:1)
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fuck you faggot (yeah i fed the troll, sue me)
Impressive light curve! Kepler reboots? (Score:5, Informative)
If you get a chance to look at TFA, you'll see a comparison between the light curve as captured by ground based observatories and by Kepler. Makes a pretty compelling statement for doing observations in space, no noise! (Actually there is noise but you have to really zoom into the data like they do on the Kepler web site).
Anyway, I've been following the Kepler program on their web site and have read of a couple of "reboots" where they had to put the spacecraft into safe mode. Anyone know if they've found/fixed the problem? It's not good to have a program specifically designed for 3+ years of non-stop continuous observation to have intermittent gaps in its observations!
It's amazing to think that within a few years we should know if there are plentiful earth sized planets in the "habitable zones" around stars! Extrapolating from today's news release, maybe we'll even know if they have atmospheres! (Does anyone know how much more difficult it would be to "see" an atmosphere around an earth sized planet as opposed to a "hot jupiter"?).
Re:Impressive light curve! Kepler reboots? (Score:5, Funny)
Anyway, I've been following the Kepler program on their web site and have read of a couple of "reboots" where they had to put the spacecraft into safe mode. Anyone know if they've found/fixed the problem? It's not good to have a program specifically designed for 3+ years of non-stop continuous observation to have intermittent gaps in its observations!
NASA should have unticked the "apply updates automatically" those service packs are a killer.
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From an operational standpoint you want to have lots of things which trigger safe mode. I don't think you should treat going to safe mode as a bad thing.
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What the fuck kind of operations do you run? Don't let me near them, please, they might kill me.
Safe mode is bad. It means something fucked up. That it fails safe is obviously good engineering, but that it fails in the first place is a very bad thing.
If your design is constantly tripping safe mode, then it's a shitty ass design and you probably fucked up the fail safe too, and anything critical in/near your system is bound to suffer irreparable damage eventually.
I seriously hope you don't run a gas plant
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...intermittent gaps in its observations!
That's the CIA covering up the aliens looking back at us.
Who leaves Atlantis off the maps?
Who keeps the Martians under wraps?
We do! We do!
Re:Impressive light curve! Kepler reboots? (Score:5, Informative)
http://www.newscientist.com/article/dn17565-kepler-spacecraft-sees-its-first-exoplanets.html
Quoting:
The prime suspects are energetic charged particles known as cosmic rays. Earth's atmosphere shields us from these particles' potentially dangerous effects, but they bombard spacecraft at a rate of thousands per second.
If a cosmic ray hits a vulnerable spot in Kepler's electronics, it could cause a voltage spike that mimics a request from ground controllers to reboot the spacecraft's computer. "It could be that the computer is just chugging along doing everything fine, and then a cosmic ray comes sailing through," Fanson says. "All of a sudden it thinks it's been asked to reset, so it resets."
Alternatively, cosmic rays could toggle chips in the computer's memory, making it misinterpret instructions. The reboots could also be caused by a bug in the software, or half a dozen other things, Fanson says. "There are many, many things you have to look at that could be causing it. These systems are very complex," he says.
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Is Kepler in some sort of particularly vulnerable orbit?
Granted the electronics in Kepler are probably more sophisticated than many spaceborne systems, but I'd imagine the protections would have been planned to match.
I mean, we've been shielding spacecraft from Cosmic Rays for a LONG time, why would this suddenly be an issue? I don't hear of similar reboots in anything from Apollo to Cassini.
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Yes, Kepler is in an unusual orbit. [nasa.gov] It's not orbiting Earth, it's orbiting the Sun, although it's designed to stay close to the Earth over its mission lifetime. But it is only receiving partial protection by the Earth's magnetosphere. It's possible that it will be more vulnerable to single event upsets (SEUs) [wikipedia.org] as time goes on.
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The mission has a number of safe mode days per year budgeted. It's hard to keep everything running when cosmic rays are raining down on your computer.
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Thanks AC, didn't know that! Makes me feel a bit better.
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(Does anyone know how much more difficult it would be to "see" an atmosphere around an earth sized planet as opposed to a "hot jupiter"?).
It's relatively easy to see the atmosphere of any planet. As they say in TFA, Earth-like planets should only be 1.5 times more difficult to see that gas giants.
Kepler looks at spectra from the stars to see the drop in light associated with a planetary transit in front of the star. When the planet is in front of the star, you can see all manner of absorption lines in the spectra from elements in the planet's atmosphere. The big one you look for is water, and then you march down the common hydrocarbons a
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Basically it is super big, super hot gas giant continually roasted by the nearby star. Speculating about the composition of its atmosphere or possible biosphere are therefore dashed.
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That's no planet... (Score:1, Offtopic)
[NO CARRIER] (Score:1)
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not telling
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no text.
usually means the entirety of the post is in the subject line, or sometimes used lazily as a 'me too!' post in reply to a request etc.
What's not atmosphere on this planet? (Score:3, Insightful)
With a day side temperature of more than 4300 degrees, I'm trying to think of what on the planet would not actually be flat out molten or even vaporized.
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Its a gas giant. Everything is vaporized except for possible a very dense metal core.
Hunt is on? (Score:2)
In the ot
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This reminds me of the first time I went fossil hunting. I found a trilobite by accident. I haven't found one since. This planet is a fluke until consistent results can be established. I wish them the best of luck.
Lots of exoplanets [wikipedia.org] have been found.
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Well It is a good thing that planet hunters are better at finding things than you, seeing as they have found 358 extrasolar planets. From what I hear, it is much harder to observe the wobble of a star's red shift or see the wink of a star as a planet travels between us and it, than it is to break open a rock in a known trilobite bed.
Source http://exoplanet.eu/catalog.php [exoplanet.eu]
Re:Reminds me... (Score:4, Informative)
That is one of the most ridiculous statements I have ever heard. It's a completely invalid comparison. The planet was already known to have a transiting exoplanet so it's not like it was dumb luck. As someone pointed out this verifies that everything on the spacecraft is working properly. To date, lots of transiting exoplanets have been found and it's not luck, it's statistics that tell us there will be more.
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You might be right that this planet is a fluke, but I see absolutely no reason to imagine it is. A fluke is not just the first in a series but something unexpected or unlikely, and this is absolutely neither. Care to elaborate on your pessimism, or are you just trolling?
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Nope. Not trolling. I would have done that under AC. Perhaps "fluke" was the wrong term but a suitable substitute escapes me.
I am familiar with the technology and I do find it impressive. I just want to see consistent results before declaring it a complete success. Next week it could find a new exoplanet all on its own and be as successful as the Hubble. No one knows for a fact.
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This reminds me of the first time I went fossil hunting. I found a trilobite by accident.
If you go out fossil hunting and actually find a fossil, that's not an accident. Because you were deliberately looking for it, you see?
If you'd gone out shopping and found a fossil, that would be classified as an accident. I do hope this helps to clarify the situation.
i know these aren't original thoughts (Score:2)
but i wonder if anyone has made a study of this:
fruitful pressure/ temperature triple points to look for
for example, earth is the right temperature/ pressure for water to be a gas/ solid/ liquid all over
this allows for complex thermodynamic interflow and mixing and dynamicism, which can lead to life
additionally, water is polar, so unlike methane, for example, chemical interactions can be even more complex
additionally, water is a very common chemical in the universe
so what i'm getting at: other fruitful trip
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yeah but methane isn't polar (Score:2)
so the chemistry there couldn't get very complex
so its most probably dead
now the triple point of ammonia on the other hand...
wow (Score:1)
I guess the way to approach this would be (Score:2)
Hey Baby.. I guess that your not from around here?
now if we only could figure out (Score:1)
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The existence of life can in principle be inferred from the composition of a planets' atmosphere, which could be determined spectroscopically. E.g. earths' atmosphere is oxygen-rich, which would not be possible without life (oxygen is agressive, and would disappear quickly by forming compounds with surface minerals, if it wasn't replenished by photosynthesis).
There is research on ways to do this, and on the kind of instruments that would be required. However, this research focuses on life as we know it,
Sweet Picture (Score:1)
Inefficient use of wealth (Score:1)
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Galileo's scientific discoveries broke medieval Europe free of the shackles of Church doctrine, and over the next hundred years did more to improve the lives of the average European than any redistribution of the Church's tremendous wealth could have done. Not that the Church was going to actually do anything to materially benefit the population: that wealth was after all a necessary part of the greater glory of God. Oh, and also this: every pious person would get their reward in Heaven. You simply had to h
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That is a very interesting new approach to old history! Made me want to crosscheck my decades-old studies of the guy's life against anything new that might turn up on a Google. Didn't find anything to contradict what I had learned of him earlier.
Galileo became an adamant proponent of what we now call the scientific method and condemned the practice of teaching physics by authority that was the accepted approach at the time. The prime authority on physics and many other studies were translations of Aristot
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I don't have the link anymore, but here's a cut and paste. The article does cite a book, which in part appears to address old history.
---
Of course, he is referring to the story everyone learns in grade school; a lovable old scientist is condemned to Hell for refusing to deny the truth of the cosmos (in this case the Copernican notion of heliocentricity -- the sun's the center of things rather than the earth). The story is employed to teach children that closed-minded religious people are afraid of science
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Since the bulk of parent post is lifted in its entirety from National Review Online's "Goldberg File" editorial of May 24, 1999 [nationalreview.com], I will work from that source rather than the parent post.
First thing worth noting: TFA starts with this lead-in paragraph:
ENLIGHTENMENT SPIN: THE GALILEO MYTH
The Washington Times reports a very nice story this morning. Catholic scientists, or scientists who are Catholic, whatever makes you more comfortable, are trying to combat the notion that the Church is anti-science. "The Galileo incident has made the Church a whipping boy," Thomas P. Sheahen of the Catholic Association of Scientists and Engineers told the paper.
Goldberg is playing off of this article: Catholic scientists look to bridge theory, theology: Hope to bring morality into largely atheistic disciplines [questia.com], written by Larry Witham. I haven't read the article since it requires me to register fro a FREE trial on w
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[snip]
" ... But that's a general thing, not specific to the question at hand, which is whether the Catholic Church actively persecuted Galileo for his new method of seeking the truth, or whether the Church simply lacked the moral fiber to stand up to members of the academic community who demanded that the Church shut Galileo's mouth.
I have no argument with this. I would only add, as a balance to your legitimate criticisms and to amplify my previous remarks, that the Church was composed of people with the s
Amazing (Score:1)
The beauty of a plotted curve (Score:2, Informative)
And I simply say that gravity is as much a signature of something's existence as a direct photograph of it, we have many ways we can measure something is there. Just as you do if you live in a cabin in the woods, you
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Wow (Score:1)