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Life on other planets theorists, take a hit, scientifically
Posted on 3/3/14 at 3:21 pm
Posted on 3/3/14 at 3:21 pm
quote:
Just last week, the not entirely dead Kepler space telescope discovered over 700 new exoplanets, many of those falling into the super Earth category. A super Earth is a planet that is significantly larger than Earth, but has a similar rocky composition to our planet and falls within its star’s habitable zone. Unfortunately, astronomers have determined that these super Earths probably do not harbor life, dashing hopes that aliens may reside upon their surfaces.
These findings come after astronomers at the Space Research Institute at the Austrian Academy of Sciences modeled some of these super Earths. Planets that are actually closer to Earth’s size are probably the only planets capable of sustaining life as we know it, as any rocky planet bigger than that probably has too much hydrogen in its atmosphere. Generally speaking, when such a large planet forms, its gravity draws hydrogen into its atmosphere and keeps it there. This thick atmosphere creates a lot of pressure on the surface of the planet, meaning that life on it would be nearly impossible.
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Posted on 3/3/14 at 3:24 pm to Alahunter
quote:
Life on other planets theorists, take a hit, scientifically
Yeah a hit. We now know that there is not life on a few of the planets in a near infinite space.
Solid thread title.
Posted on 3/3/14 at 3:25 pm to Alahunter
quote:
Life on other planets theorists, take a hit, scientifically
just... Posted on 3/3/14 at 3:30 pm to Alahunter
This is also under the presumption that there is life specifically correlated to us within those areas. Water, as described in another thread, is an extremely harsh environment for life to evolve from.
Methane like that found at the oceanic floor and on some of the moons in our own solar system, however, are excellent conduits for life.
Methane like that found at the oceanic floor and on some of the moons in our own solar system, however, are excellent conduits for life.
Posted on 3/3/14 at 3:49 pm to Alahunter
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Planets that are actually closer to Earth’s size are probably the only planets capable of sustaining life as we know it
Do we know everything..... Nope
Posted on 3/3/14 at 3:49 pm to Alahunter
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700
On a galactic scale, this number is beyond insignificant
Posted on 3/3/14 at 3:52 pm to Alahunter
Why are you so against there being life on other planets, Hunter?
Posted on 3/3/14 at 3:54 pm to Alahunter
quote:
These findings come after astronomers at the Space Research Institute at the Austrian Academy of Sciences modeled some of these super Earths.
Their conclusions are only as good as their models. Garbage in, garbage out.
And I'm assuming, based on how little we know, that most of the models are garbage.
That doesn't mean there is or isn't life on those planets, just that we really have zero clue.
Posted on 3/3/14 at 3:55 pm to Alahunter
pretty good chance of life throughout the milky way galaxy imo
WASHINGTON — Space is vast, but it may not be so lonely after all: A study finds the Milky Way is teeming with billions of planets that are about the size of Earth, orbit stars just like our sun, and exist in the Goldilocks zone — not too hot and not too cold for life.
Astronomers using NASA data have calculated for the first time that in our galaxy alone, there are at least 8.8 billion stars with Earth-size planets in the habitable temperature zone.
The study was published Monday in the journal Proceedings of the National Academy of Sciences.
For perspective, that's more Earth-like planets than there are people on Earth.
As for what it says about the odds that there is life somewhere out there, it means "just in our Milky Way galaxy alone, that's 8.8 billion throws of the biological dice," said study co-author Geoff Marcy, a longtime planet hunter from the University of California at Berkeley.
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WASHINGTON — Space is vast, but it may not be so lonely after all: A study finds the Milky Way is teeming with billions of planets that are about the size of Earth, orbit stars just like our sun, and exist in the Goldilocks zone — not too hot and not too cold for life.
Astronomers using NASA data have calculated for the first time that in our galaxy alone, there are at least 8.8 billion stars with Earth-size planets in the habitable temperature zone.
The study was published Monday in the journal Proceedings of the National Academy of Sciences.
For perspective, that's more Earth-like planets than there are people on Earth.
As for what it says about the odds that there is life somewhere out there, it means "just in our Milky Way galaxy alone, that's 8.8 billion throws of the biological dice," said study co-author Geoff Marcy, a longtime planet hunter from the University of California at Berkeley.
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Posted on 3/3/14 at 3:56 pm to Alahunter
Posted on 3/3/14 at 4:38 pm to Alahunter
700 down, 24632247958963247974223689965314699642479799532147997979435666885357324 to go!
Posted on 3/3/14 at 4:40 pm to Alahunter
There are trillions upon trillion of planets. I would bet there is life on thousands or millions of planets.
Posted on 3/3/14 at 6:53 pm to Alahunter
Good grief, the article is a big FAIL. I stopped reading after the first sentence. The author did not do her homework. The Kepler telescope stopped "discovering" planets back in May when its aiming mechanism stopped working.
The "discoveries" of the 700+ new planets came from data that will take more than two years to analyze. There will be many more planets "discovered" from this data over the next two years. While Kepler is not totally dead, it is not functioning in a planet discovery mode. NASA hopes to find some use for the crippled telescope.
I hate it when someone publishes an article and makes assumptions based on little knowledge. The author has discredited herself a lot.
The "discoveries" of the 700+ new planets came from data that will take more than two years to analyze. There will be many more planets "discovered" from this data over the next two years. While Kepler is not totally dead, it is not functioning in a planet discovery mode. NASA hopes to find some use for the crippled telescope.
I hate it when someone publishes an article and makes assumptions based on little knowledge. The author has discredited herself a lot.
Posted on 3/3/14 at 7:02 pm to Alahunter
If the universe is infinite, then there are an infinite number of planets and an infinite number of planets with life, and an infinite number of people on their planet somewhere who look just like we do.
Posted on 3/3/14 at 7:29 pm to Alahunter
Intelligent life on other planets*
Those planets are probably bacteria feeding grounds
Those planets are probably bacteria feeding grounds
Posted on 3/3/14 at 8:13 pm to Alahunter
I've seen too many episodes of Star Trek to ever believe you can eliminate that many planets all at once.
Posted on 3/3/14 at 10:07 pm to Alahunter
quote:
Life on other planets theorists, take a hit, scientifically
What an absurd title...a rough estimate of the number of planets in the Universe is 10000000000000000000000000
That's 24 0's
Posted on 3/4/14 at 12:22 am to Alahunter
This thread was strange.
Posted on 3/4/14 at 11:54 am to Alahunter
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capable of sustaining life as we know it
But we don't know shite about everything
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