[Breaking] One Third of Sun-Like Stars have Earth-Sized Planets in Habitable Zone based on Kepler Da - Polidicks

[RELEASE][URL=http://arxiv.org/PS_cache/arxiv/pdf/1109/1109.4682v1.pdf]Arxiv - Terrestrial, Habitable-Zone Exoplanet Frequency from Kepler (27 pages)[/URL] [QUOTE]Data from Kepler’s first 136 days of operation are analyzed to determine the distribution of exoplanets with respect to radius, period, and host-star spectral type. The analysis is extrapolated to estimate the percentage of terrestrial, habitable-zone exoplanets. The Kepler census is assumed to be complete for bright stars (magnitude less than 14.0) having transiting planets over 0.5 Earth radius and periods less than 42 days. It is also assumed that the size distribution of planets is independent of orbital period, and that there are no hidden biases in the data. Six significant statistical results are found: there is a paucity of small planet detections around faint target stars, probably an instrumental effect; the frequency of mid-size planet detections is independent of whether the host star is bright or faint; there are significantly fewer planets detected with periods less than 3 days, compared to longer periods, almost certainly an astrophysical effect; the frequency of all planets in the population with periods less than 42 days is 29%, broken down as terrestrials 9%, ice giants 18%, and gas giants 3%; the population has a planet frequency with respect to period which follows a power-law relation dN/dP ∼ Pβ−1, with ≃ 0.71 ± 0.08; and an extrapolation to longer periods gives the frequency of terrestrial planets in the habitable zones of FGK stars as about (34 ± 14)%. Thus about one-third of FGK stars are predicted to have at least one terrestrial, habitable-zone planet. [/QUOTE] [IMG]http://3.bp.blogspot.com/-6e_gT17j_O4/ToH6kgTO-iI/AAAAAAAAMoo/2bELG0pSIjg/s1600/Kepler+exoplanets.png[/IMG] The period and radius of Kepler planets in the sample, around bright stars, are plotted. The lower right corner is relatively empty, probably owing to low SNR there, not because small planets are absent from long periods. The upper left corner is relatively sparse, in spite of an expected high SNR there, implying a deficit of large planets on short-period orbits. The left side of the diagram is relatively empty owing to an apparent paucity of planets of all sizes at periods less than 3 days. The right side of the diagram is not completely sampled in the current database, so should be ignored here. [QUOTE]In the current Kepler database (B2011), transits with periods less than 42 days for bright, “Sun-like” FGK target stars are analyzed in order to estimate the frequency of terrestrial, habitable-zone planets in the target population, giving ⊕ ≃ (34 ± 14)%. The quoted uncertainty is the formal error in projecting the numbers of short-period planets. The true uncertainty will remain unknown until Kepler observations of orbital periods in the 1000-day range become available. [/QUOTE] [/RELEASE] THE FUTURE IS BRIGHT Source: [url]http://nextbigfuture.com/2011/09/one-third-of-sun-like-stars-have-earth.html[/url]

too bad we're stuck on this planet and we're all gonna rot

cool

Chilling

[QUOTE=Crpto2007;32507739]cool[/QUOTE] Actually, they're apt to be comfortably warm around the equatorial regions and cool at the poles. Dependent on atmospheric composition and size of the planet, obviously

[QUOTE=Craigewan;32507885]Actually, they're apt to be comfortably warm around the equatorial regions and cool at the poles. Dependent on atmospheric composition and size of the planet, obviously[/QUOTE] Hot

Well, how many planets is that? My guess is A LOT. But the real questions are these; how many potential garden-worlds actually have life, and how many have sentient species on them?

we must take to the stars, through blood or word. we will reach the heavens, and conquer it's secrets

Well, with transhumanism getting widespread eventually (hopefully), and us becoming immortal, I'm sure humanity will conquer the stars, and that we all will witness it

[QUOTE=ironman17;32507914]Well, how many planets is that? My guess is A LOT. But the real questions are these; how many potential garden-worlds actually have life, and how many have sentient species on them?[/QUOTE]Just finding alien life is enough for me, sentient life is a bonus but they're also a large threat.

[QUOTE=CakeMaster7;32508047]Just finding alien life is enough for me, sentient life is a bonus but they're also a large threat.[/QUOTE] Just nuke them from orbit, that the only way to be sure

[QUOTE=CakeMaster7;32508047]Just finding alien life is enough for me, sentient life is a bonus but they're also a [b]large threat.[/b][/QUOTE] You humans are all racist.

Last year: Almost no habitable planets but even if they were FTL isn't possible so no way we'd be able to terraform them. This year: Let's FTL to all these habitable planets. :buddy:

[QUOTE=mac338;32508248]Last year: Almost no habitable planets but even if they were FTL isn't possible so no way we'd be able to terraform them. This year: Let's FTL to all these habitable planets. :buddy:[/QUOTE] Hey, the future's bright. It always is when you're as great as we are.

[QUOTE=Scar;32508005]Well, with transhumanism getting widespread eventually (hopefully), and us becoming immortal, I'm sure humanity will conquer the stars, and that we all will witness it[/QUOTE] I am hoping so much for technological immortality within our lifetime. That way I might still live to see humanity explore the stars.

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Stop dragging the FTL thing here.

This is amazing if you think that before this, everyone thought that Earth-sized planets in the Goldilocks zone were supposedly extremely rare events.

hot damn

[QUOTE=DeEz;32508385]I am hoping so much for technological immortality within our lifetime. That way I might still live to see humanity explore the stars.[/QUOTE] Trust me, buddy, we will live to see it!

[QUOTE=Scar;32508941]Trust me, buddy, we will live to see it![/QUOTE] Well, the older guys here might not, but by the time we're all forty we may have something similar.

Build a ship and strap the LHC to it then just go faster than light.

I'd like to see a graph that corresponds to these habitable planets and the radii of their orbits (1 AU = distance from the Sun to Earth = perfect for a habitable environements).

[QUOTE=markg06;32508981]Build a ship and strap the LHC to it then just go faster than light.[/QUOTE] If only it didn't require several miles of underground tunneling to function properly :v:

[QUOTE=Alex_DeLarge;32509403]If only it didn't require several miles of underground tunneling to function properly :v:[/QUOTE] Then we launch the planet itself!

[QUOTE=Cone;32509469]Then we launch the planet itself![/QUOTE] genius.gif point all particle acclerators south and take the USS Earth to alpha centauri

[QUOTE=minilandstan;32508070]You humans are all racist.[/QUOTE] I'm just saying that we don't know what could happen. If they're sentient and technologically advanced or at the very least at where we are right now for all we know the second we bring a ship near them they fire everything they've got at it. Let's not forget possibility of war, possibility of them being more powerful than us and actually conquering us and then taking us as slaves, or just pure species-ism from both species towards the other. If they're friendly, that's awesome and let's be friends, just go in cautiously and don't be surprised when they have weapons pointed at us.

Saw space title. Instantly thought of Eudoxia.