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shunyadragon
01-07-2015, 12:56 PM
Newfound Exoplanets Are Most Earth-Like Yet
After five years of searching, researchers using data from NASA's exoplanet-hunting Kepler spacecraft have discovered what look to be two of the most Earth-like worlds yet. Dubbed Kepler 438 b and Kepler 442 b, both planets appear to be rocky and orbit in the not-too-hot, not-too-cold habitable zones of their stars where liquid water can exist in abundance. Astronomers announced the planets along with six other newfound small, temperate worlds today at a meeting of the American Astronomical Society in Seattle. Their findings will be published in The Astrophysical Journal. The discoveries double the number of known potentially habitable exoplanets. They also push Kepler's tally of vetted, confirmed worlds to just over 1,000, marking a milestone in the mission's epochal search for alien Earths.

Both planets are many hundreds of light-years away and orbit stars smaller and dimmer than our sun. Like most of Kepler's finds, they were discovered via transits—the shadows they cast toward our solar system as they cross the blazing faces of their stars. Transits allow astronomers to measure a planet's size, orbit and exposure to starlight. Kepler 438 b is only about 12 percent larger than Earth, and basks in 40 percent more starlight; Kepler 442 b is 30 percent larger and receives about 30 percent less light. Both spheres may be somewhat warmer than Kepler's two previous premier rocky worlds, Kepler 186 f and Kepler 62 f, each of which gets significantly less starlight—similar to that received by Mars. “We can't say for sure whether these planets are truly habitable—only that they are promising candidates for habitability," says study co-author David Kipping, an astronomer at the Harvard–Smithsonian Center for Astrophysics (CfA) in Cambridge, Mass.

Christianbookworm
01-07-2015, 01:00 PM
Too bad we don't have any FTL spacecraft!

seer
01-07-2015, 01:03 PM
Newfound Exoplanets Are Most Earth-Like Yet
After five years of searching, researchers using data from NASA's exoplanet-hunting Kepler spacecraft have discovered what look to be two of the most Earth-like worlds yet. Dubbed Kepler 438 b and Kepler 442 b, both planets appear to be rocky and orbit in the not-too-hot, not-too-cold habitable zones of their stars where liquid water can exist in abundance. Astronomers announced the planets along with six other newfound small, temperate worlds today at a meeting of the American Astronomical Society in Seattle. Their findings will be published in The Astrophysical Journal. The discoveries double the number of known potentially habitable exoplanets. They also push Kepler's tally of vetted, confirmed worlds to just over 1,000, marking a milestone in the mission's epochal search for alien Earths.

Both planets are many hundreds of light-years away and orbit stars smaller and dimmer than our sun. Like most of Kepler's finds, they were discovered via transits—the shadows they cast toward our solar system as they cross the blazing faces of their stars. Transits allow astronomers to measure a planet's size, orbit and exposure to starlight. Kepler 438 b is only about 12 percent larger than Earth, and basks in 40 percent more starlight; Kepler 442 b is 30 percent larger and receives about 30 percent less light. Both spheres may be somewhat warmer than Kepler's two previous premier rocky worlds, Kepler 186 f and Kepler 62 f, each of which gets significantly less starlight—similar to that received by Mars. “We can't say for sure whether these planets are truly habitable—only that they are promising candidates for habitability," says study co-author David Kipping, an astronomer at the Harvard–Smithsonian Center for Astrophysics (CfA) in Cambridge, Mass.

Man Shuny, did you cut one!? Check your undies man!

shunyadragon
01-07-2015, 01:36 PM
Man Shuny, did you cut one!? Check your undies man!

Ignore the boar!

One Bad Pig
01-07-2015, 01:51 PM
Let me know when an article regarding the find appears in ApJ. It should prove to be interesting reading.

Christianbookworm
01-07-2015, 01:53 PM
Is there or is there not an earthlike planet that needs to be explored!

shunyadragon
01-07-2015, 01:57 PM
Story also found here http://phys.org/news/2013-04-astrophysicists-five-planet-earth-like-exoplanet.html

One Bad Pig
01-07-2015, 02:00 PM
Story also found here http://phys.org/news/2013-04-astrophysicists-five-planet-earth-like-exoplanet.html

I'm fairly certain that's a different story, from last year. The exoplanet designations are different.

37818
01-07-2015, 07:21 PM
Oh, and I found this on an old hard drive partition image:
3389

klaus54
01-07-2015, 08:11 PM
Are the stars red dwarfs? If so, they tend to be flare stars which cause problems for surface life. Still, I'd like to book a vacation on one of them exoplanets.

K54

One Bad Pig
01-07-2015, 08:20 PM
Are the stars red dwarfs? If so, they tend to be flare stars which cause problems for surface life. Still, I'd like to book a vacation on one of them exoplanets.

K54
From my reading thus far, it seems that data for Sol-sized stars is just now becoming available (so the stars are probably red dwarfs).

ETA: Here is the paper (https://www.cfa.harvard.edu/~torres/smallHZ/smallHZplanets.pdf)I've been reading.

The sun for Kepler-438b is .544 MSol; that for Kepler-442b is .609 MSol. So they're K class, one step up from red dwarfs.

klaus54
01-08-2015, 10:18 AM
Man Shuny, did you cut one!? Check your undies man!

Ah, the voice of ignorance regales us with his deep and thoughtful analysis.

klaus54
01-08-2015, 10:24 AM
Is there or is there not an earthlike planet that needs to be explored!

Not enough data to answer is/is not, and we wouldn't be able to "explore" them anyway. Perhaps you have an alternate definition of "explore".

It would take 1000s of years to reach an exoplanet, and we are far, far away from the kind of required technology.

Maybe you're just funnin' us?

K54

shunyadragon
01-08-2015, 10:29 AM
Good slide show on the recently discovery of potentially habitable planets. https://images.search.yahoo.com/images/view;_ylt=A0LEVv30yq5U0DwARDIPxQt.;_ylu=X3oDMTBsa3 ZzMnBvBHNlYwNzYwRjb2xvA2JmMQR2dGlkAw--?p=exoplanets+like+earth&back=https%3A%2F%2Fsearch.yahoo.com%2Fyhs%2Fsearch %3Fp%3Dexoplanets%2Blike%2Bearth%26type%3Die.11.w7 .dsp.04-00.us.avg._._%26param1%3DrVDLbtswEPyVXsSbBL4pHXiIb KcIEBRF6yZnPm21kcSQspL-fVdOcs-hIMEZLHdnd8cNXlfK3va4v9ntWC32-77mlPG664EJQXdUSIkPglXKI68JJ1Iy1rYdxhj5om8evqInM51 0mNAIatx6JjyVRgXFlfPGUE9Jp6ySUXQ-1iRygqnDPBpLOadSRtVGozoXTLSeWEyoY5ygBGovywWlrGNGq-YNhkM6tLvkHKbluzmFXz_u9XlZUsVMRSPc8W8JJrtzY9ZT4-YRQgnyCuDHR0mvFYtu8BXzFRWq_9T2kLivqByvZf9tSVDczAPJ MAH3BRg4CtTN106wxmLh2SJjep9ZpgwY81YBhGLCa0JqCnKCYg BmKIeHd5CxbvO-W7eVXjXAV-Dl9CZXDBjofUnAn7dZXucEY4UFbLNPw58AAOYtZ_Qz5DXku70-9rQ-fjvWj7cHrNCQNFG8IbhrSAuNWonmoh-Hyc8v5YtCVt8dkF01IQ1GLuhjvgT0u7yRfw2%26param2%3Dbr owser_search_provider%26param3%3Die.11.w7.dsp.04-00.us.avg._._%26hsimp%3Dyhs-fh_lsonsw%26hspart%3Davg%26ei%3DUTF-8&w=1920&h=1080&imgurl=www.hpcf.upr.edu%2F%257Eabel%2Fphl%2Fnew_ke pler%2FKepler62.jpg&size=233KB&name=Kepler62.jpg&rcurl=http%3A%2F%2Fphl.upr.edu%2Fpress-releases%2Fnasakeplerdiscoversnewpotentiallyhabita bleexoplanets&rurl=http%3A%2F%2Fphl.upr.edu%2Fpress-releases%2Fnasakeplerdiscoversnewpotentiallyhabita bleexoplanets&type=&no=6&tt=120&oid=3633f8f2467fee33b3e8e8f8f58cb5b5&tit=NASA+Kepler+Discovers+New+Potentially+Habitabl e+Exoplanets+-+Planetary+...&sigr=12mvogrj0&sigi=11kjnfs79&sign=10cs0jc4a&sigt=103vg5ole&sigb=1mhrlrlg4&fr=yhs-avg-fh_lsonsw&hspart=avg&hsimp=yhs-fh_lsonsw

37818
01-08-2015, 12:17 PM
Not enough data to answer is/is not, and we wouldn't be able to "explore" them anyway. Perhaps you have an alternate definition of "explore".

It would take 1000s of years to reach an exoplanet, and we are far, far away from the kind of required technology.

Maybe you're just funnin' us?

K54Even if we had the means to go near light speed. So that the explorers could travel to and from in matter of weeks, not years. It would still be 2000+ years here on earth, before anyone on earth found out anything.

Sparko
01-08-2015, 01:10 PM
What if we eventually get there and they all be like, "Yo! Why did you all cancel Seinfeld?"

Christianbookworm
01-08-2015, 01:20 PM
What if we eventually get there and they all be like, "Yo! Why did you all cancel Seinfeld?"

Wonder how they got the information FTL? How would they understand english? Or have the right equipment?

Sparko
01-08-2015, 01:23 PM
oy vey.

Christianbookworm
01-08-2015, 01:27 PM
:tongue: And if they look human, test for superpowers. That's why there aren't aliens from other planets. If there were, I'd expect some refugees. :outtie:

klaus54
01-08-2015, 01:42 PM
Wonder how they got the information FTL? How would they understand english? Or have the right equipment?

Hitchhiker's guide to the galaxy translator fish...

37818
01-11-2015, 06:17 PM
Hitchhiker's guide to the galaxy translator fish...According to the guide it is called a "Babel fish." Which by insertion into one's ear allows translation of any language you hear where the wearer can then understand another language.