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NASA Discover New Earth Like Planet - Kepler-22b

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Published on Dec 5, 2011

It may have a radius about 2.4 times that of our home planet, but NASA scientists have confirmed that Kepler-22b — depicted in the artist's conception up top — is the first planet we've ever confirmed orbits within the so-called "habitable zone" of a Sun-like star, making it the most Earth-like planet we've yet discovered.

In astronomy, the habitable zone (also known as the Goldilocks zone") is the region surrounding a star in which an orbiting planet could maintain liquid water (and, by extension, life) on its surface. And as the "Goldilocks" moniker implies, whether or not a planet resides inside a habitable zone has everything to do with whether the planet is a little too cold, a little too hot, or just right, temperature-wise.

Take Kepler-21b, for example, whose discovery was announced last week by the National Optical Astronomy Observatory. Kepler-21b is even closer to the size of Earth than Kepler-22b, but it orbits far too close to its sun to sustain any form of life we're familiar with; as this conception of K-21b by artist Ron Miller clearly illustrates, surface temperatures on the planet are estimated to reach as much as 3000-degrees Fahrenheit — that's hot enough to melt iron, not to mention any hope of us ever calling K-21b "Earth 2.0."


But Kepler-22b is a different story. Sure, the planet orbits about 15% closer to its star than Earth does to the Sun, but its star is also significantly cooler, dimmer, and smaller than ours. And while scientists have yet to determine K-22b's composition — be it rocky, gaseous or liquid — they estimate that surface temperatures on K-22b average a very Earth-like 72-degrees Fahrenheit.

"This is a major milestone on the road to finding Earth's twin," said Douglas Hudgins, Kepler program scientist at NASA Headquarters in Washington. "Kepler's results continue to demonstrate the importance of NASA's science missions, which aim to answer some of the biggest questions about our place in the universe."

Comments • 411

N8iV MahpiyaZi
Its planet namek and I wonder how the grand elder is doing 
halo guy
N8iV MahpiyaZi pikkoyo 😂 i just love baby pan
Tionn Dailey
I knew planet namek was real
Pharial Bryant
And god created a new earth
League Bat
xD
Hiphophead1
+Pharial Bryant no i did
John Palacio
I wonder if building a house there is cheaper than here in Vancouver
PJ KING BEATS
+John Palacio LMFAO no kidding hey vancouver is so expensive 2,000 for a place to live and cool i live in van city too :P
RACKCITYKINGS
All they gotta do is find a worm hole and they can warp there in 1 day or time travel from da Bermuda triangle I bet u that's where all the missing boats ships and aircrafts at they on the new planet earth chilling tryn to build some shit where they can communicate wit us they didnt make the planet of the ape movie for nothin y'all better wake up to reality!!!
Daniel Roik
It sound's cool.
НЭДVЭЙ:011
oooooooo. . nasa. . !!! Super reliable source.!! . . . . . . . . . . . . . . .hmmm
Michael Monterey
Hey! Anyone seen the brilliant presentation by W Thornhill on stable inhabitable/inhabited planets orbiting inside the outer atmosphere of Red Giant & Red Dwarf suns AND Saturn being a "cool" turned off ex-Red Dwarf (given at the EU Convention)? Very interesting possibilities.
View all 3 replies
Michael Monterey
Nati - Traveling @ 1000 times slow light speed is much quicker. It's the alien proteins, virus strains and bacteria that might kill 90% of the colonists.
Nati Mike
+Art Johnson and that is a long time u will die
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Michael Monterey
Syndacaterz says we stay stuck to Earth cawz it spins like the space station. I've never seen anything on that. Has anybody else? Now, Syndacaterz, I can See that spin affects gravity, because gravity is a side-effect of interacting MDE field flows & Earth has several internal dynamos - also interacting with the sun's field & galactic flows (plasma, etc.). Yet, since "mass" is a property of energetic phenomena - "stuff" that vibrates, spins, flows and moves any other way - the mass quotient & types of conductive magnetc & paramagnetic elements of a planet's crust, mantle, cores, and any super-large subcrustal aquifers are all contributing factors co-creating the G effect of a planet. As far as I know, the only thing I said above that isn't recognized by planetologists & Old School SM physicists is about the gravitational effect being somewhat like a colossal version of the force-free drift caused by the Quantum Hall effect and the Lorentz Force effect. Syndacaterz, if any of all that is incorrect, please give us the facts, evidence, proofs backing your theory. BTW, that will seem way more convincing than troll farts & insults.
A7 Riku 28
They found another one Kepler-186f 
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