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Planet similar to our own in our 'backyard'


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Author Topic: Planet similar to our own in our 'backyard'  (Read 43 times)
Steve Hydonus
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« on: Aug 25, 2016 12:30 am »

https://www.yahoo.com/news/habitable-planet-found-solar-system-next-door-171818166.html

Will we be identified as serpent people and disappear into the nite somewhat like our robotic large eyed robot friends here?
« Last Edit: Aug 25, 2016 01:51 am by Steve Hydonus » Report Spam   Logged

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« Reply #1 on: Aug 25, 2016 03:30 am »

My suitcase is packed...
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mccoy
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« Reply #2 on: Sep 14, 2016 01:58 pm »

I finished a while ago to read Stephen Baxter's SF book: Proxima

It really speaks about Proxima B and everything he describes is according to scientific observations: that it's tidally locked, it's close to a red dwarf with very irregular emissions and radiation storms and so many other details. A colony was sent out there and many surprises occurredt. A good SF book which as it turns out has a solid scientific basis.
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Steve Hydonus
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« Reply #3 on: Sep 15, 2016 06:09 am »

Mccoy you have me goin on this one. It kinda looks like this may be our first way out of our solar system...Proxima b
Altough we get to imagine it we may have our following generation or two actually sending probes there with results.

https://www.yahoo.com/news/habitable-planet-found-solar-system-next-door-171818166.html


YahooNEWS   Share
Habitable planet found in solar system next door

Marlowe Hood•August 24, 2016

Have astronomers found Earth 2.0?
Astronomers believe that they've discovered a rocky, Earth-like planet that could potentially sustain life. Dr. Michio Kaku, CBS News contributor and theoretical physicist, joins CBSN with more details.
Paris (AFP) - Scientists Wednesday announced the discovery of an Earth-sized planet orbiting the star nearest our Sun, opening up the glittering prospect of a habitable world that may one day be explored by robots.
Named Proxima b, the planet is in a "temperate" zone compatible with the presence of liquid water -- a key ingredient for life.

The findings, based on data collected over 16 years, were reported in the peer-reviewed journal Nature.
"We have finally succeeded in showing that a small-mass planet, most likely rocky, is orbiting the star closest to our solar system," said co-author Julien Morin, an astrophysicist at the University of Montpellier in southern France.
"Proxima b would probably be the first exoplanet visited by a probe made by humans," he told AFP.
An exoplanet is any planet outside our Solar System.
Lead author Guillem Anglada-Escude, an astronomer at Queen Mary University London, described the find as the "experience of a lifetime".
Working with European Southern Observatory telescopes in the north Chilean desert, his team used the so-called Doppler method to detect Proxima b and describe its properties.
The professional star-gazers spent 60 consecutive days earlier this year looking for signs of gravitational pull on its host star, Proxima Centauri.
Regular shifts in the star's light spectrum -- repeating every 11.2 days -- gave a tantalising clue.
They revealed that the star alternately moved towards and away from our Solar System at the pace of a leisurely stroll, about five kilometres (three miles) per hour.
- Goldilocks zone -
After cross-checking an inconclusive 2000-2014 dataset and eliminating other possible causes, the researchers determined that the tug of an orbiting planet was responsible for this tiny to-and-fro.
"Statistically, there is no doubt," Anglada-Escude told journalists in a briefing.
"We have found a planet around Proxima Centauri."
Proxima b is a mere four light years from the Solar System, meaning that it is essentially in our back yard on the scale of our galaxy, the Milky Way.
It has a mass around 1.3 times that of Earth, and orbits about seven million kilometres (4.35 million miles) from its star.
A planet so near to our Sun -- 21 times closer than Earth -- would be an unlivable white-hot ball of fire.
But Proxima Centauri is a so-called red dwarf, meaning a star that burns at a lower temperature.
As a result, the newly discovered planet is in a "Goldilocks" sweet spot: neither so hot that water evaporates, nor so cold that it freezes solid.
But liquid water is not the only essential ingredient for the emergence of life.
An atmosphere is also required, and on that score the researchers are still in the dark.
It all depends, they say, on how Proxima b evolved as a planet.
"You can come up with formation scenarios that end up with and Earth-like atmosphere, a Venus-like atmosphere" -- 96 percent carbon dioxide -- "or no atmosphere at all," said co-author Ansgar Reiners, an expert on "cold" stars at the University of Goettingen's Institute of Astrophysics in Germany.
Computer models suggest the planet's temperature, with an atmosphere, could be "in the range of minus 30 Celsius (-22 Fahrenheit) on the dark side, and 30C (80F) on the light side," Reiners told journalists.
Like the Moon in relation to Earth, Proxima b is "tidally locked," with one face always exposed to its star and the other perpetually in shadow.
Emerging life forms would also have to cope with ultraviolet and X-rays bombarding Proxima b 100 times more intensely than on Earth.
- Search for life -
An atmosphere would help deflect these rays, as would a strong magnetic field.
But even high doses of radiation do not preclude life, especially if we think outside the box, scientists say.
"We have to be very open-minded as to what we call 'life'," Jean Schneider, an expert on exoplanets at the Observatoire de Paris, told AFP.
Some 3,500 exoplanets have been discovered since the first confirmed sighting in 1995.
Most of these distant worlds -- like our own Jupiter and Neptune -- are composed of gas, an inhospitable environment for life.
Even the 10 percent that do have rocky surfaces are mostly too cold or too hot to host water in liquid form.
And -- until today -- the handful that are in a temperate zone are effectively beyond reach.
Last year, for example, NASA unveiled Kepler 452b, a planet about 60 percent larger than Earth that could have active volcanoes, oceans, sunshine like ours, and a year lasting 385 days.
But at a distance of 1,400 light-years, humankind would have little hope of reaching this Earth-twin any time soon.
By comparison, Proxima b is a stone's throw away, though still too far away for humans to visit with present-generation chemical rockets.
"This is a dream for astronomers if we think about follow up observations," said Reiners.
« Last Edit: Sep 15, 2016 02:18 pm by Steve Hydonus » Report Spam   Logged

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« Reply #4 on: Sep 15, 2016 02:19 pm »



This is another short video on earth 2... Proxima b.
« Last Edit: Sep 15, 2016 02:25 pm by Steve Hydonus » Report Spam   Logged

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« Reply #5 on: Sep 15, 2016 04:40 pm »

My suitcase is packed...

Brock; can u believe this one? They (NASA) want to send a spacecraft the size of a coin and propel it by lazer technology to Proxima b at 20% the speed of light.
« Last Edit: Sep 15, 2016 07:09 pm by Steve Hydonus » Report Spam   Logged

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« Reply #6 on: Sep 16, 2016 01:57 am »

It really is mind boggling.
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« Reply #7 on: Sep 19, 2016 11:38 am »

Quote
Computer models suggest the planet's temperature, with an atmosphere, could be "in the range of minus 30 Celsius (-22 Fahrenheit) on the dark side, and 30C (80F) on the light side," Reiners told journalists.
Like the Moon in relation to Earth, Proxima b is "tidally locked," with one face always exposed to its star and the other perpetually in shadow.
Emerging life forms would also have to cope with ultraviolet and X-rays bombarding Proxima b 100 times more intensely than on Earth.

Providing there is an atmoshpere, that wouldn't be too much of a great drawback. The dark side would be free from radiations and the temperature there is not extremely low. But it is a the terminator, the bordering area between the dark side and the bright side where the radiations would probably be tolerable with more ideal temperature conditions.
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« Reply #8 on: Sep 25, 2016 06:43 am »

Too bad we can't even take care of the planet we have...
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« Reply #9 on: Sep 27, 2016 10:14 pm »

Too bad we can't even take care of the planet we have...

Human beings just need another clean planet to make it dirty, I reckon.
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« Reply #10 on: Sep 28, 2016 05:12 am »

This is not a new world - it is simply an extension of what began in the old one. It will pattern itself after every dictator who has ever planted the ripping imprint of a boot on the pages of history since the beginning of time. It has refinements...technological advances...and a more sophisticated approach to the destruction of human freedom. But like everyone of the super-states that preceded it - it has one iron rule: logic is an enemy and truth is a menace.
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