Newfound ’Tatooine’ Alien Planet Bodes Well for E.T. Search
2012 09 05

By Charles Q. Choi | Space.com

The discovery of the first alien planet with two suns — like the "Star Wars" world Tatooine — residing in its parent star’s habitable zone is good news for the search for life beyond Earth, scientists say.

The planet, known as Kepler-47c, is a gas giant and therefore probably not suitable for life as we know it. But its existence hints that smaller, rockier worlds may inhabit other two-star systems’ habitable zones —that just-right range of distances where liquid water can exist.

And that’s important, because there are a lot of binary systems out there, scientists say.

"Roughly half of the stars in the galaxy are in binary systems," study lead author Jerome Orosz, of San Diego State University, told SPACE.com. "I thought it would only be a matter of time before we found a system like Kepler-47 where a planet is in the habitable zone."


This illustration shows the orbits of the two alien planets circling two stars of Kepler-47, and the orbits of our own solar system planets for comparison.


The Kepler-47 system, whose discovery was announced Tuesday (Aug. 28), dwells about 5,000 light-years away, in the constellation Cygnus (The Swan). It is a close binary system, with two stars orbiting near each other at its center. Around these stars whirl two planets known as Kepler-47b and Kepler-47c.

They make Kepler-47 the first system seen with multiple worlds circling a pair of stars.

"If single stars and close binary stars can host planetary systems with an equal probability — that is not at all clear at the moment — then it would follow that life could be just as common on circumbinary planets as on planets with single stars," Orosz said.

[...]


Read the full article at: space.com








Related Articles
Billionaires should be allowed to BUY up planets and rip up an out-of-date space treaty, claims expert
Could Ancient Aliens Live on Methuselah Planets?
2 Earth-size planets spotted around distant star, boosting chances of finding life


Latest News from our Front Page

UK hospital accused of selling body parts for booze
2014 07 31
A leading cancer hospital is to be investigated following allegations that one of its staff members exchanged human body samples for whisky and cash. The calls to investigate Christies NHS foundation trust came after the accusation was made by an anonymous whistleblower, prompting British MP Rosie Cooper to contact the watchdog, the Human Tissue Authority (HTA), the Manchester Evening News reports. British ...
15 dead, over 220 injured as multiple gas explosions hit Taiwan city
2014 07 31
Several blasts have ripped through Kaohsiung, a city in south-western Taiwan, killing 15, injuring over 220 and overturning the cars in the street, the Fire Agency said. The cause is thought to be gas leaks in the sewage system. The number of those injured is expected to rise, the Fire Department said. Many were also taken to schools across the city ...
TYPOGRAPHICAL ERROR on front page of alleged U.S. criteria for terrorist list
2014 07 31
We highlighted the recent report from Glenn Greenwald’s site, The Intercept, about the United States administration’s ’Terror Watch List’, and how "a 166-page document issued last year by the National Counterterrorism Center, spells out the government’s secret rules for putting individuals on its main terrorist database". Read: BLACKLISTED: The Secret Government Rulebook For Labeling You a Terrorist A reader with a sharp ...
Why is the State so obsessed by, and careless with, deadly pathogens?
2014 07 31
Earlier this month, we ran a report on the CDC anthrax blunder. As if that weren’t bad enough, there have been additional exposures since we posted that report. This time, it involved the shipment of live, highly contagious, and deadly H5N1 avian influenza samples. As previously reported, as many as 841 scientists and staff members at a US Centers for Disease ...
‘Catastrophic’: Hedge fund billionaire Paul Singer warns of EMP
2014 07 31
Imminent: ‘Only a matter of time’ until entire electric grid destroyed by natural or man-made event… Billionaire hedge fund manager Paul Singer is warning investors – and more broadly, lawmakers and leaders – about the potential destructive power of an electromagnetic pulse, or EMP, which could be triggered by solar events or artificially, via blasts in the atmosphere. According to Singer, research ...
More News »