Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

People say we're running out of energy. That's only true if we stick with these old 19th century technologies. We are awash in energy from sunlight.

 

Ray Kurzweil

 

'Alien Earth' is among eight new far-off planets

RATE THIS! +37
Posted in Science on 7th Jan, 2015 11:54 PM by AlexMuller

One of eight new planets spied in distant solar systems has usurped the title of "most Earth-like alien world". All eight were picked out by Nasa's Kepler space telescope, taking its tally of such "exoplanets" past 1,000. Only three sit safely within the habitable zone of their star, and one in particular is rocky, like Earth, as well as only slightly warmer.

 
The find was revealed at a meeting of the American Astronomical Society. The three potentially habitable planets join Kepler's "hall of fame", which now boasts eight fascinating planetary prospects.
 
And researchers say the most Earth-like of the new arrivals, known as Kepler 438b, is probably even more similar to our home than Kepler 186f - which previously looked to be our most likely twin.
 
At 12% larger than Earth, the new claimant is bigger than 186f but it is closer to our temperature, probably receiving just 40% more heat from its sun than we do from ours. So if we could stand on the surface of 438b it may well be warmer than here, according to Dr Doug Caldwell from the Seti (Search for Extra-Terrestrial Intelligence) Institute in California.
 
An artist's view of Kepler 186f, which experts say has now been pipped as "most Earth-like" known exoplanet
 
"And it's around a cooler [red dwarf] star... so your sky would look redder than ours does to us," Dr Caldwell said.
 
'Star Trek' scenario
 
Even once scientists have anointed a candidate as a confirmed exoplanet, the question of whether or not it is "Earth-like" is a fraught one, with fuzzy boundaries. The size of the habitable, or "Goldilocks" zone, where a planet is far enough from its sun to hold water but not so distant that it freezes, depends on how confident scientists want to be with their guess-work.
 
According to Dr Cardwell, just three of the eight new exoplanets can be confidently placed in that zone, and only two of those are probably rocky like the Earth.

Tags: planetexoplanetspaceastronomyEarthstar

Read original article » Back to category

Comments

Author: Guest
Posted: 2015-01-08
+0

Much more has to found out before we know whether this planet just resembles the earth in some ways or has all the vital ingredients to support life - keep looking Reply


 

Recent headlines

  • Posted in Science on 2017-09-23 08:31:24
    Fly me to the Moon: For some, lunar village takes shape..read more
    Posted in Software on 2017-09-23 08:22:48
    One year later, Microsoft AI and Research grows to 8k.....read more
    Posted in Science on 2017-09-23 08:14:46
    Big Antarctic iceberg edges out to sea..read more
    Posted in Business on 2017-09-22 18:42:50
    To Achieve 100% Renewable Energy, We Need Way Better.....read more
    Posted in Medicine on 2017-09-22 18:31:20
    How the poliovirus can be used to battle lethal cancers..read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    Scientists probe Neptune's depths to reveal secrets of icy.....read more
    Posted by AlexMuller
    New terahertz imaging approach could speed up skin cancer.....read more
    Posted by AlexMuller
    Rebutting the claim that antidepressants do not work..read more
    Posted by AlexMuller
    Artificial neural networks decode brain activity during.....read more
    Posted by AlexMuller
    Four Earth-sized planets detected orbiting the nearest.....read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me