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Milky Way has 100 million life-giving planets


Posted on Monday, 9 June, 2014 | Comment icon 132 comments

Our galaxy could be teeming with life. Image Credit: NASA/ESA/ESO
A group of astronomers has estimated the number of habitable planets in our galaxy for the first time.
As the number of extrasolar planet discoveries increases, so too does our overall understanding of the nature and distribution of planetary bodies in our galaxy. It has long been speculated that there could be many more habitable Earth-like worlds spread out across the cosmos but determining exactly how many has remained something of a challenge.

Now a group of astronomers has come up with a new computational method through which they believe they have found the answer.

Taking in to consideration everything we know about extrasolar planets the group has calculated that there could be at least 100 million worlds within the Milky Way galaxy on which primitive life could feasibly develop.

"This study does not indicate that complex life exists on that many planets," the authors wrote. "We're saying that there are planetary conditions that could support it."

"Complex life doesn't mean intelligent life though it doesn't rule it out or even animal life but simply that organisms larger and more complex than microbes could exist in a number of different forms."

   
Source: Phys.org | Comments (132)

Tags: Extrasolar Planet, Life


 
Recent comments on this story
Comment icon #123 Posted by aquatus1 on 13 June, 2014, 21:28
We went there for the same reason people want to climb every mountain and swim every sea. Because of the competition. Once someone does it, people stop caring about it. Right now, sure. There used to be a huge difference in walking over the next mountain to discover the next valley, and building a new village there. Nowadays, not so much. Yeah, but no one cares if someone swims the English Channel anymore, just as no one cares about people making a solo flight across the Atlantic anymore. The first because it has already been done, and the second because technology has made it ... [More]
Comment icon #124 Posted by Waspie_Dwarf on 13 June, 2014, 22:04
All very interesting but a total non-argument when it comes to terraforming. Terraforming will not be done "because it is there". It is a vast engineering task NOT an act of exploration. No one ever bridged a river or tunnel through a mountain "because it was there". When people build the world's tallest structure they don't do it just because they can, sure the prestige is part of the reason, but profit is the driving force. If terraforming is done it will be done either through necessity or for profit. Terraforming may be prestigious for those that carry it ou... [More]
Comment icon #125 Posted by aquatus1 on 14 June, 2014, 10:42
"Because it's there" isn't about exploration. It's about conquest. We went to the moon "because it was there", i.e. we wanted to be the first guys there. Sure. It's like swimming the English Channel. It's cool and all, but it's been done. The only motivation left is profit. We'll just have to agree to disagree.
Comment icon #126 Posted by gatekeeper32 on 14 June, 2014, 13:46
Hopefully more intelligent then we are.
Comment icon #127 Posted by toast on 14 June, 2014, 13:56
Comment icon #128 Posted by TheGreatBeliever on 14 June, 2014, 14:14
If any it'd be extremely expensive imported here
Comment icon #129 Posted by Frank Merton on 14 June, 2014, 14:24
And would upset your stomach something fierce.
Comment icon #130 Posted by Gomar on 18 June, 2014, 1:34
"ppCool. And multiply that by number of galaxies in the Universe and you get the total number of aliens watching Football(Soccer) world series on their alien world.pYet, for some reason I havent seen any green skinned aliens walking around Times Square.
Comment icon #131 Posted by StarMountainKid on 18 June, 2014, 4:00
About terraforming Venus, how about floating cities instead. http://en.wikipedia.org/wiki/Colonization_of_Venus#Aerostat_habitats_and_floating_cities
Comment icon #132 Posted by aquatus1 on 18 June, 2014, 5:58
I would think that was an inevitable step in the process.


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