The Universe Has Probably Hosted Many Alien Civilizations: Study

Message boards : SETI@home Science : The Universe Has Probably Hosted Many Alien Civilizations: Study
Message board moderation

To post messages, you must log in.

AuthorMessage
Profile LynnProject Donor
Volunteer tester
Avatar

Send message
Joined: 20 Nov 00
Posts: 11831
Credit: 31,848,742
RAC: 32,105
United States
Message 1785050 - Posted: 5 May 2016, 22:10:10 UTC
Last modified: 5 May 2016, 22:18:22 UTC

Many other planets throughout the universe probably hosted intelligent life long before Earth did, a new study suggests.

The probability of a civilization developing on a potentially habitable alien planet would have to be less than one in 10 billion trillion — or one part in 10 to the 22nd power — for humanity to be the first technologically advanced species the cosmos has ever known, according to the study.

Take the quiz,and watch the video. :)

http://www.space.com/10247-search-intelligent-life-universe.html#ooid=9ndHV4cDq_5VHoa_IWLp3XWwMCCFVLHu





http://www.space.com/32793-intelligent-alien-life-probability-high.html
ET Phone Home
ID: 1785050 · Report as offensive
Profile William Rothamel
Avatar

Send message
Joined: 25 Oct 06
Posts: 3335
Credit: 1,322,163
RAC: 0
United States
Message 1785091 - Posted: 6 May 2016, 1:33:14 UTC - in response to Message 1785050.  
Last modified: 6 May 2016, 1:48:59 UTC

That number is an estimate of all of the stars in the universe. What if only 5 planets in each Galaxy are truly earthlike, and what if each civilization lasts for only a few tens of thousands of years, and are separated by many light years in time. Most of us believe that a civilization at least comparable to our own or quite a bit more advanced has existed and maybe even is now co-temporaneous with us. The trick is to somehow find evidence over what may be unfathomable distances.
ID: 1785091 · Report as offensive
Profile Bob DeWoody
Avatar

Send message
Joined: 9 May 10
Posts: 2848
Credit: 1,215,344
RAC: 206
United States
Message 1785124 - Posted: 6 May 2016, 5:51:06 UTC

Other than the satisfaction of knowing we are not alone it is not very likely that we will ever establish contact with any ETs or derive any benefit from the knowledge. The maker of the universe, if such an entity exists, has played a cruel joke on us by imposing an unbreakable speed limit on our travels about our galaxy.
Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.
ID: 1785124 · Report as offensive
Profile Gordon Lowe
Volunteer moderator
Avatar

Send message
Joined: 5 Nov 00
Posts: 9788
Credit: 5,165,899
RAC: 2,641
United States
Message 1785223 - Posted: 6 May 2016, 15:48:51 UTC - in response to Message 1785124.  

The maker of the universe, if such an entity exists, has played a cruel joke on us by imposing an unbreakable speed limit on our travels about our galaxy.


That's tragically funny, and a good way to put it, Bob.
The mind is a weird and mysterious place
ID: 1785223 · Report as offensive
Profile tullioProject Donor
Volunteer moderator
Volunteer tester

Send message
Joined: 9 Apr 04
Posts: 6296
Credit: 1,680,467
RAC: 1,597
Italy
Message 1785238 - Posted: 6 May 2016, 16:47:05 UTC - in response to Message 1785223.  

Subtle is the Lord, but not malicious (Albert Einstein).
Tullio
ID: 1785238 · Report as offensive

Message boards : SETI@home Science : The Universe Has Probably Hosted Many Alien Civilizations: Study


 
©2017 University of California
 
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.