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First Habitable Planet Discovered!  
User currently offlineRootsAir From Costa Rica, joined Feb 2005, 4186 posts, RR: 40
Posted (7 years 5 months 1 week 2 days 19 hours ago) and read 2184 times:

A North American and European team lead by a Swiss group of astronomers from Geneva have discovered an exo planet, 20,5 light years away that could be habitable as traces of water have been found! It is around 5 times bigger than Earth .
This is a major discovery and these next years the planet should be studies in more depth.

More info on this link ...

http://www.canada.com/nationalpost/n...e0d-41fc-abac-962d28c418ea&k=26343

Cheers

BM

[Edited 2007-04-25 12:58:06]


A man without the knowledge of his past history,culture and origins is like a tree without roots
55 replies: All unread, showing first 25:
 
User currently offlineKlaus From Germany, joined Jul 2001, 21478 posts, RR: 54
Reply 1, posted (7 years 5 months 1 week 2 days 19 hours ago) and read 2164 times:

First evidence of a potentially habitable planet discovered... just to keep the qualifications straight...!

User currently offlineBeaucaire From Syria, joined Sep 2003, 5252 posts, RR: 25
Reply 2, posted (7 years 5 months 1 week 2 days 19 hours ago) and read 2163 times:

..there are potentially millions of planets comparable to planet earth in the universe,considering the billions of galaxies ...
I don't understand the frenzy to get all exited about this discovery - what use will it be for humankind to explore this planet ??
What use is it to send people on mars ? Just because it's there ?
The billions invested on a Mars-trip are better spend on research on alternative aircraft-propulsion systems .
Thers is water and comparable temperatures than to our climate - will that be enough reasons to invest billions of $ to explore this further ?? I am convinced we are not the only breed in universe - it's just to remote to consider that among the trillions of stars we would be unique...



Please respect animals - don't eat them...
User currently offlineRammstein From , joined Dec 1969, posts, RR:
Reply 3, posted (7 years 5 months 1 week 2 days 19 hours ago) and read 2160 times:

Quoting RootsAir (Thread starter):
20,5 light years

This detail makes some interesting news totally useless news.

[Edited 2007-04-25 13:26:28]

User currently offlineBanco From United Kingdom, joined Oct 2001, 14752 posts, RR: 53
Reply 4, posted (7 years 5 months 1 week 2 days 19 hours ago) and read 2143 times:

Quoting Beaucaire (Reply 2):
I don't understand the frenzy to get all exited about this discovery - what use will it be for humankind to explore this planet ??
What use is it to send people on mars ? Just because it's there ?

Firstly, because it's more evidence that earth might not be unique in having life (lots of "mights" there) and as for what use is it to do things, you might as well ask why bother to climb Everest. It's part of the human condition to see what's there.



She's as nervous as a very small nun at a penguin shoot.
User currently offlineAndz From South Africa, joined Feb 2004, 8455 posts, RR: 10
Reply 5, posted (7 years 5 months 1 week 2 days 19 hours ago) and read 2129 times:
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Quoting Klaus (Reply 1):
First evidence of a potentially habitable planet discovered... just to keep the qualifications straight...!

So what do we live on then? If we are going to be totally pedantic....



After Monday and Tuesday even the calendar says WTF...
User currently offlineFlyingbabydoc From , joined Dec 1969, posts, RR:
Reply 6, posted (7 years 5 months 1 week 2 days 19 hours ago) and read 2116 times:

With all that is going on in terms of pollution, over-population, deforestation and so on, it is really difficult to believe that there is still life on THIS planet...  Sad

Alex


User currently offlineRootsAir From Costa Rica, joined Feb 2005, 4186 posts, RR: 40
Reply 7, posted (7 years 5 months 1 week 2 days 19 hours ago) and read 2109 times:

Quoting Flyingbabydoc (Reply 6):
With all that is going on in terms of pollution, over-population, deforestation and so on, it is really difficult to believe that there is still life on THIS planet... Sad

Well you and I posting in this forum seems to be a good evidence no ? Big grin



A man without the knowledge of his past history,culture and origins is like a tree without roots
User currently offlineBanco From United Kingdom, joined Oct 2001, 14752 posts, RR: 53
Reply 8, posted (7 years 5 months 1 week 2 days 19 hours ago) and read 2105 times:

Quoting Flyingbabydoc (Reply 6):
it is really difficult to believe that there is still life on THIS planet.

It's impossible for us to eliminate life on this planet. Only human conceit could think for a moment we could. We could eliminate ourselves but not life.



She's as nervous as a very small nun at a penguin shoot.
User currently offlineSlz396 From , joined Dec 1969, posts, RR:
Reply 9, posted (7 years 5 months 1 week 2 days 19 hours ago) and read 2099 times:

What do you mean with 'first habitable planet discovered'?

I have a piece of a habitable planet in my back yard for years! Big grin


User currently offlineTRVYYZ From Canada, joined Oct 2004, 1371 posts, RR: 10
Reply 10, posted (7 years 5 months 1 week 2 days 18 hours ago) and read 2095 times:

Quoting Rammstein (Reply 3):
Quoting RootsAir (Thread starter):
20,5 light years

This detail makes some interesting news totally useless news.

 checkmark 

Exactly, whats the use when nobody can reach there.


User currently offlineFlyingbabydoc From , joined Dec 1969, posts, RR:
Reply 11, posted (7 years 5 months 1 week 2 days 18 hours ago) and read 2087 times:

Quoting Banco (Reply 8):
It's impossible for us to eliminate life on this planet

I would not be so sure. Eliminate completely the protection against UV rays and no DNA replication would be successful without severe mutations, on none at all. Since DNA methylation is so highly susceptible to UV light, it is feasible to assume that not even the toughest bacteria or virus would survive in an unprotected environment.

Alex


User currently offlineKlaus From Germany, joined Jul 2001, 21478 posts, RR: 54
Reply 12, posted (7 years 5 months 1 week 2 days 18 hours ago) and read 2082 times:

Quoting Flyingbabydoc (Reply 11):
I would not be so sure. Eliminate completely the protection against UV rays and no DNA replication would be successful without severe mutations, on none at all. Since DNA methylation is so highly susceptible to UV light, it is feasible to assume that not even the toughest bacteria or virus would survive in an unprotected environment.

The oceans just below a depth of a few meters and many caves would still qualify as "protected environments". Life on dry land is the oddity, not the one in the seas.


User currently offlineTedTAce From , joined Dec 1969, posts, RR:
Reply 13, posted (7 years 5 months 1 week 2 days 18 hours ago) and read 2071 times:

Quoting Banco (Reply 8):
It's impossible for us to eliminate life on this planet.

I guess that when our sun expands in a few billion years and the temperaure reaches a tepid 500 degrees (c), you'll just put on some extra sun screeen.  Yeah sure

(Yes I'm pulling #'s out of my a$$ in the following, but I'm sure I'm in the ballpark or conservative.)

I think it's kind of funny that we are getting excited about a planet that MIGHT support us being over 20 light years away. 5X bigger seems to tell me that it's going to have a lot more gravity then we can deal with (especially after 20 years in space). The next problem is that 6 months in space is a lot for humans FORGET about 20+ years. Oh and by the way, last time I checked, the fastest object we have is moving @ 1/10th of 1% of the speed of light, given Moore's law it will be about 200 years before we are even close to light speed. So at best I think we are stuck here for another 500 years. I'm not saying we shouldn't try, but good luck.


Oh and even if we MYSTICALLY came up with something (tomorrow) that could propel us at the speed of light (or better) and we 'moved' to that planet (presuming the planet could support us) What would make us different from these guys?



User currently offlineFlyingbabydoc From , joined Dec 1969, posts, RR:
Reply 14, posted (7 years 5 months 1 week 2 days 18 hours ago) and read 2069 times:

Quoting Klaus (Reply 12):
The oceans just below a depth of a few meters and many caves would still qualify as "protected environments". Life on dry land is the oddity, not the one in the seas.

Indeed, yet the food chain would have to be completely changed - even deep sea creatures are somehow dependent down the line on plancton which thrives on a "mild" sun.

Alex


User currently offlineJonathan-l From France, joined Mar 2002, 504 posts, RR: 0
Reply 15, posted (7 years 5 months 1 week 2 days 18 hours ago) and read 2061 times:

Quoting TRVYYZ (Reply 10):
Exactly, whats the use when nobody can reach there.

We spend billions on space probes and such for a whole lot of things we will never visit.


User currently offlineBanco From United Kingdom, joined Oct 2001, 14752 posts, RR: 53
Reply 16, posted (7 years 5 months 1 week 2 days 18 hours ago) and read 2056 times:

Quoting TedTAce (Reply 13):
I guess that when our sun expands in a few billion years and the temperaure reaches a tepid 500 degrees (c), you'll just put on some extra sun screeen.

And what part of that is down to"us"?


I said it was impossible for humans to eliminate life on this planet, so no need to roll your eyes. Nature will certainly do it, because the earth has a finite life.

Quoting Flyingbabydoc (Reply 14):
even deep sea creatures are somehow dependent down the line on plancton which thrives on a "mild" sun.

Not so. This was thought to be the case until scientists discovered creatures that took their nutrients directly from volcanic fissures deep beneath the sea, not relying on the sun at all.

Quoting Flyingbabydoc (Reply 11):
I would not be so sure. Eliminate completely the protection against UV rays and no DNA replication would be successful without severe mutations, on none at all. Since DNA methylation is so highly susceptible to UV light, it is feasible to assume that not even the toughest bacteria or virus would survive in an unprotected environment.

As above.



She's as nervous as a very small nun at a penguin shoot.
User currently offlineKROC From , joined Dec 1969, posts, RR:
Reply 17, posted (7 years 5 months 1 week 2 days 18 hours ago) and read 2042 times:

Quoting TedTAce (Reply 13):
Oh and even if we MYSTICALLY came up with something (tomorrow) that could propel us at the speed of light (or better) and we 'moved' to that planet (presuming the planet could support us) What would make us different from these guys?

We won't have really long dreadlock looking things danggling off of us?  confused 


User currently offlineTurkishWings From United States of America, joined May 2006, 1441 posts, RR: 8
Reply 18, posted (7 years 5 months 1 week 2 days 18 hours ago) and read 2038 times:

Quoting RootsAir (Thread starter):
an exo planet, 20,5 light years away

How long would it take to get there on a 777 ?  Wink

Honestly, how far is 20,5 light years ? How far is the sun in light years?



Coffee - Tea or Me?
User currently offlineJonathan-l From France, joined Mar 2002, 504 posts, RR: 0
Reply 19, posted (7 years 5 months 1 week 2 days 18 hours ago) and read 2034 times:

Quoting TurkishWings (Reply 18):
How far is the sun in light years?

8 minutes


User currently offlineRammstein From , joined Dec 1969, posts, RR:
Reply 20, posted (7 years 5 months 1 week 2 days 17 hours ago) and read 2024 times:

If I did my calculations correctly...

Quoting TurkishWings (Reply 18):
How far is the sun in light years

Speed of light = 299 792 458 m/s = 1 079 252 849 km/h

Edit: oops forgot to add the answer: The sun is 8 minutes light far.

Quoting TurkishWings (Reply 18):
how far is 20,5 light years

20,5 * 1 079 252 849 * 24 * 365 = 1.938122266*10^14 = 193 812 226 600 000 km

Quoting TurkishWings (Reply 18):
How long would it take to get there on a 777

Let's suppose 777 speed = 885 km/h, we have

1.938122266*10^14 / 885 = 2.189968662*10^11 hours = about 24 999 642 years

[Edited 2007-04-25 15:03:11]

User currently offlineHomer71 From United States of America, joined Jul 2001, 2245 posts, RR: 14
Reply 21, posted (7 years 5 months 1 week 2 days 17 hours ago) and read 2025 times:

Quoting TurkishWings (Reply 18):
Honestly, how far is 20,5 light years ?

20.5 light years = 120 trillion miles

Can anyone confirm?



"On spaceship earth there are no passengers...only crew."
User currently offlineArniePie From Belgium, joined Aug 2005, 1265 posts, RR: 1
Reply 22, posted (7 years 5 months 1 week 2 days 17 hours ago) and read 2015 times:

Quoting Rammstein (Reply 20):
Let's suppose 777 speed = 885 km/h, we have

1.938122266*10^14 / 885 = 2.189968662*10^11 hours = about 24 999 642 years

We might be lucky and have a good tailwind.



[edit post]
User currently offlineBanco From United Kingdom, joined Oct 2001, 14752 posts, RR: 53
Reply 23, posted (7 years 5 months 1 week 2 days 17 hours ago) and read 2010 times:

Quoting Rammstein (Reply 20):
Let's suppose 777 speed = 885 km/h, we have

1.938122266*10^14 / 885 = 2.189968662*10^11 hours = about 24 999 642 years

Ryanair are already calling it Saturn West...  Wink



She's as nervous as a very small nun at a penguin shoot.
User currently offlineN231YE From , joined Dec 1969, posts, RR:
Reply 24, posted (7 years 5 months 1 week 2 days 17 hours ago) and read 1997 times:

Quoting ArniePie (Reply 22):
We might be lucky and have a good tailwind.

A good tailwind provided by solar wind


25 Beaucaire : This discovery shows the dilemma of astrophysics- they make great discoveries but completely useless for us "earthlings"... In all honesty - I couldn'
26 Post contains images Scbriml : Ted and Ryanair pwn3d in two posts! Priceless.
27 Post contains images YooYoo : Better take the LR model. Why? I don't see much out of the box thinking here. One needs to have a "vision" Hell, with that attitude 120 years ago, ou
28 Jaysit : Isn't that the planet Tom Cruise, John Travolta and Kirstie Alley are from?
29 DesertJets : By that same argument we could ask why our ancient fore fathers decided to start wandering about the place and get in boats to see what was over the
30 ArniePie : 20.5 lightyears away, this means they have The A-team and Knightrider on the tele by now, poor bastards no wonder they are going to have a hostile att
31 Beaucaire : I said that I am a supporter and interested in science - with my engineering background I had some exposure to research. But I would consider for ins
32 AirTranTUS : Calm down guys. That planet was probably destroyed 10 years ago in a black hole, but we haven't seen it, cause it will be another 10.5 years till we c
33 GDB : 20 Light years is very close indeed. Maybe, future better telescopes, for specific planet hunting, might provide better info on this world, chemicals
34 Yellowstone : It gave us the hand vacuum, aka Dustbuster, for one.
35 Post contains images JGPH1A : If it's a DL flight, you can bet they still won't play the 2nd IFE program ...and will provide a bus shuttle service to Saturn for only GBP29,675,321
36 777236ER : And in a A380, cruise speed of 912 km/h we have 1.938122266*10^14 / 912 = 2.12513406 *(10^11) hours = about 24 243 434 years. So an A380 will save yo
37 Post contains images CastleIsland : Good luck with the ETOPS certification.
38 Post contains images AsstChiefMark : That's only a four day trip at warp 9.65. Ensign... Set a course... Engage!
39 DesertJets : They'll first need to develop a spaceport at 40 Eridani to handle any emergency diversions.
40 DeltaDC9 : The only way the Human race can maintain its existence indefinitely is to leave Earth eventually. Not to our children's children. The Earth has seen
41 TRVYYZ : A light-year is a unit of distance. It is the distance that light can travel in one year. Light moves at a velocity of about 300,000 kilometers (km)
42 DeltaDC9 : We already have theoretical designs that may attain up to 1/10th light speed, and NASA has been working on alternative propulsion for a long time. Gi
43 CastleIsland : I hope you're not a scientist or an engineer. If they all thought things were impossible, we'd be living in the stone age. Sure it's unlikely, but an
44 MDorBust : And how long for a DC-8 full of souls?
45 Post contains images N1120A : But the cockroaches will. Actually, I heard it was going to replace HHN as their gateway to Frankfurt, Koeln and Luxembourg.
46 TRVYYZ : How many scientists or engineers really think it is possible?
47 Yellowstone : NASA used to have a team, IIRC, that was dedicated to theorizing about possible future propulsion technologies. Most of them involved tech that we do
48 Post contains images FlyDeltaJets87 : Hmmm....but what is it at Ludicrous Speed?
49 Post contains images NorthStarDC4M : *spaceballs* Then Sir! When! Then! When will then be now? We just missed it sir! When!? Just then sir! ...STOP! But sir... i really.. JUST STOP! ...
50 Post contains images Boeing4ever : Manifest Destiny? Seriously, how much oil and when can we invade? B4e-Forever New Frontiers
51 Post contains images TedTAce : That'a about it for now, but even then we might have to grow those things for one reason or another. I misread what you stated, sorry. Now that I kno
52 DeltaDC9 : A lot can happen in 500 years. BTW, I clearly remember the doubt all the way up to Apollo 11, and the conspiracy theories that cropped up tyring to p
53 Banco : No probs. It'd kill a lot of life, but it certainly wouldn't kill anything like all of it. Some creatures would even thrive on it. No, humans couldn'
54 Post contains images TSS : As Larry Niven once said: "The reason the dinosaurs are extinct is they didn't have a space program".
55 Post contains images TedTAce : 500, MAYBE, presuming something else doesn't happen in the mean time. That's simple math that anyone who has seen an F-1 (much less a cluster of 5) c
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