Skip to comments.
Silence in the sky—but why?
PhysOrg ^
| 8/25/13
Posted on 08/26/2013 4:29:42 PM PDT by LibWhacker
click here to read article
Navigation: use the links below to view more comments.
first previous 1-20, 21-40, 41-60, 61-80 ... 161-171 next last
To: LibWhacker
Our own civilization does not really produce detectable evidence of its existence that penetrates further than about 0.6c-yr into space. The nearest possible civilization is 7 times further than that; even in a galaxy teaming with planets, the actual nearest civilization could be hundreds of times that far away and still be quite close in interstellar terms. The Fermi paradox isn't really a paradox -- just a question -- for now. It will become a serious issue once we're able to detect signals on the order of 150 c-yr away, provided we continue to see nothing.
41
posted on
08/26/2013 5:05:36 PM PDT
by
FredZarguna
(CPVPV sounds like a very nasty STD virus. Just saying...)
To: Zeneta
The Earth and the Moon are aligned in such a way that the Sun casts a total eclipse for us to see and understand that Einstein was correct.
Interesting coincidence don'tcha think.
42
posted on
08/26/2013 5:06:31 PM PDT
by
cripplecreek
(REMEMBER THE RIVER RAISIN!)
To: MadMax, the Grinning Reaper
Since there is no breathable air on any other planet... Maybe not in this solar system, but in others they're finding, it's a distinct possibility.
There are 100 billion stars in the Milky Way galaxy alone. Scientists are discovering that nearly all of them have planetary systems of multiple worlds. That puts the possible number of planets in just this galaxy in the hundreds of billions.
The odds dictate that there will be thousands, if not hundreds of thousands of planets, that are capable of supporting earth-like lifeforms in the Milky Way alone. Now start multiplying that by the hundreds of billions of other galaxies.
It may be beyond our imagination, or our understanding of physics today, to see how mankind will ever travel to such places, but it's coming. Perhaps not in our lifetimes, but it'll happen.
43
posted on
08/26/2013 5:07:29 PM PDT
by
Windflier
(To anger a conservative, tell him a lie. To anger a liberal, tell him the truth.)
To: RandallFlagg
Yes, but we've had
this guy covering our six since 2001:
44
posted on
08/26/2013 5:09:31 PM PDT
by
FredZarguna
(CPVPV sounds like a very nasty STD virus. Just saying...)
To: jsanders2001
5) they have been here and gone many time over the past millions of years, and civilizations grow and die off faster then anyone expects (every 10,000 years or so?)
45
posted on
08/26/2013 5:10:52 PM PDT
by
Mr. K
(Lies, Damned Lies, Statistics, and then Democrat Talking Points.)
To: Vince Ferrer
my opinion has always been we are the only intelligent species out there. Start crunching the numbers of potentially habitable worlds in the known universe, and you might just rethink that.
46
posted on
08/26/2013 5:11:06 PM PDT
by
Windflier
(To anger a conservative, tell him a lie. To anger a liberal, tell him the truth.)
To: Windflier
It may be beyond our imagination, or our understanding of physics today, to see how mankind will ever travel to such places, but it's coming We are never going to travel faster than the speed of light. Our understanding of physics has nothing to do with it: it's a limitation based on the geometry of the universe.
47
posted on
08/26/2013 5:11:32 PM PDT
by
FredZarguna
(CPVPV sounds like a very nasty STD virus. Just saying...)
To: WhiskeyX
I could see something like that happening if the extinction was predictable i.e a giant meteor or something, but it could be tomorrow through a disease for all we know.
I doubt humans will ever colonize anywhere outside of our solar system. The moon and Mars perhaps in time, but that’s it. This is assuming that science fiction doesn’t become reality.
To: LibWhacker
This is simple. There is no reason for life to exist elsewhere. This may seem like a trite reason but life elsewhere would serve no purpose in the creation of likeness of God.
49
posted on
08/26/2013 5:13:58 PM PDT
by
ex-snook
(God is Love)
To: grania
I have another hypothesis to toss out there: Maybe when a species advances to a certain point, its advances lead to its destruction. I'll bet your theory is correct. Probably only one in a thousand intelligent species make it past the atomic age to advance enough to unlock the secrets to interstellar travel.
50
posted on
08/26/2013 5:14:21 PM PDT
by
Windflier
(To anger a conservative, tell him a lie. To anger a liberal, tell him the truth.)
To: MadMax, the Grinning Reaper
That’s the longest list of falsehoods and irrelevancies I’ve ever seen assembled in one place on FR.
To: DManA
At least while we are in our mortal bodies.
52
posted on
08/26/2013 5:17:18 PM PDT
by
beethovenfan
(If Islam is the solution, the "problem" must be freedom.)
To: Zeneta
“Very few microbes know this.”
Are you sure about that? Maybe there’s even smarter microbes out there.
53
posted on
08/26/2013 5:17:57 PM PDT
by
aquila48
To: LibWhacker
Out there, there be monsters. Any form of life that has gotten off it’s planet will have evolved into either a prey life form, or a predator life form. Neither can be detected.
We better shut up and hide, or shut up and kick some butt.
To: Windflier
Even if there are other planets with breathable air on them, we aren’t going to get to them unless we can create a “Jump to lightspeed” transportation system.
We can’t even get our subways to work in DC.
It’s gonna be a long time before we go out into real space and even if by some chance we reached a planet after many generations of travel, I doubt that anyone will know about it for many years.
Meanwhile back on earth, “Houston, we have problems” and they need to be solved now.
To: FredZarguna
We are never going to travel faster than the speed of light. Our understanding of physics has nothing to do with it: it's a limitation based on the geometry of the universe. The only limitation is in our ability to unlock the solutions to interstellar travel.
The Alcubierre Warp Drive
56
posted on
08/26/2013 5:21:08 PM PDT
by
Windflier
(To anger a conservative, tell him a lie. To anger a liberal, tell him the truth.)
Only six days until
September.
Please donate today.
57
posted on
08/26/2013 5:24:51 PM PDT
by
RedMDer
(http://www.dontfundobamacare.com/)
To: beethovenfan
The saddest thing about that response is you really think you made a point.
58
posted on
08/26/2013 5:25:37 PM PDT
by
DManA
To: MadMax, the Grinning Reaper
Even if there are other planets with breathable air on them, we arent going to get to them unless we can create a Jump to lightspeed transportation system. Physicists around the world are busy cracking that enigma as we speak:
The Alcubierre Warp Drive
It's only a matter of time until our species hacks the code of the physical universe and creates FTL. I fully expect that our great grandchildren will live to see that breakthrough, provided we don't destroy ourselves first.
59
posted on
08/26/2013 5:26:37 PM PDT
by
Windflier
(To anger a conservative, tell him a lie. To anger a liberal, tell him the truth.)
To: Windflier
It’s rubbish. If superluminal travel were possible, we would already have been visited by races (possibly including our own) from our own future. It isn’t. The Alcubierre “Warp Drive” isn’t physics; it’s fiction.
60
posted on
08/26/2013 5:27:59 PM PDT
by
FredZarguna
(CPVPV sounds like a very nasty STD virus. Just saying...)
Navigation: use the links below to view more comments.
first previous 1-20, 21-40, 41-60, 61-80 ... 161-171 next last
Disclaimer:
Opinions posted on Free Republic are those of the individual
posters and do not necessarily represent the opinion of Free Republic or its
management. All materials posted herein are protected by copyright law and the
exemption for fair use of copyrighted works.
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson