Kepler-452b

Message boards : SETI@home Science : Kepler-452b
Message board moderation

To post messages, you must log in.

1 · 2 · Next

AuthorMessage
Profile Keith T.
Volunteer tester
Avatar

Send message
Joined: 23 Aug 99
Posts: 752
Credit: 403,736
RAC: 408
United Kingdom
Message 1704321 - Posted: 23 Jul 2015, 17:06:28 UTC - in response to Message 1704316.  

1400 light years, we would need some kind of StarGate to get there in a hurry !
ID: 1704321 · Report as offensive
Profile Chris S Crowdfunding Project Donor*Special Project $75 donor
Volunteer tester
Avatar

Send message
Joined: 19 Nov 00
Posts: 40887
Credit: 41,444,537
RAC: 747
United Kingdom
Message 1704546 - Posted: 24 Jul 2015, 7:16:08 UTC

This is also being discussed over in the other science thread.
ID: 1704546 · Report as offensive
Profile William Rothamel
Avatar

Send message
Joined: 25 Oct 06
Posts: 3463
Credit: 1,468,209
RAC: 10
United States
Message 1704607 - Posted: 24 Jul 2015, 13:18:29 UTC - in response to Message 1704546.  

Lets focus on this putative planet and see if they sent us any kind of message 1400 years ago.
ID: 1704607 · Report as offensive
Profile Chris S Crowdfunding Project Donor*Special Project $75 donor
Volunteer tester
Avatar

Send message
Joined: 19 Nov 00
Posts: 40887
Credit: 41,444,537
RAC: 747
United Kingdom
Message 1704644 - Posted: 24 Jul 2015, 15:04:19 UTC

But that assumes William that they sent it at light speed does it not?
ID: 1704644 · Report as offensive
Profile Chris S Crowdfunding Project Donor*Special Project $75 donor
Volunteer tester
Avatar

Send message
Joined: 19 Nov 00
Posts: 40887
Credit: 41,444,537
RAC: 747
United Kingdom
Message 1704653 - Posted: 24 Jul 2015, 15:25:24 UTC

Radio waves are a type of electromagnetic radiation, and like all other electromagnetic waves, they travel at the speed of light. But it also depends upon frequencies and wavelengths. It is much more likely that laser signals would be used. See this link.

Opals
ID: 1704653 · Report as offensive
Profile William Rothamel
Avatar

Send message
Joined: 25 Oct 06
Posts: 3463
Credit: 1,468,209
RAC: 10
United States
Message 1704660 - Posted: 24 Jul 2015, 15:47:44 UTC - in response to Message 1704644.  
Last modified: 24 Jul 2015, 15:48:23 UTC

That's an interesting concept. How could they not send it at light speed. So far as we know information cannot travel at faster than light speed. Even if they used semaphore flags if we were to spy them from Earth it would have been a message crafted 1400 years ago.

As I said; a good question. How do you send a message from this distant planet at speeds slower than the speed of light ?

The computer composing and posting the message may operate at other than what you would consider the speed of light. But once it was broadcast or written on a billboard it would travel to eyes, ears and receivers on Earth at the speed of light.
ID: 1704660 · Report as offensive
Profile Keith T.
Volunteer tester
Avatar

Send message
Joined: 23 Aug 99
Posts: 752
Credit: 403,736
RAC: 408
United Kingdom
Message 1704950 - Posted: 25 Jul 2015, 16:02:15 UTC - in response to Message 1704329.  
Last modified: 25 Jul 2015, 16:02:39 UTC

1400 light years, we would need some kind of StarGate to get there in a hurry !

Very true. Just if you happen to get even any hint of such a thing available, please notify me, too. ;-)


There is an image of one in my Avatar, courtesy of Arthur C Clarke and Stanley Kubrick :-)
ID: 1704950 · Report as offensive
Profile Chris S Crowdfunding Project Donor*Special Project $75 donor
Volunteer tester
Avatar

Send message
Joined: 19 Nov 00
Posts: 40887
Credit: 41,444,537
RAC: 747
United Kingdom
Message 1705170 - Posted: 26 Jul 2015, 8:10:59 UTC

And this makes one wonder, why nobody has checked the Tycho crater on the Moon.

Why should they?
ID: 1705170 · Report as offensive
Profile Chris S Crowdfunding Project Donor*Special Project $75 donor
Volunteer tester
Avatar

Send message
Joined: 19 Nov 00
Posts: 40887
Credit: 41,444,537
RAC: 747
United Kingdom
Message 1705282 - Posted: 26 Jul 2015, 16:01:13 UTC - in response to Message 1705266.  

"2001 A Space Odyssey" was simply an entertaining science fiction film that centred around a black monolith found in the moons Tycho crater, known as Tycho Magnetic Anomaly One (TMA-1). There would be no reason why NASA would go there for real.

I know it's your name, but no need to be so snarky!
ID: 1705282 · Report as offensive
Profile Bob DeWoody
Avatar

Send message
Joined: 9 May 10
Posts: 3049
Credit: 1,715,085
RAC: 1,386
United States
Message 1705298 - Posted: 26 Jul 2015, 16:29:28 UTC

Because NASA knows the difference between science fiction and scientific fact. Other than having a vivid imagination A.C. Clarke had no inside information regarding an artifact on the moon or elsewhere. Some of today's youth have grown up believing in space fairy tales.
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: 1705298 · Report as offensive
Profile Chris S Crowdfunding Project Donor*Special Project $75 donor
Volunteer tester
Avatar

Send message
Joined: 19 Nov 00
Posts: 40887
Credit: 41,444,537
RAC: 747
United Kingdom
Message 1705305 - Posted: 26 Jul 2015, 16:40:43 UTC

"The Sentinel" is a short story written by Arthur C. Clarke in 1948 and first published in 1951, which was used as a starting point for the novel and movie 2001: A Space Odyssey in 1968. Man didn't set foot on the moon until a year later.
ID: 1705305 · Report as offensive
Profile Smoke me a kipper
Volunteer tester
Avatar

Send message
Joined: 28 Apr 01
Posts: 122
Credit: 270,914
RAC: 0
United Kingdom
Message 1705310 - Posted: 26 Jul 2015, 16:59:31 UTC - in response to Message 1705298.  

Some of today's youth have grown up believing in space fairy tales.


Do you have a source for this claim? Or a lot of experience with today's youth? Or is that just an opinion based on your perception? :-)
We have nothing to fear but fear itself. Apart from pain. And maybe humiliation. And obviously death. And failure. But apart from fear, pain and humiliation, failure and the unknown and death - we have nothing to fear. Who’s with me?
ID: 1705310 · Report as offensive
Profile Bob DeWoody
Avatar

Send message
Joined: 9 May 10
Posts: 3049
Credit: 1,715,085
RAC: 1,386
United States
Message 1705342 - Posted: 26 Jul 2015, 19:25:15 UTC

I can just as easily turn that around and say you need to prove there is an object in Tycho crater that was planted by aliens and that NASA knows about it.
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: 1705342 · Report as offensive
Profile Chris S Crowdfunding Project Donor*Special Project $75 donor
Volunteer tester
Avatar

Send message
Joined: 19 Nov 00
Posts: 40887
Credit: 41,444,537
RAC: 747
United Kingdom
Message 1705519 - Posted: 27 Jul 2015, 8:34:44 UTC

Bob, Mr Snark is one of those that go trippy trappy over a bridge, and we are all falling for it!
ID: 1705519 · Report as offensive
Sirius B Project Donor
Volunteer tester
Avatar

Send message
Joined: 26 Dec 00
Posts: 19674
Credit: 2,700,713
RAC: 460
Ireland
Message 1705601 - Posted: 27 Jul 2015, 14:20:13 UTC - in response to Message 1705282.  

"2001 A Space Odyssey" was simply an entertaining science fiction film that centred around a black monolith found in the moons Tycho crater, known as Tycho Magnetic Anomaly One (TMA-1). There would be no reason why NASA would go there for real.

I know it's your name, but no need to be so snarky!

Being snarky makes one brighter & more creative :-)
ID: 1705601 · Report as offensive
Profile Lynn Special Project $75 donor
Volunteer tester
Avatar

Send message
Joined: 20 Nov 00
Posts: 12776
Credit: 45,575,093
RAC: 40,529
United States
Message 1707062 - Posted: 31 Jul 2015, 17:47:47 UTC - in response to Message 1705601.  

SETI Targets Kepler-452b, Earth's 'Cousin,' in Search for Alien Life


Scientists with the SETI (Search for Extraterrestrial Intelligence) Institute have already begun targeting Earth's "older cousin," Kepler 452b, the first near-Earth-size world found in the habitable zone of a sun-like star.

NASA announced the discovery of Kepler-452b last week, billing the planet as the closest thing yet to an Earth 2.0 beyond Earth's solar system. Researchers have used the Allen Telescope Array, a collection of 42 radio antennas in northern California, to study the planet for radio signals that could indicate the presence of intelligent extraterrestrial life. So far, the antennas haven't tuned into any broadcasts.

http://www.space.com/30114-seti-alien-life-kepler-452b-earth-cousin.html
ID: 1707062 · Report as offensive
Michael Watson

Send message
Joined: 7 Feb 08
Posts: 1056
Credit: 1,550,889
RAC: 1,083
Message 1707160 - Posted: 31 Jul 2015, 22:56:55 UTC
Last modified: 31 Jul 2015, 22:57:52 UTC

The cited article also indicates that they have so far listened to only about 20% of the frequency range they intend to check. Still early days.
I hope they'll also re-check the range already listened to. Intermittent signals are a real possibility.

For all we know, their only signal strong enough for us to hear could be a radar that tracks dangerous asteroids, with a beam sent in whichever direction is needed at the moment.
ID: 1707160 · Report as offensive
KLiK
Volunteer tester

Send message
Joined: 31 Mar 14
Posts: 1296
Credit: 13,744,492
RAC: 12,155
Croatia
Message 1710758 - Posted: 10 Aug 2015, 9:02:07 UTC - in response to Message 1707160.  
Last modified: 10 Aug 2015, 9:02:20 UTC

The cited article also indicates that they have so far listened to only about 20% of the frequency range they intend to check. Still early days.
I hope they'll also re-check the range already listened to. Intermittent signals are a real possibility.

For all we know, their only signal strong enough for us to hear could be a radar that tracks dangerous asteroids, with a beam sent in whichever direction is needed at the moment.

but to hear something over 1400ly with small antennas that we have - chances r dim!
:/

explanation:
http://setiathome.berkeley.edu/forum_thread.php?id=48591#794121

non-profit org. Play4Life in Zagreb, Croatia, EU
ID: 1710758 · Report as offensive
Profile adamtom
Volunteer tester
Avatar

Send message
Joined: 1 Sep 15
Posts: 3
Credit: 185,332
RAC: 79
Poland
Message 1730055 - Posted: 29 Sep 2015, 12:59:05 UTC - in response to Message 1710758.  

It is not known if Kepler-452b is a rocky planet or a small gas planet,[11] but based on its small radius, Kepler-452b has a reasonable chance of being rocky.[2] It is not clear if Kepler-452b offers habitable environments. It orbits a G2V-type star, like the Sun, with nearly the same temperature and mass and 20% more luminous.[7] However, the star is six billion years old, making it 1.5 billion years older than the Sun. At this point in its star's evolution, Kepler-452b is receiving 10% more energy from its parent star than Earth is currently receiving from the Sun.[5] If Kepler-452b is a rocky planet, it may be subject to a runaway greenhouse effect similar to that seen on Venus.
ID: 1730055 · Report as offensive
Profile Bob DeWoody
Avatar

Send message
Joined: 9 May 10
Posts: 3049
Credit: 1,715,085
RAC: 1,386
United States
Message 1730099 - Posted: 29 Sep 2015, 14:41:52 UTC

In my book everything we are being told about all of these exo planets falls into the SWAG category.
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: 1730099 · Report as offensive
1 · 2 · Next

Message boards : SETI@home Science : Kepler-452b


 
©2018 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.