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

Lets focus on this putative planet and see if they sent us any kind of message 1400 years ago.

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.

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 :-)

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.

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?

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.

"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 :-)

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

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.

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

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.

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.

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.

did u quote a Wiki, or u write in Wiki?
https://en.wikipedia.org/wiki/Kepler-452b#Properties

btw, data doesn't confirm that!
Temperature (T) 265 +15/−13 K[1]
(−8 +15/−13 °C, 17.6 +27/−23.4 °F)

why?
Kepler 452b is more distant in Habitable zone from their star, than Earth is from Sun! Check numbers...
;)

---

non-profit org. Play4Life in Zagreb, Croatia, EU

Since we do not know what sort of an atmosphere Kepler 452b has, the calculated temperature could not take that into account. It's presumably based solely on the heat available from the star, at the given distance, and for a planet of the expected size.
We know that an atmosphere can play a significant role in warming a planet. The Earth has an average temperature of 287 K., but if it had no atmosphere this would be about 255 K.
If Kepler 452b has a 'base' temperature of 265 K. , the presence of an Earth-like atmosphere would presumably raise this to somewhat above the current average temperature of Earth.
Since the Kepler planet has a mass several times that of Earth, it seems probable that it retains a thicker atmosphere. This could lead to even better heat retention, and a yet higher temperature.

I don't know if this article applies to Kepler-452b?

Half of Kepler's giant exoplanet candidates are false positives


An international team led by Alexandre Santerne from Instituto de Astrofísica e Ciências do Espaço (IA), made a 5-year radial velocity campaign of Kepler's giant exoplanet candidates, using the SOPHIE spectrograph (Observatory of Haute-Provence, France), and found that 52.3 percent were actually eclipsing binaries, while 2.3 percent were brown dwarfs.

Santerne, first author of this paper commented: "It was thought that the reliability of the Kepler exoplanets detection was very good – between 10 and 20 percent of them were not planets. Our extensive spectroscopic survey of the largest exoplanets discovered by Kepler shows that this percentage is much higher, even above 50 percent. This has strong implications in our understanding of the exoplanet population in the Kepler field."

http://phys.org/news/2015-12-kepler-giant-exoplanet-candidates-false.html

---

I have always had a suspicion that they were stretching the interpretation of the data from Kepler, but even if only 20% of the candidates are truly planets there are still a bunch of them out there.

---

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.

I don't know if this article applies to Kepler-452b?

Half of Kepler's giant exoplanet candidates are false positives


An international team led by Alexandre Santerne from Instituto de Astrofísica e Ciências do Espaço (IA), made a 5-year radial velocity campaign of Kepler's giant exoplanet candidates, using the SOPHIE spectrograph (Observatory of Haute-Provence, France), and found that 52.3 percent were actually eclipsing binaries, while 2.3 percent were brown dwarfs.

Santerne, first author of this paper commented: "It was thought that the reliability of the Kepler exoplanets detection was very good – between 10 and 20 percent of them were not planets. Our extensive spectroscopic survey of the largest exoplanets discovered by Kepler shows that this percentage is much higher, even above 50 percent. This has strong implications in our understanding of the exoplanet population in the Kepler field."

http://phys.org/news/2015-12-kepler-giant-exoplanet-candidates-false.html

that's not a problem by me...Kepler data has to be checked & rechecked!
especially as majority of them are not planets, but are stars...a binary stars...imagine that - isn't that awesome to know?!

only problem is to find out more about "false positives", which come from a neighboring star light influence...those are the only problem - 'cause you think you see sthg, you don't really see!
;)

---

non-profit org. Play4Life in Zagreb, Croatia, EU

I don't know if this article applies to Kepler-452b?

Half of Kepler's giant exoplanet candidates are false positives


An international team led by Alexandre Santerne from Instituto de Astrofísica e Ciências do Espaço (IA), made a 5-year radial velocity campaign of Kepler's giant exoplanet candidates, using the SOPHIE spectrograph (Observatory of Haute-Provence, France), and found that 52.3 percent were actually eclipsing binaries, while 2.3 percent were brown dwarfs.

Santerne, first author of this paper commented: "It was thought that the reliability of the Kepler exoplanets detection was very good – between 10 and 20 percent of them were not planets. Our extensive spectroscopic survey of the largest exoplanets discovered by Kepler shows that this percentage is much higher, even above 50 percent. This has strong implications in our understanding of the exoplanet population in the Kepler field."

http://phys.org/news/2015-12-kepler-giant-exoplanet-candidates-false.html

don't worry:
http://www.popularmechanics.com/space/a18397/half-of-keplers-planet-finds-havent-disappeared/?mag=pop&list=nl_pnl_news&src=nl&date=120415
;)

---

non-profit org. Play4Life in Zagreb, Croatia, EU

News!

NASA's Kepler Comes Roaring Back with 100 New Exoplanet Finds

KISSIMMEE, Fla. — NASA's Kepler spacecraft has bounced back nicely from the malfunction that ended its original exoplanet hunt more than two years ago.

Kepler has now discovered more than 100 confirmed alien planets during its second-chance K2 mission, researchers announced today (Jan. 5) here at the 227th Meeting of the American Astronomical Society (AAS).

http://www.space.com/31528-100-alien-planets-discovery-nasa-kepler-spacecraft.html

---