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Old February 22nd, 2017, 12:54 PM   #11
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If they were peering with the same type of instruments we are using, nope. The dinosaurs died out 65 million years ago.

https://pubs.usgs.gov/gip/dinosaurs/extinct.html
If alien life is peering in on the Earth from a far galaxy at the right distance, they would see dinosaurs roaming the Earth.

My post was not regarding the planets in IT's OP. I was just making a general reference of what could be seen regarding dinosaurs as that seemed interesting.
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Old February 22nd, 2017, 01:01 PM   #12
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Maybe not all intelligent beings are homicidal and self-destructive.
Maybe earth is the universe's insane asylum.
There is a sign on the outskirts of our solar system that reads thar be cannibals.
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Old February 22nd, 2017, 01:07 PM   #13
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Seems like it's just a matter of time before life turns up somewhere else besides earth.
Major Discovery! 7 Earth-Size Alien Planets Circle Nearby Star

Astronomers have never seen anything like this before: Seven Earth-size alien worlds orbit the same tiny, dim star, and all of them may be capable of supporting life as we know it, a new study reports.

"Looking for life elsewhere, this system is probably our best bet as of today," study co-author Brice-Olivier Demory, a professor at the Center for Space and Habitability at the University of Bern in Switzerland, said in a statement.

The exoplanets circle the star TRAPPIST-1, which lies just 39 light-years from Earth a mere stone's throw in the cosmic scheme of things. So speculation about the alien worlds' life-hosting potential should soon be informed by hard data, study team members said.

"We can expect that, within a few years, we will know a lot more about these planets, and with hope, if there is life there, [we will know] within a decade," co-author Amaury Triaud, of the Institute of Astronomy at the University of Cambridge in England, told reporters on Tuesday (Feb. 21).
More: Major Discovery!*7 Earth-Size Alien Planets Circle Nearby Star
I just heard on NPR that the star they are circling may not have been so tiny and dim all the time. The planets are very close to the star (closer than Mercury is to our sun). Therefore, the star could have roasted the planets a long time ago.

Also interesting is that the planets are so close to each other that they would appear almost as big as our moon in the sky of the adjacent planets.
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Old February 22nd, 2017, 01:08 PM   #14
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But keep in mind that what we are seeing happened 39 million years ago. For all we know, there may have occured (nice neutral term) a single celled life form that evolved into a sentient and then intelligent creature which then developed civilization, industry and so on to the point of either polluting themselves to total death or annihilated themselves in a world war with their super sophisticated matter disassembling rays by now.
Good point. The speed of light really works.
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Old February 22nd, 2017, 01:12 PM   #15
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Right. And this one is 39 million LY away. So if they are looking at us right now, they are seeing wearth as it was 39 mil years ago. And 39 mil years ago, the dinosaurs were but a distant memory. Actually not even that. I'm pretty sure the critters around there then didn't have any concept of what there was 16 million years in their past.
This star is 39 light years away. The light from 1978 is available to them, All in the Family and Love Boat time!!
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Old February 22nd, 2017, 01:16 PM   #16
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This star is 39 light years away. The light from 1978 is available to them, All in the Family and Love Boat time!!
39? not 39 million?
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Old February 22nd, 2017, 01:53 PM   #17
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39? not 39 million?
39.
The exoplanets circle the star TRAPPIST-1, which lies just 39 light-years from Earth a mere stone's throw in the cosmic scheme of things.
We couldn't detect planets around a star 39 million light years away.
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Old February 22nd, 2017, 02:09 PM   #18
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This star is 39 light years away. The light from 1978 is available to them, All in the Family and Love Boat time!!
Sorry. I must have mis-read this. I thought it was 39 million light years.

By universe related standards, that's practically a neighbour.
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Old February 22nd, 2017, 02:31 PM   #19
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39.
The exoplanets circle the star TRAPPIST-1, which lies just 39 light-years from Earth a mere stone's throw in the cosmic scheme of things.
We couldn't detect planets around a star 39 million light years away.
That makes it a lot more interesting.
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Old February 22nd, 2017, 06:43 PM   #20
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Maybe not all intelligent beings are homicidal and self-destructive.
Maybe earth is the universe's insane asylum.
let's hope!
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