Because they haven't sent us signals? (Reply #6)

In the discussion thread: Astronomers discover three habitable planets just 40 light years away [View all]

Mon May 2, 2016, 02:24 PM

6. Because they haven't sent us signals?

Last edited Mon May 2, 2016, 03:26 PM - Edit history (1)

If they're smart, they probably don't want such a violent species to know of their existence. Or we don't happen to have turned a radio telescope their way.

But... a brown dwarf? How long can it stay hot enough? A red dwarf has a nuclear furnace, and can burn many times longer than our own hotter star. But a brown dwarf will eventually radiate away its heat of creation. And it takes billions of years to evolve advanced life... Worth further investigation though!!

On edit: the article below lays out a case for brown dwarf planets that could exist in the (continually cooling) habitable zone of a Brown Dwarf for 0.1 to 10 billion years. That's potentially enough time for advanced life to evolve!

http://www.centauri-dreams.org/?p=13058

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35 replies	Author	Time	Post
Astronomers discover three habitable planets just 40 light years away [View all]	G_j	May 2016	OP
Heh just	Egnever	May 2016	#1
Aw come on... 40 light-years is but a hop, skip, and a jump!	cherokeeprogressive	May 2016	#2
Ensign... Warp 9...	tk2kewl	May 2016	#14
When you're talking cosmic proportions, 40 lys is just over yonder ---->	ChisolmTrailDem	May 2016	#8
Fair enough	Egnever	May 2016	#12
The Milky Way is 100,000 light years wide	KelleyKramer	May 2016	#18
Perspective	Stuckinthebush	May 2016	#32
Let's start building an Ark now	felix_numinous	May 2016	#3
Well, There Isn't Advanced Civilization There For Sure	ProfessorGAC	May 2016	#4
Because they haven't sent us signals?	lagomorph777	May 2016	#6
How Would They Stop It?	ProfessorGAC	May 2016	#15
Yes	felix_numinous	May 2016	#7
We don't need there to be an "advanced civilization" there...hell we don't have that here! Anyway..	ChisolmTrailDem	May 2016	#9
Again, I Was Kidding Around	ProfessorGAC	May 2016	#16
Ya we aren't even considered	JesterCS	May 2016	#28
The Time Window, encryption and advanced technologies.	Ichingcarpenter	May 2016	#34
And let's call it Noah's spaceship	meow2u3	May 2016	#24
Just ask the Golgafrinchans!	longship	May 2016	#27
Word is that they want all persons on our planet to stay away	malaise	May 2016	#5
Also that Earth is under quarantine	felix_numinous	May 2016	#10
This has the potential to be exponentially more exciting that it already is. If even simple life...	ChisolmTrailDem	May 2016	#11
K & R!	HuckleB	May 2016	#13
send cruz and trump	captainarizona	May 2016	#17
Sounds like one already has the first colony of Catholic space monks	pinboy3niner	May 2016	#19
I should probably research how life would evolve in such a system.	ladyVet	May 2016	#20
sadly, I think you're right n/t	Pakhet	May 2016	#22
You can detect an extrasolar transit with almost any telescope, the article is wrong on that	Fumesucker	May 2016	#21
Meanwhile, on the planet TRAPPIST-1 ...	aggiesal	May 2016	#23
Outside a relatively small distance from us, They don't love Lucy	IDemo	May 2016	#25
informative	G_j	May 2016	#30
that was also an 1880s Russian plan to recapture everyone's particle paths and resurrect them	MisterP	May 2016	#31
40 Light Years? Piece of Cake...	Oneironaut	May 2016	#26
If Trump wins I'm going there.	Lint Head	May 2016	#29
just forty lightyears away!?	wildbilln864	May 2016	#33
Sure putting a lot of money into finding a place to run to.	glinda	May 2016	#35

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