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brooklynite

(94,974 posts)
Fri Apr 7, 2017, 04:12 PM Apr 2017

There's an Earth-like planet with an atmosphere just 39 light-years away

Source: Washington Post

There are a lot of good reasons to be captivated by the exoplanet GJ 1132b. Located in the constellation Vela, it's a mere 39 light-years from Earth — just a hop, skip and a jump in galactic terms. It's similar to Earth in terms of size and mass, and it dances in a close-in orbit around its star, a dimly burning red dwarf.

And, astronomers recently discovered, it has an atmosphere.

The finding, published in the Astronomical Journal, is the first detection of an atmosphere around a terrestrial “Earth-like” planet orbiting a red dwarf star — and it suggests there could be millions more.

Although the researchers call the planet “Earth-like,” the term is only applicable in its broadest sense. GJ 1132b is so close to its sun that it more likely resembles Venus than Earth. Astronomers estimate its average temperature to be about 700 degrees Fahrenheit, and that's without taking into account the potential greenhouse effect of its atmosphere. It is also probably tidally locked, meaning that gravity keeps one side of the planet constantly facing the star, while the other is cast in permanent shadow. GJ 1132b would not make a cozy home for life — at least, not life as we know it.

But the presence of an atmosphere around the exoplanet could have consequences in the search for life on worlds beyond our own, according to lead author John Southworth, an astrophysicist at Keele University in the United Kingdom. Red dwarfs like the one GJ 1132b orbits are the most abundant type of star in the universe, and exoplanet surveys suggest that terrestrial planets around them are also common. If one of them has an atmosphere, then why not more?

Read more: https://www.washingtonpost.com/news/speaking-of-science/wp/2017/04/07/theres-an-earth-like-planet-with-an-atmosphere-just-39-light-years-away/

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There's an Earth-like planet with an atmosphere just 39 light-years away (Original Post) brooklynite Apr 2017 OP
Sorry but 700 degrees F is NOT earthlike, unless they are referring to the global warming still_one Apr 2017 #1
well it's an average and it's tidally locked so one side is melted Ohioblue22 Apr 2017 #4
sounds like climate change denying republicans have already been there rurallib Apr 2017 #12
39 light years is 7 million 254 thousand miles away angstlessk Apr 2017 #2
if you traveled at the sol it would take 39 years. but we Ohioblue22 Apr 2017 #6
1) Wrong, 2) C, and 3) Yes. Bernardo de La Paz Apr 2017 #7
You are correct...that is one light SECOND... angstlessk Apr 2017 #8
Distance you gave is 39 light seconds. One light second is 186,000 miles, 300,000 km. . . nt Bernardo de La Paz Apr 2017 #10
A list of two of each animals on angstlessk Apr 2017 #9
FYI--1 light year is 5.9 trillion miles heaven05 Apr 2017 #18
Road trip? EarthFirst Apr 2017 #20
Two points Bernardo de La Paz Apr 2017 #3
/ Matthew28 Apr 2017 #5
The important question is... angrychair Apr 2017 #11
All it needs to do is spin, stay with me... forgotmylogin Apr 2017 #13
If some form of intelligent life does exist there...... paleotn Apr 2017 #14
Actually they're watching BATTLESTAR GALACTICA and getting ready to invade. brooklynite Apr 2017 #15
Think we could send a ship of colonists there within the next 4 years? Kablooie Apr 2017 #16
Fascinating. But why... Honeycombe8 Apr 2017 #17
Details aside, I'm ready to move there. KPN Apr 2017 #19
"Just" 39 light years away? What is that supposed to mean? Nitram Apr 2017 #21

still_one

(92,510 posts)
1. Sorry but 700 degrees F is NOT earthlike, unless they are referring to the global warming
Fri Apr 7, 2017, 04:17 PM
Apr 2017

that will take place when trump removes all the environmental protections


 

Ohioblue22

(1,430 posts)
4. well it's an average and it's tidally locked so one side is melted
Fri Apr 7, 2017, 04:29 PM
Apr 2017

and the other side is frozen but in the area where they met there could be life

angstlessk

(11,862 posts)
2. 39 light years is 7 million 254 thousand miles away
Fri Apr 7, 2017, 04:22 PM
Apr 2017

How fast does one have to travel to get there in one lifetime?

Or can a spaceship support a family whose grand children might land on that distant planet?

Bernardo de La Paz

(49,073 posts)
7. 1) Wrong, 2) C, and 3) Yes.
Fri Apr 7, 2017, 04:35 PM
Apr 2017

1) Your calculation is way off.

39 light years is 229,266,390,000,000 miles away. That's 229 trillion miles away.

2) c is the speed of light, so if you travel at the speed of light you would get there in 39 years.

If you accelerate to near the speed of light at 1 G (equivalent to gravity on Earth surface) the trip would take 40.9 years, but it would seem like only 7.25 years for you.

http://convertalot.com/relativistic_star_ship_calculator.html
http://nathangeffen.webfactional.com/spacetravel/spacetravel.php

3) Yes. Not only is it a classic science fiction concept, but it is also the subject of serious study.

An interstellar ark or Generation ship is a conceptual space vehicle designed for interstellar travel. Interstellar arks may be the most economically feasible method of traveling such distances. The ark has also been proposed as a potential habitat to preserve civilization and knowledge in the event of a global catastrophe.

https://en.wikipedia.org/wiki/Interstellar_ark
 

heaven05

(18,124 posts)
18. FYI--1 light year is 5.9 trillion miles
Fri Apr 7, 2017, 11:44 PM
Apr 2017

with our fastest spacecraft, New Horizons, flying at 32,000mph would reach this 'earthlike planet in 817,000 years.

Bernardo de La Paz

(49,073 posts)
3. Two points
Fri Apr 7, 2017, 04:24 PM
Apr 2017

1) If it is tidally locked, then there are probably cooler areas, like on earth around sub-sea vents. We would call them hot, but life could thrive without sunlight in zones like that.

2) There is no Planet B.

Matthew28

(1,798 posts)
5. /
Fri Apr 7, 2017, 04:29 PM
Apr 2017

The planets that I'd like to see confirmation next.....

Proxima Centauri b
Wolf 1061c
Gliese 832 c
Gliese 682 c
Gliese 667 Cc
GJ 273b Luyten's Star
Luyten's Star
TRAPPIST-1e
TRAPPIST-1f

forgotmylogin

(7,540 posts)
13. All it needs to do is spin, stay with me...
Fri Apr 7, 2017, 07:39 PM
Apr 2017

we use a nuke to redirect a large asteroid at it to slingshot around and start it spinning on a day cycle.

Then the moment the atmosphere equalizes we GO.

WHY IS NOBODY STARTING TO BUILD THE SHIP??

paleotn

(18,014 posts)
14. If some form of intelligent life does exist there......
Fri Apr 7, 2017, 09:08 PM
Apr 2017

they're watching Dallas and Happy Days beamed from Earth. Probably wondering..."who the hell are those primates?! No intelligent life on THAT planet."

At least they've got another year before the Dukes of Hazzard 1st season arrives. Subjecting the galaxy to Bo and Luke is reason enough for exterminating us.

Kablooie

(18,647 posts)
16. Think we could send a ship of colonists there within the next 4 years?
Fri Apr 7, 2017, 09:41 PM
Apr 2017

It may be the only way the human race will survive the reign of the orange madman who has complete, unrestricted command of the US nuclear arsenal.

(I heard RadioLab podcast today explaining that the president can launch nuclear weapons on a whim if he wishes. That's how the system is designed. No one is in a position to prevent it if he decides to use them.)

Honeycombe8

(37,648 posts)
17. Fascinating. But why...
Fri Apr 7, 2017, 11:42 PM
Apr 2017

why do scientists think that all life will require the same things as human life does? Why not life that does not require, say, oxygen? Or water?

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