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/
still_one
(92,510 posts)that will take place when trump removes all the environmental protections
Ohioblue22
(1,430 posts)and the other side is frozen but in the area where they met there could be life
rurallib
(62,482 posts)angstlessk
(11,862 posts)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?
Ohioblue22
(1,430 posts)travel a minute fraction of it.
Bernardo de La Paz
(49,073 posts)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.
https://en.wikipedia.org/wiki/Interstellar_ark
angstlessk
(11,862 posts)my bad!
Bernardo de La Paz
(49,073 posts)angstlessk
(11,862 posts)the planet?
heaven05
(18,124 posts)with our fastest spacecraft, New Horizons, flying at 32,000mph would reach this 'earthlike planet in 817,000 years.
EarthFirst
(2,906 posts)Dead & Phish tour have conditioned me to put many miles down in a single jaunt...
Bernardo de La Paz
(49,073 posts)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)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
angrychair
(8,755 posts)Can we convince republicans to move?
forgotmylogin
(7,540 posts)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)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.
brooklynite
(94,974 posts)Kablooie
(18,647 posts)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)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?
KPN
(15,677 posts)Nitram
(22,965 posts)Just impossible to reach.