• We should now be fully online following an overnight outage. Apologies for any inconvenience, we do not expect there to be any further issues.

Scientists find "possibly habitable" distant planet

Page 2 - Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech.

Bootprint

Diamond Member
Jan 11, 2002
9,847
0
0
Originally posted by: Oscar1613
according to this site, the fastest exit velocity (of the solar system) is Voyager 1 at 38,600 mph, which means it would take 152,292,746 years to go 1 light year or 3,045,854,922 years to travel the 20 light years to this planet

Oh man, we better back a lunch and make sure everyone goes to the bathroom before we head out for that planet.
 

jmcoreymv

Diamond Member
Oct 9, 1999
4,264
0
0
Well if we can ever get decently close to traveling at the speed of light, it should be a lot quicker to get there.
 

NanoStuff

Banned
Mar 23, 2006
2,981
1
0
Originally posted by: Farang
We would need some sort of ship that could create its own energy and a crew that is dedicated enough to give their lives for the mission, along with advancements in reaching speeds fast enough to get people there in a reasonable amount of time (<50 years or so).
Sorry to disappoint you, but if anything from earth will be going to that planet, it won't be humans. At least not humans in any recognizable form today.

 

Flyback

Golden Member
Sep 20, 2006
1,303
0
0
Originally posted by: jmcoreymv
Well if we can ever get decently close to traveling at the speed of light, it should be a lot quicker to get there.

Nevermind that pesky relativistic change for when you come back to the 'hood afterwards.
 

novasatori

Diamond Member
Feb 27, 2003
3,851
1
0
what is the gravitational force on the planet?

I tried to figure it but I suck too much at physics and really don't know if there is enough info
I started with earth's base mass and radius and then tried to run it through equations and 1.5 the radius (says it's 50% wider) and 5x the mass (says it has 5x the mass) but came up with some way too big number - think I didn't convert units correctly
 

Dark4ng3l

Diamond Member
Sep 17, 2000
5,061
1
0
Even if we could send a probe it would have to be 100% self guiding and autonomous in every way plus any message sent back to us would take 20.5 years to get here. Considering that, at beast the craft could maybe take a few pictures and send a probe that could detect what kind of atmosphere is on the planet(maybe even some data on the solar system itself like how many planets detected and what type and maybe some pictures). Basically we need a huge jump in tech for a little data(not to mention if we assume 40 years to get there and 20.5 years for the data to be sent back it would be 60+ year wait before you get anything).
 

pontifex

Lifer
Dec 5, 2000
43,804
46
91
Originally posted by: batchusa
Why do some believe that Earth's conditions are the only ones suitable for life?

because most people are close minded tools or religious
 

2Xtreme21

Diamond Member
Jun 13, 2004
7,044
0
0
Originally posted by: novasatori
what is the gravitational force on the planet?

I tried to figure it but I suck too much at physics and really don't know if there is enough info
I started with earth's base mass and radius and then tried to run it through equations and 1.5 the radius (says it's 50% wider) and 5x the mass (says it has 5x the mass) but came up with some way too big number - think I didn't convert units correctly

g = G (m1 / r^2)

m1 = 5 * 5.9736x10^24 = 2.9868x10^25 kg
r^2 = ( (1.5) * 6.37101x10^6) ^2 = 9.1327x10^13 m

g = (6.6742x10^-11) (2.9868x10^25 kg / 9.1327x10^13 m)

= 21.828 m/s^2

Edit: To put that in perspective that is almost 2.25 times the force of gravity on Earth. It's equivalent to the force you feel when you're rounding a bend at the end of a drop on a fast roller coaster.
 

brandonb

Diamond Member
Oct 17, 2006
3,731
2
0
Originally posted by: pontifex
Originally posted by: batchusa
Why do some believe that Earth's conditions are the only ones suitable for life?

because most people are close minded tools or religious

Actually having an earth like planet in any solar systems is actually fairly slim!

Most star systems are binary stars, which is nearly impossible to have a habitable planet around, as the suns rotate around each other. Obviously that means the distance between the planets and sun is always changing and the temperatures and what not would fluxuate to the point of being inhabitable, not to mention the shifting of gravity due to the alignment of the suns.

http://en.wikipedia.org/wiki/Binary_star

Recent research suggests that a large percentage of stars are part of systems with at least two stars.
 

novasatori

Diamond Member
Feb 27, 2003
3,851
1
0
Originally posted by: 2Xtreme21
Originally posted by: novasatori
what is the gravitational force on the planet?

I tried to figure it but I suck too much at physics and really don't know if there is enough info
I started with earth's base mass and radius and then tried to run it through equations and 1.5 the radius (says it's 50% wider) and 5x the mass (says it has 5x the mass) but came up with some way too big number - think I didn't convert units correctly

g = G (m1 / r^2)

m1 = 5 * 5.9736x10^24 = 2.9868x10^25 kg
r^2 = ( (1.5) * 6.37101x10^6) ^2 = 9.1327x10^13 m

g = (6.6742x10^-11) (2.9868x10^25 kg / 9.1327x10^13 m)

= 21.828 m/s^2

Edit: To put that in perspective that is almost 2.25 times the force of gravity on Earth. It's equivalent to the force you feel when you're rounding a bend at the end of a drop on a fast roller coaster.
Cool, so I was on the right track, I guess I just fumbled somewhere. Thanks for the info, its pretty interesting, I wonder how much life would change living in that environment.
 

Jgtdragon

Diamond Member
May 15, 2000
3,816
19
81
Originally posted by: Oscar1613
according to this site, the fastest exit velocity (of the solar system) is Voyager 1 at 38,600 mph, which means it would take 152,292,746 years to go 1 light year or 3,045,854,922 years to travel the 20 light years to this planet

:thumbsup::D
 

Luthien

Golden Member
Feb 1, 2004
1,721
0
0
Originally posted by: Farang
20.5 light years is relatively close, and reaching it could be possible. We would need some sort of ship that could create its own energy and a crew that is dedicated enough to give their lives for the mission, along with advancements in reaching speeds fast enough to get people there in a reasonable amount of time (<50 years or so).

Now all of those advancements that we need are huge, but definately plausible some time in the future. It is exciting to think that reaching an extra terrestrial planet is within the realm of possibility.

Like we see in scientific flicks those scientists would have to have kids or bring infants to educate for the mission. Then there is the trip back if there is to be one. Indigenous life forms might eat them.
 

Luthien

Golden Member
Feb 1, 2004
1,721
0
0
Originally posted by: novasatori
Originally posted by: 2Xtreme21
Originally posted by: novasatori
what is the gravitational force on the planet?

I tried to figure it but I suck too much at physics and really don't know if there is enough info
I started with earth's base mass and radius and then tried to run it through equations and 1.5 the radius (says it's 50% wider) and 5x the mass (says it has 5x the mass) but came up with some way too big number - think I didn't convert units correctly

g = G (m1 / r^2)

m1 = 5 * 5.9736x10^24 = 2.9868x10^25 kg
r^2 = ( (1.5) * 6.37101x10^6) ^2 = 9.1327x10^13 m

g = (6.6742x10^-11) (2.9868x10^25 kg / 9.1327x10^13 m)

= 21.828 m/s^2

Edit: To put that in perspective that is almost 2.25 times the force of gravity on Earth. It's equivalent to the force you feel when you're rounding a bend at the end of a drop on a fast roller coaster.
Cool, so I was on the right track, I guess I just fumbled somewhere. Thanks for the info, its pretty interesting, I wonder how much life would change living in that environment.

Likely it would be smaller. Pigmy sized everything with the largest animals life being in the oceans. Insects and smaller animals would not be nearly as oppressed by higher gravity as large ones. Plants would be smaller too.
 

ranmaniac

Golden Member
May 14, 2001
1,940
0
76
Now all we need is to build a spacecraft that can go to ludicrous speed and can transform into a maid to suck out all the air.
 

LordMorpheus

Diamond Member
Aug 14, 2002
6,871
1
0
Originally posted by: KarmaPolice
20.5 light years away and thats just not possible to get to at the moment. In order to get there we will need some serious research in physics and figure out how to either push something to the speed of light or even sling it around a planet or something. I think half the speed of light is what some physics people think is attainable and that would take 40 years to get there and 40 years back....

40 years there and back to those of us on earth watching them go.

It'd be about 35 years there and back for the crew. Not a huge difference, but still, 5 years is a fairly long time. They'd probably spend it asleep in some sort of cryo-stasis. If we build a rocket to travel 20 light years we could figure something like that out.

Originally posted by: Farang
20.5 light years is relatively close, and reaching it could be possible. We would need some sort of ship that could create its own energy and a crew that is dedicated enough to give their lives for the mission, along with advancements in reaching speeds fast enough to get people there in a reasonable amount of time (<50 years or so).

Now all of those advancements that we need are huge, but definately plausible some time in the future. It is exciting to think that reaching an extra terrestrial planet is within the realm of possibility.

I deem that unlikely.
 

Leros

Lifer
Jul 11, 2004
21,867
7
81
Is this one of those things where after 5 years of watching a pixel wiggle around a picture of the night sky, we've concluded that that pixel is a planet and concluded that it is earthlike?
 

AbAbber2k

Diamond Member
Mar 1, 2005
6,474
1
0
Originally posted by: Leros
Is this one of those things where after 5 years of watching a pixel wiggle around a picture of the night sky, we've concluded that that pixel is a planet and concluded that it is earthlike?

:roll: