NASA finds 1st habitable zone planet

[MEZZANINE]

And what would the benefit be

We come from a blue planet light-years away
Where everything multiplies at an amazing rate
We're out here in the universe buying real estate
Hope we haven't gotten here too late
We're humans from earth
We're humans from earth
You have nothing at all to fear
I think we're gonna like it here
We're looking for a planet with atmosphere
Where the air is fresh and the water clear
With lots of sun like you have here
Three or four hundred days a year
We're humans from earth
We're humans from earth
You have nothing at all to fear
I think we're gonna like it here
Bought Manhatten for a string of beads
Brought along some gadgets for you to see
Heres a crazy little thing we call TV
Do you have electricity?
We're humans from earth
We're humans from earth
You have nothing at all to fear
I think we're gonna like it here
I know we may seem pretty strange to you
But we got know-how and a golden rule
We're here to see manifest destiny through
Ain't nothing we can't get used to
We're humans from earth
We're humans from earth

^ He plays the guitar too


Nice one Papa, brought my rant back down to earth with a smile

[xDaku]

The most likely state of the planet is gaseous btw, just due to the mass. That does not mean it can't sustain life though - lots of people make that mistake. It's just has a lower probability than the other two.

[Juliette]

The most likely state of the planet is gaseous btw, just due to the mass. That does not mean it can't sustain life though - lots of people make that mistake. It's just has a lower probability than the other two.

The mass is unknown. The volume is estimated. Not much to go on, unless I misread your deduction?

[xDaku]

Whoops, didn't realize what I wrote lol. Going by the size and the probable gravity*

[Juliette]

Whoops, didn't realize what I wrote lol. Going by the size and the probable gravity*

I suppose you are working with the assumption that 'earthlike' implies a gravity of ~10(+/-1) m/s2? In that case, you are at least right in that it would be a planet with a rather low density.

Since gravity depends on the distance between the center of gravity of an attracting mass and the center of gravity of the attracted mass, you would also need to consider the 'extra distance' due to the planet being 2.5x Earth's size.
That 'extra distance' is 2200 kilometers.

Reasoning:
Volume Earth: 1.077605870999*10^15 m3 (radius Earth: 6360 km -source Wikipedia)
Volume Planet: 2.572440740633*10^15 m3 [~2.5x Volume Earth -source Article OP] (radius Planet: 8500 km)
[spoiler=Formula]http://en.wikipedia.org/wiki/Volume_of_a_sphere#Volume_of_a_sphere[/spoiler]

Assuming for the record that Earth's density is ~5,5 kg/m3 (core density over ~12 kg/m3) (http://en.wikipedia.org/wiki/Structure_ ... Earth#Core).
Using Newton's Law of Gravity as a basis (http://en.wikipedia.org/wiki/Newton%27s ... ravitation), a 'Planet's Gravity' of 10 m/s2 and a 'Planet's Radius' of 8500 km, 'Planet's Mass' comes out as 1.0827863201750442*10^25 kg. (source: http://easycalculation.com/physics/clas ... ration.php) If the calculation is correct, the result is not surprising, this would be 2 times as heavy as Earth.


To conclude; a planet with a similar gravity as Earth, with a higher volume, must be of a higher density as Earth. 'Rocky planets' have the highest density of all planets. Earth is a rocky planet. Any planet with a higher density as Earth must therefore be a rocky planet.



(I have not found any data regarding the planet's supposed gravity; however, using Earth as a point of reference in the interest of wishful thinking, the planet must be 'rocky' in order to fit the gravitational bill.)

[Coulson]

Okay.


I read "1st habitable zone planet", looked at Earth, and said: "Well, d'oh."

[Lithium]

its just the news released for pub but the finding ayeee prob time ago

[Jack]

@G: Maybe that planet has enough space for my ego. I need lebensraum.

While my first thoughts of that statement was to go off on some verbal moral tirade, thankfully-since this is a much lighter discussion-my humorous side won out (yes i do have a humorous side, it's not all "hate the bankers this, and doom and gloom that") lol...

Forget that planet...it's a good job that ego is not solid and have mass otherwise you would be eclipsing those blackholes on an order of magnitude capable of sucking in all of creation in the universe

I'll just leave my sig here and the quote contained therein.