Some stars are fucking HUGE. Lookie

http://upload.wikimedia.org/wikipedi...Star-sizes.jpg

last thing i heard was this betelgeuse,now when i see VY Canis Majoris its like,i can imagine how would earth look like,like a tiny invisible piece of dust.i can only imagine what kind of things you can find in space,like an earth like planet that makes earth look like a golf ball(100× the size of earth or even more)or planets made out of iron,or diamonds,or crystals...its truly limitless,but you just need to search

A planet made of diamond would need to be staggeringly huge and very close to a star.

yeah,i heard there are grafit planets,that have lots of grafit blocks,diamonds,and anything grafit related,and coal

i found the scale between the sun and that huge star you posted,it looks like a spec
http://daddyblog.files.wordpress.com...ajorissvg1.png

Maybe the word you are looking for is carbon?

A planet that size would not, by definition, be Earth-like. I'm not sure that a rocky planet that size would even be stable, or that you can cram enough matter into an accretion disk to create a single planet with that much of it. Even if you did, it could not be Earth-like.

Yeah, a perfectly formed ball of carbon is unlikely to have much of anything conductive to an atmosphere.

well who knows they found one super earth type planet,only its 10× bigger than earth.i found that a planet in our solar system named sedna takes 12.000 years to make a full orbit around the sun http://en.wikipedia.org/wiki/90377_Sedna
http://upload.wikimedia.org/wikipedi...05569-crop.jpg red is sedna's orbit
she will be closest to the sun at 2076

I don't think it would need to be close to the star, the planet itself could provide all the pressure and heat required, as it actually does. But more likely such a planet would be the core of an ancient dead star.

Being made exclusively of carbon could it provide enough heat during formation to make the surface diamond as well?

Pressure is also required. No geological metamorphosis requiring pressure can occur on the surface, and I don't think atmospheric pressure can do the trick. Unless something blasted off the outer layers, but I don't know what could do that satisfactorily.

I suppose it's theoretically possible for our diamond planet to be hit by a tonne of meteorites over millions of years in such a way that the surface layer was blasted off. Our theoretical planet is made of diamond after all, it's going to stand up pretty well against mere flaming balls of iron.

Being hit by meteorites usually increases the mass of a planet by having more stuff put on it.

Mined for tens of thousands of years by some mercantile aliens who reckon diamond mining is just far too much effort?

I wonder how pretty and insanely bright it would be when a sunset reflects off it.

Insanely. Providing, of course, that someone had seen fit to have it cut.

Cleansly mercentile aliens.

That's your answer to everything.

Maybe your hypothetical diamond planet had it's outer layers ripped of by a dying star?

I shouldn't expect that would be even nor that even the diamond core would survive. I think it much more likely that this planet would actually be a dead star.


Of course, I am fully prepared to be proved totally and utterly wrong by genuine discovery, as a good deal of astronomical assumptions and expectations have been (usually by probes).

in our theoretical diamond planet is it possable that the same pressure that made the diamonds slowly pushed them up to the surface, the outer layer could be diamonds and the inner layer would be coal with some diamonds pushing up

No, on every count. Firstly: no coal. Coal is the fossils of trees, primarily of the Carboniferous period. Life is required for coal, and active geological processes. Secondly: Pressure is a force exerted inwards, toward the centre of a planet, due to the weight of all the mass above it. Geological processes do force material to the surface, and a diamond planet will likely have none anyway. Diamonds of any size are not known for their internal activity.

Ever wonder...if humanity needed diamond so much that they'd sacrifice everything to get it?

Think they'd ever harvest Sol? (Sol being the sun)

Just a thought... would humanity go to such extremes?

If we had the technology readily available, certainly.

So we'd be set to take away the thing that gives us life?

Hah...seems humanity's ignorance would be placed before our way of life.

Given that Sol is not the right type of star to contain carbon... no, they wouldn't.

If it was, then it would depend why they needed it. If it was a choice between destroying the sun and attempting to use technology to live with out it, or certain death by not coming up with a diamond... of course they would.

Isn't Sol's core made of diamond?

According to wikipedia, less than 0.3% of the mass of the sun is Carbon. And most of the nuclear reactions in the core are hydrogen-based.

I can find nothing about sol containing diamond, either.

Supposing it did, if we had another planet that depended on another sun and no rational need for the ol' girl anymore I can see no reason why we wouldn't.

Hah, really?

Shit, I mind reading somewhere, for the life of me I cannot mind which star (if one or more) had a diamond core.

Further research is required.

I've read somewhere that stars can. I'd assume that they would need to be those carbon star things.

EDIT: It seems that it's possible for white dwarfs to crystallise.

Brown dwarves can crystallize because they are so cold or something. I found out yesterday the coldest star in the known universe (a brown dwarf) has a surface temperature of just 350 degrees C

I'm disappointed that I can't think of a Warhammer joke to put in there.

What could we possibly need with so much diamond? The cost of acquiring any of it would be greater than the value of it, you'd either not get enough, and if you got all of it, it's still worthless because it is a mass greater than that of the Earth that can't be sold or stored or anything. I know we pretend to exchange gold everyday while leaving it where it is, but no one has attempted to trade with diamond stars hundreds of lightyears away, for good reason.

Also, if you did get any of it, the value of diamond would plummet like nothing in history, it would be worth less than dirt (mainly because we'd have significantly more diamond than dirt, but also because dirt is actually useful). I know the diamond industry would quash any industrious expedition to the diamond planet, if none of the other reasons were somehow good enough.

The only value in diamond stars and planets is scientific illumination, which is worth more than diamonds anyway.

it would be nice to make a ship with a stasis field,you enter fly into space,set course,go to stasis,wake up at the planet,take a chunk of diamond and return to earth,and become a millionare.

I'll throw you into Jupiter's gravity well.

• DIAMONDS FOR THE FABULOUS GOD
• In the grim diamondness of the far future, there is only... ore.
• I hear Space Marines can cut diamonds just by looking at them funny.
• So I bought my girlfriend a diamond Necrolace.

This is hard.

The fourth one was a real gem.

If there are any people left to sell it to after a millions years of space travel, and if there is still a worthwhile economy amenable to such an endeavour, and if diamonds are still worth anything, and if diamonds are still worth anything after you arrive to flood the market with them.

yeah,but the only exctiting thing would it be that you managed to go to another star and walk on it :)

i got a joke for diamonds,chuck norris can cut diamonds with his mind

Diamonds normally are.

*Badump-tisch*