its a good news because our responsible astronomer once again found a mysterious diamond planet w/c is larger than earth this means that there are more other planet they can discover if we support them that would unlock the mystery of the universe'' im so happy and proud for them keep up the goodwork."

I name that planet De Beers & no one else to get a look in!

I am just glad that, in this instance, diamonds are in plentiful supply, here, on Mother Earth .

The only reason that diamonds are expensive is there is an international global cartel (enforced by nations no less!).

There is an enormous stockpile of diamonds and the market is drip fed (don't invest in diamonds).

Imagine what would happen if this was not the case.

If this planet rotates round its primary in 18 hours then it's almost certainly tidally locked, i.e. its axial rotation period is also 18 hours. Just like our own Moon this means that the same hemisphere will always face its star, so the night side will be extremely cold. Logically there will therefore be a point near the terminator which is at a temperature intermediate between 2,000K and the 100K or so you might expect on the night side. So not necessarily "baked". Walking would be somewhat difficult but not impossible - the surface gravity would be about 2g.

Clearly however the attraction of this story to the popular press is that the planet is "made of diamonds". Currently, there are about 26 tonnes of diamonds a year mined out of the ground, which is roughly 20 cubic metres in volume.

If this planet was in any way accessible then overnight diamonds would become about as valuable as gravel.

The Earth rotates on its axis every 24 hours (relative to the Sun) and revolves in orbit around the Sun once every year.

At 40 light years perfect ingredients for the wife's much desired "eternity" ring.

Dr Smith in "Lost in Space" would be so delighted.

David Spergel, professor of astronomy at Yale, said: "Stars are simple".

To which the reply at a conference some time ago was: if you were located at that distance, you too would look simple.

Bling bling!

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Here we go again! wild speculation & patetic half cooked lies.
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Must be (now) "the evolution of astronomy".
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Apart from that, .... who care "if" there are diamonds "there"?
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I will not tell my wife (or your).
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At what temperature does diamond burn in the absence of oxygen?

Planet made of crystal and no sea. Revelation: 15:2, and 21:1. Maybe we have discovered a new earth. :c)

I bet De Beers have already claimed it! I belive in Star Trek a planet with that sort of temp is called a Demon Planet.

It has been hypothesized that the temperature and
pressure inside the atmospheres of Uranus and Neptune can cause methane to
decompose and the released carbon cause crystals of diamond to form, possibly
the size of pebbles. And further, the energy released by this continuous
diamond hailstorm would help warm the planet.

Let's call it Lucy
Lucy in the sky with diamonds

guess how old i am?

93?

No, 64 like me. And she does still feed me.

and will when you are 65.

What more can you ask, rock on!

heard it non stop at college. But Arthur C Clarke used it for a name one of his stories and he was much older than me. He grew up in Somerset. I'm a immigrant.

I think you mean "The Diamond Moon"(1990) which is a novel by Paul Preuss in "Arthur C. Clarke's Venus Prime" -series(1987-91), this particular novel being based on Clarke's "Jupiter Five"(1953) short story.

Thank you Raimo

Which story was that? I'm a big fan of Arthur, read much of his stuff back in my hippy daze."
And welcome immigrant, so you have been here several decades then, do you think you will like?

One of the later stories, set on one of the moons of Jupiter? but, sorry, can't recall. I'm from Jersey, been here since the end of George VI's reign. Been in Zummerset almost 40 years-almost a native.

More tax payers cash down the toilet, I mean why bother?... It's 40 light years away ffs, lol to travel 4 light years with the fastest vehicle we have (18,000mph) would take 160 thousand years.

Buy yourself a ticket, live a little...

I would happily contribute to his "one way only" ticket. ;o)

As would I, this planet would be a much nicer place with him gone.

Far too many trolls round here....

Great!

Let's send all the bankers there.

One way trip.

50 footballers' wives join Sarah Brightman in asking how much it would cost to go into space, and are they allowed to bring pickaxes....

It seems that much of this type of astronomy is "extrapolating the universe from a piece of fairy cake". I take it with a pinch of salt.

Quite the contrary. Our knowledge of extrasolar planets is expanding with leaps and bounds.

Every new book about the subject is already partly outdated when it comes out thanks to the rapid increase in our knowledge.

Sometimes theories become speculation based on too little evidence, but the study of extrasolar planets overall is on a firm ground.

I haven't studied exactly what measurements are taken but I find it frustrating that these are not given in the article. For example, how was the "2150°C" deduced? Were spectral measurements taken of the planet itself? And how many assumptions are being made? In particular, it seems to me that density and temperature (even if these are known) are not enough to deduce chemical composition.

Spectral measurements were taken - by Spitzer space telescope - of the planet.

They observed the star before and during a transit by the planet and then removed the former from the latter. What remained came from the planet.

That helped to confirm the temperature and composition of the planet. The planet is very bright on infrared wavelengths, which helped to make the observations.

Thanks for that info, Raimo.

de Beers have already claimed it.

Graphite 63, Diamonds 3.
Final score.

'a planet similar to earth', ''a super earth'....but made of diamond and a temperature of 2000oc with no water or life whatsoever. Yes Very Similar!! These reporters suck!

Most of the at least 838 planets found outside our solar system are gas giants; this planet is a rocky terrestrial planet relatively close in size to Earth, thus it's similar to Earth.

Except it's over a thousand times hotter, twice the size and... oh nvm.

Details, details ...

And? Some gas giants have ten times the mass of Jupiter and they are still Jovian planets.

So very similar to Earth, then?

This particular planet is a terrestrial planet, so yes, it's similar to Earth.

"The diamond planet is one of five "exoplanets" orbiting a distant star called 55 Cancri, some 40 light years away from our own Solar System"

Actually, by astronomical standards, that's quite close, not distant.

Yep! They'll be getting all or television and radio programmes from 1972 this year. And no they don't pay the licence fee.

Lazy confused science reporting - yet ... again.

After reading the article ...... can anyone explain why this is a body that can be remotely referred to as a 'super Earth' ? In what remote way is it in any way similar or comparable to Earth ? and therefore merit this term ?

why has someone marked this post down just for asking a question? unbelievable.

Probably some old, festering, grudges.