[neverdem]

Science
Arrows on a composite image of the comet Tempel 1 point to two areas where the surface is smooth instead of spotted with depressions.

[Mamzelle]

kewl--bump

[neverdem]

ping

[Red Badger]

Clays and carbonates both require liquid water to form.

Sez them..........

[DBrow]

bump for later.

Could be that they are interpreting their IR signals with a terracentric view.

It also seems a bit rash to me to be generalizing data for all Oort and Kuiper objects using data from just one.

[EternalHope]

It looks like an interesting article, but no way am I going to the New York Times to read the rest.

[Shark24]

Metaresearch.org has some explanations for this. Interesting none the less

[PfromHoGro]

"How do clays and carbonates form in frozen comets where there isn't liquid water?"

Remnants from a previous solar system I venture to guess.

[RightWhale]

It's taken a while for the analysis to start getting some results, as expected. The comet seems to be like a cottonball cone you would buy and possibly eat at the fair. There isn't much substance to it. But what there is would be very useful on the moon if they can get it there.

[adaven]

Hmmm... evidence of Tiamat? What do Enki, Enlil, and the rest of the Nibiruians have to say about this? ;-)

[CzarNicky]

"How do you do that and then how do you put that stuff into a comet that forms out by Pluto?" Dr. Lisse said.

the obvious answer is that it formed somewhere warmer.

[null and void]

but silicates line up in neat crystal structures only when they are warmed to 1,300 degrees Fahrenheit - temperatures reached at around the orbit of Mercury - and then cooled.

Uh huh, and diamonds can only be formed under high pressure.

(Unless you are growing them commercially in a low pressure chemical vapor deposition reactor)...

[Mikey_1962]

Its obviously an Ice Rink, anyone who loves hockey could have explained this!

GAME ON!

[vannrox]

Nice post.

It has long been known that our star; the sun, is a fourth generation star. In other words, it was created from the dust and debris of an earlier star. Which, the earlier star, was formed from the dust and debris from a yet even earlier star. Thisstar as also formed from the debris of an earlier star which was formed from a star that was created from the debris left over from the big bang.

By all accounts, each star had planets, as we know know that systems with planetary bodies are quite common.

Why would it be too difficult to understand that one of these earlier planets had life on it? Is it really too difficult to understand the life form that might be billions of years old?

[Bittersweetmd]

ping

[SunkenCiv]

third of four

[SunkenCiv]

[SunkenCiv]

Phase diagram of water revised
PhysOrg
Thursday, October 5, 2006

Supercomputer simulations by two Sandia researchers have significantly altered the theoretical diagram universally used by scientists to understand the characteristics of water at extreme temperatures and pressures. The new computational model also expands the known range of water's electrical conductivity. The Sandia theoretical work showed that phase boundaries for "metallic water" -- water with its electrons able to migrate like a metal's -- should be lowered from 7,000 to 4,000 kelvin and from 250 to 100 gigapascals. (A phase boundary describes conditions at which materials change state -- think water changing to steam or ice, or in the present instance, water -- in its pure state an electrical insulator -- becoming a conductor.) The lowered boundary is sure to revise astronomers' calculations of the strength of the magnetic cores of gas-giant planets like Neptune. Because the planet's temperatures and pressures lie partly in the revised sector, its electrically conducting water probably contributes to its magnetic field, formerly thought to be generated only by the planet's core. The calculations agree with experimental measurements in research led by Peter Celliers of Lawrence Livermore National Laboratory.