Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

NASA’s Webb finds carbon source on surface of Jupiter’s moon Europa

webbtelescope.org

Post reply on HN
Print view View original

161–170 of 278 posts

Re: NASA’s Webb finds carbon source on surface of Jupiter’s moon Europa

#161

Post by alex_young »

rcpt wrote: post #144
labster wrote: post #143

Earlier quoted context omitted.

Point 1 above greatly understates the case. Water just sitting in a glass is constantly creating and destroying hydronium and hydroxide ions, and bare protons. Not to mention the carbon dioxide that gets dissolved as carbonic acid which can dissociate to bicarbonate. On the other hand, its tough to talk about new water because under thermodynamics, all atoms of the same isotope at the same energy state are completely…

If a few water molecules are destroyed and replaced created over a long time then is it still the same glass of water?

The famous glass of Theseus’ water eh? https://en.m.wikipedia.org/wiki/Ship_of_Theseus

Re: NASA’s Webb finds carbon source on surface of Jupiter’s moon Europa

#162

Post by BurningFrog »

postmodest wrote: post #136
BurningFrog wrote: post #129

Earlier quoted context omitted.

This is why I roll my eyes at alarmist talk of various processes "consuming X zillion gallons of water". Water is much stronger than that. It just passes through our processes and will outlast us all.

Your sort of responses to climate alarms are always the most disingenuous. We are consuming water from places where it has been relatively static, at rates far beyond its natural replenishment rate. THAT'S the issue. Yes, this is a closed system, and the human circulatory system is a closed system. But it's bad if you drain the blood from your brain faster than it is replenished.

I'm not being disingenuous. I honestly have a different analysis and opinion than you.

Re: NASA’s Webb finds carbon source on surface of Jupiter’s moon Europa

#163

Post by Phrenzy »

ijidak wrote: post #98

Why does one random Jovian moon have so much water? And why not all similarly sized rocky bodies in the solar system? Isn't this even stranger than Earth's water?

Here is a great series about the water in the outer solar system & the rest of the Universe.

Re: NASA’s Webb finds carbon source on surface of Jupiter’s moon Europa

#164

Post by BurningFrog »

d-lisp wrote: post #153
BurningFrog wrote: post #131

Earlier quoted context omitted.

If it turns out to not have life, we should introduce Earth life and let evolution run amok there. I realize some conservationists disagree.

This could be the cause of our presence

Gotta pay it forward!

Re: NASA’s Webb finds carbon source on surface of Jupiter’s moon Europa

#165

Post by quickthrower2 »

BurningFrog wrote: post #129
dmix wrote: post #87

> a fascinating world with a salty, subsurface ocean of liquid water—possibly twice as much as in all of Earth’s oceans combined. If we brought water back a container of water from Europa would this be the largest amount of new water entering the earth since planets struck it billions of years ago? I briefly googled it (I dont know much about this stuff tbh): > The water on our Earth today is the same water that’s be…

This is why I roll my eyes at alarmist talk of various processes "consuming X zillion gallons of water". Water is much stronger than that. It just passes through our processes and will outlast us all.

“Water” is overloaded. They may mean drinkable water.

Re: NASA’s Webb finds carbon source on surface of Jupiter’s moon Europa

#166

Post by Phrenzy »

monlockandkey wrote: post #21

Europa is definitely the most exciting part of the solar system that sparks imagination. Literally 100s of miles of pitch black ocean with thermal vents, ripe for life. Getting kiddy thinking about the leviathan sized aliens roaming the deep ocean of Europa. Does anyone else feel this way?

I am excited to see what can be in Europa's deep oceans. But I've always felt Enceladus would be a better place to start looking. Europa requires a lot of burrowing into ice, whereas Enceladus could reveal some of its secrets with a couple of proper flybys.

Re: NASA’s Webb finds carbon source on surface of Jupiter’s moon Europa

#167

Post by Phrenzy »

xwdv wrote: post #82
monlockandkey wrote: post #21

Europa is definitely the most exciting part of the solar system that sparks imagination. Literally 100s of miles of pitch black ocean with thermal vents, ripe for life. Getting kiddy thinking about the leviathan sized aliens roaming the deep ocean of Europa. Does anyone else feel this way?

Wondering if we could eat fish born on Europa and if there would be any ill effects.

This is where chirality rears its ugly head.

Re: NASA’s Webb finds carbon source on surface of Jupiter’s moon Europa

#168

Post by keepamovin »

ramraj07 wrote: post #140
keepamovin wrote: post #128

Linda Moulton-Howe covered some testimony from "insiders" that alleged that there is an octopus type species living under the ice covered ocean of Europa. I have no idea which Earthfiles episode this was in, but cool if true.

Did they use a secret trillion dollar X ray glass telescope to peer through Europa's miles thick ice sheet and see?

Skepticism is warranted, but there's no need for mockery. It only insults your humility in front of the great mystery.

But to answer the question: I think they drilled down there, or sent a probe, but equally it could have been something told to them by an ET. But I can't recall the specifics.

Re: NASA’s Webb finds carbon source on surface of Jupiter’s moon Europa

#169

Post by keepamovin »

alluro2 wrote: post #158
ramraj07 wrote: post #140

Earlier quoted context omitted.

Did they use a secret trillion dollar X ray glass telescope to peer through Europa's miles thick ice sheet and see?

Of course not - much more traditional methods - interrogation of their spies on Earth, cuttlefish.

That's quite funny, haha. But I think the story might be related to this, the insider told Linda this, and I can't recall directly, but the info may have been told to the insider by an ET.

Re: NASA’s Webb finds carbon source on surface of Jupiter’s moon Europa

#170

Post by mechanicalpulse »

d-lisp wrote: post #153
BurningFrog wrote: post #131

Earlier quoted context omitted.

If it turns out to not have life, we should introduce Earth life and let evolution run amok there. I realize some conservationists disagree.

This could be the cause of our presence

The Venusians certainly weren't conservationists.
Post reply on HN