Preface: not a climate denier, just curious.

I recently saw this again on the news and I'm wondering, if the majority of icebergs sits underwater and ice is less dense than water, shouldn't the pole caps melting in isolation lower sea levels? Is it just a thing in the news because it's more intuitive than the larger bodies of water expanding when heated or am I missing something?

Basically, where to get a strand of DNA for the most efficient sequencing?

If so, how? And if not, what do they do?

In the abstract of the article referenced below, it says "Water ice was not detected" then goes on to say "This composition indicates hydrogenation of carbon monoxide-rich ice and/ or energetic processing of methane condensed on water ice grains in the cold, outer edge of the early Solar System".

This seems to be a contradiction. What does this mean?

Ref: Astrophysics > Earth and Planetary Astrophysics arXiv:2002.06720 (astro-ph) [Submitted on 17 Feb 2020] Color, Composition, and Thermal Environment of Kuiper Belt Object (486958) Arrokoth

https://arxiv.org/abs/2002.06720

edit: formatting bolding and italics

Uranus' moons are predicted to collide in the distant future. Will this affect the rest of the solar system, ie, will smaller fragments hit other planets? Or will it just form a ring around Uranus?

I know yeast is a living organism, but never really understood what the whole process involves.

Is this new "chocolatey" trend an attempt to deceive consumers looking to purchase chocolate? Is a chocolatey bar any different than a chocolate bar? If so, what is choclatey made of?

Like does an increased heartrate make our thoughts more consistent or a decreased heartrate make our thoughts more choppy?

Historically many countries that nowadays aren't associated with malaria had big issues with this disease, but managed to eradicate later. The internet says they did it through mosquito nets and pesticides. But these countries still have a lot of mosquitoes. Maybe not as many as a 100 years ago, but there is still plenty. So how come that malaria didn't just become less common but completely disappeared in the Middle East, Europe, and a lot of other places?

I heard that a bee's sting becomes stuck in humans due to the elasticity of our skin. Which causes the bee's barbed stinger to be lodged in our skin, and the bee ultimately dies as the stinger and the main body of the bee becoming separated.

Is this the case for other animals; such as mammals, birds and reptiles and every bee sting is a kamikaze for the bee? Or can the bee sting other animals and not die?

Sorry if this is not a science question hah.

It kind of seems like H relates more to what it can infect and N is relates to the severity of illness. But that also seems like maybe it's too simplistic.

Like from reading it seems like H1,2 and 3 are the only known to infect humans but does that continue for the remaining 15.

N1 and 2 seem to correlate to epidemics and 3 and 7 more isolated deaths.

Or is it just impossible to simplify it in that way? Like could a pathologist see H8N5 and know what species it could infect and how severe the infection and fatality rate would be?

I remember that pig organs can be transplanted into human bodies, human and pig flesh are described as having the same taste and texture, I vaguely remember seeing a thing years back where pig cells were used to repair a damaged human heart. Why are pigs able to be used like this for humans?

He asked why a fart stops smelling bad after a few minutes and I told him it's because the gas molecules spread out and spread out until they're spread too thin for our noses to detect.

But he then followed up with "so they keep flying away for ever and ever into outer space?" And I don't know! Do the gas molecules from farts break down and get destroyed or do they live an immortal existence where they wander aimlessly forever?

Edit: we (my kid and I) want to thank everyone for such detailed responses! I now know more about the properties of farts than I ever thought I wanted to know.

Hey all, I was wondering what specifically makes nascent mRNA more susceptible to degradation than the post-transcriptional mature mRNA?

Jiktang Falls, South Korea, I pictured this

Hello, I saw this kind of ice near waterfall, and I wonder why it looks like lily pad. Is there any name of this ice? I searched Internet with keywords "waterfall", "ice" but I cannot find this kinds of shape...

I've seen claims saying Euphrates will dry up in 2040,but I've seen the satellite history of the river and lakes in euphrates and it looks like they have been through moments of drought similar to now. So is it true that the claim of it drying in 2040 is actually false and is just a random guess?

A little over a year ago, NASA's OSIRIS-REx mission became the first U.S. spacecraft to deliver a sample of the asteroid Bennu back to Earth. Earlier this week, we announced the first major results from scientists around the world who have been investigating tiny fragments of that sample.

These grains of rock show that the building blocks of life and the conditions for making them existed on Bennu's parent body 4.5 billion years ago. They contain amino acids - the building blocks of proteins - as well as all five of the nucleobases that encode genetic information in DNA and RNA.

The samples also contain minerals called evaporites, which exist on Earth, too. Evaporites are evidence that the larger body Bennu was once part of had a wet, salty environment. On Earth, scientists believe conditions like this played a role in life developing. The sample from asteroid Bennu provides a glimpse into the beginnings of our solar system.

We're here on /r/askscience to talk about what we've learned. Ask us your questions about asteroid science, how NASA takes care of rocks from space, and what we can't wait to learn next.

We are:

• Harold Connolly - OSIRIS-REx Mission Sample Scientist, Rowan University and American Museum of Natural History (HC)
• Jason Dworkin - OSIRIS-REx Project Scientist, NASA's Goddard Space Flight Center (JD)
• Nicole Lunning - Lead OSIRIS-REx Sample Curator, NASA's Johnson Space Center (NL)
• Tim McCoy - Curator of Meteorites, Smithsonian's National Museum of Natural History (TM)
• Angel Mojarro - Organic Geochemist, NASA's Goddard Space Flight Center (AM)
• Molly Wasser - Media Lead, Planetary Science Division, NASA (MW)

We'll be here to answer your questions from 2:30 - 4 p.m. EST (1930-2100 UTC). Thanks!

Username: /u/nasa

PROOF: https://x.com/NASA/status/1885093765204824495

EDIT: That's it for us – thanks again to everyone for your fantastic questions! Keep an eye out for the latest updates on OSIRIS-REx—and other NASA missions—on our @NASASolarSystem Instagram account.

They do have some hair on their legs but not that much. If I did the same with greased thick socks, I am pretty sure I would get frostbite right? Are they able to maintain much better circulation then humans do? If so then they must be able to produce more body heat than humans right ?(relative to their body size).

For example if you break a leg,the damaged bone can heal itself. Why not teeth?

I apologize if this is the dumbest question ever asked but I was wondering how scientists discover fault lines. Are there new ones being made? And if so what kind of programs are researching that stuff? I've lived in the Boise/meridian area of Idaho my whole entire life and just recently when I moved 3 years ago I've been able to feel every small earthquake in my home. And they are REALLY small! My windows have cracked and my walls are pulling apart at the seams. I have the USGS app so I'm certain that it is earthquakes I'm feeling. My question is why? Is my house built somewhere it shouldn't be? Do home builders look into that stuff before they build or do they not care? I feel like I'm going a little crazy but I feel like something is off. I've never experienced this the whole time I've lived here

I saw this question as just a joke post but it left me thinking. I'll just ask it the same way the post said it: When someone with breasts implants dies, is there a point in the decomposition process where you'd see a skeleton with boobs?

Or to say it better, do the implants decay that much slower than flesh that they would stay there once only skeleton remains? And what happens with cremation? Is there any explosion risk with the implants?

Recently an asteroid was discovered with 1% chance of hitting Earth. Where does the variance come from: is it solar wind variance or is it our detection methods?

While in the womb, the fetus receives nutrients, oxygen and pretty much everything to keep it alive exclusively through the umbilical cord. This leads me to believe that there must be some major arteries or some other other important structure with direct and easy access to the body systems right there.

Nevertheless, I have never seen any medical procedure taking advantage or even involving the belly button at all (except for some surgeries, but I believe that's mostly for aesthetic reasons).

Is there any specific reason for this?

I put a bottle of mango bunderberg in the freezer for a few hours when I take it out and its cold but not frozen, but when I open it, it freezes as if the air froze it. Anyone know why? Keep in mind it was probably 30+ ish degrees celsius outside, not sure if thats useful information.

The numbers (in Joule or calories) written on each food pack. How do we measure the calories of a chocolate snack?

Anyone who knows anything about history knows that most modern horses are a far cry from what their wild ancestors used to be. But are their wild ancestors still around? Are there breeds that retain a lot of what the wild horses were, or are modern small ponies far removed from them?

Note: I was referred here from r/askhistorians where I originally asked the question.