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Questions tagged [astrochemistry]

Chemistry occurring on asteroids, comets, in the interstellar medium or on other planets.

2
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1answer
66 views

Calculating volume of gases in different conditions

Doctor Who has a secret laboratory on Venus where atmospheric pressure is $92$ times that of Earth and room temperature is $\pu{735 K}$. There, Doctor Who mixes $\pu{4.00 g}$ of $\ce{CaCO3}$ with $\pu{...
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1answer
71 views

How does protium fusion produce helium? [closed]

In stellar nucleosynthesis, how is helium produced from a protium atom that has no neutrons?
6
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1answer
51 views

How can compounds be called reduced if nothing is known about the reaction they formed in?

I'm reading a research article about a model trying to explain the elemental compositions of meteorites.[1] What confuses me, are statements of the following type (here in chapter 2.1, second ...
-1
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1answer
52 views

Is it theoretically possible that some STABLE isotopes from periods 8-10 exist on some distant planet somewhere in the universe?

By stable I mean a half-life of thousands of years at the very least. We may never have enough resources to synthesize stable isotopes from those periods, but is it theoretically possible that ...
14
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2answers
565 views

Does gravity affect the rate of a chemical reaction?

For example, on planets with lower gravity, would the rate of reactions be lower because the reactants are slower to mix with one another?
1
vote
1answer
174 views

Is the surface of the planet Mercury made of copper minerals?

I have been looking at photographs of the planet Mercury, and I notices that in most of the pictures I have seen, the rocks on the surface seem to be covered in blue in green. From this, is it correct ...
1
vote
0answers
73 views

How uniform is the distribution of elements in the universe? [closed]

I was wondering about element distribution in the universe, specifically if any inconsistency in the relative distribution of elements would have any significant effects on the chemistry of a galaxy. ...
3
votes
2answers
155 views

Why is iodine the heaviest bonded element in circumstellar/interstellar space?

As I understand, the heaviest bonded element found in space to date is iodine, in the form of iodide in sodium iodide. This is the only element heavier than iron on this list, and that makes sense to ...
6
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2answers
119 views

Why is the discovery of chiral molecules in space a big accomplishment?

Today, I came across the discovery of a chiral pair of molecules in interstellar space. I know that a chiral molecule is a molecule that is not superimposable on its mirror image. But why is this ...
4
votes
1answer
500 views

Can we make glass by heating Martian Soil

I was puzzled by a very interesting question. Can we heat up Martian soil and produce glass just the way we do here on Earth? (the basic way) For info, Martian sand consists of the following - $\ce{...
16
votes
2answers
2k views

PV=nRT approximation on other planets?

In Chemistry class yesterday, I learned that real gases with low atomic masses behave like an ideal gas at high temperatures and low pressure. Since on earth at sea level the pressure is close to $1\ \...
10
votes
1answer
528 views

Why should space whisky taste different to Earth whisky?

I recently read an article about a vial of whisky being stored on the International Space Station for 3 years, and having its taste compared to a control sample stored on Earth. What could cause this ...
3
votes
2answers
271 views

Could we possibly discover new extraterrestrial elements and minerals?

So, after dissolving a good portion of my brain by watching a ton of sci-fi, I started thinking about all of the strange new materials that we will supposedly have in the future. For example, the ever-...
10
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1answer
345 views

What is the meaning of “superionic”?

I see the term "superionic" applied to high pressure water in articles like Giant planets may host superionic water, but I don't understand what the term really means. How is "superionic" ...
3
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2answers
1k views

Where did all the elements come from? [duplicate]

I heard somewhere (I think is was a show called "How The Universe Works") that the big bang was the result of a hydrogen atom and a helium atom. Is this true? If so, where did all the other elements ...
4
votes
1answer
114 views

How exactly are molecules detected in space?

Recently the sugar glycoaldehyde was detected in a star system 400 light years from Earth. How exactly are molecules detected in space? I am aware that spectroscopy is used to detect them, but I don't ...
4
votes
1answer
840 views

It is said that atoms cannot be created. If so, then how did atoms get created after the Big Bang? [closed]

I read somewhere that atoms cannot be created. If this is true, then how did the atoms form after the Big Bang? Also, does this mean that the number of atoms in our universe has remained the same ...
13
votes
3answers
810 views

Biological Consequences of Asteroid Mining—Death by Isotope?

It's been documented that NASA hope to capture an asteroid in 2025, and have subsequent aims to mine that asteroid. If if this is successful, we would expect other asteroids to be mined in the future. ...