#astrochemistry

[mindblowingscience]

Scientists have discovered a hitherto unknown space molecule while investigating a relatively nearby region of intense star birth, a cosmic spot about 5,550 light-years away. It's part of the Cat's Paw Nebula, also known as NGC 6334. The team, led by Zachary Fried, a graduate student at the Massachusetts Institute of Technology (MIT), examined a section of the nebula known as NGC 6334I with the  Atacama Large Millimeter/submillimeter Array (ALMA). This revealed the presence of a complex molecule known as 2-methoxyethanol, which had never been seen before in the natural world, though its properties had been simulated in labs on Earth. Discovering molecule 2-methoxyethanol was remarkable. It contains 13 atoms, which may not sound like a lot, but only six molecules have been discovered in space with an atom count beyond this. This molecule also represents the largest and most complex "methoxy" molecule found in space to date, referring to a chemical with a methyl group atom bound to an oxygen atom.

Continue Reading.

#Science #Chemistry #Astrochemistry #Astronomy #Space #Physics #stem

[teet-swea]

So people say no dumb questions but

Can things chemically react in a vacuum? Like on their own.

Ok so with my not so great understanding

Chemical Reactions require a “reactors” thing which actually starts to r process, and as I know that’s usually friction

But in a vacuum

There’s like

NOTHING

PERIOD

What’s gonna start a reaction other than human interference

Air friction? THERE IS NONE.

If they boop accidentally each other then ye but that’s like the smallest amount of friction ever

Only the most volatile thingamajiggs would blow up because that

Right???

This is actually a really good question, and one that’s had me pondering for most of today, especially because it pertains to my research field!

We’ll define the vacuum as you’ve said. Just an empty infinite void where we just plop down our particles, each of which is in its lowest possible energy state. We’ll also go so far as to say that the “activation energy,” which is the energy needed to make the reaction happen is greater than the energy our hypothetical reacting particles have.

Based on these assumptions, you would imagine that my answer is no, they cannot react, and according to classical physics, you would be right; however, in the realm of chemistry, classical physics doesn’t quite cut it.

We need quantum mechanics

You see, it turns out that sometimes even really big walls can’t stop really determined particles from sneaking through them anyway. As a matter of fact, the amount of energy you’d need to completely prevent a particle from bypassing your barrier is infinite; any finite energy will not prevent the extremely rare occasions where something just passes through. This phenomenon is known as quantum tunneling, and chemists looking carefully into the stars have found spectroscopic evidence that there are reactions actively happening in space as a result of this.

So not only do we have theoretical support for this process, we have evidence that it’s actively occurring as we speak in the depths of space.

If you have any questions or want to learn more about anything here or anywhere feel free to ask!

#chemistry #quantum #quantum physics #quantum mechanics #quantum chemistry #astrochemistry

[ranidspace]

list (para)phrased from wikipedia

answers are in the form [name], the study of (description)

sorry if i missed one. unless it's astr*logy then i dont care

#astronomy #cosmology #astrophysics #planetary science #astrobotany #astrochemistry #astrobiology #archeoastronomy #poll

[scientificinquirer-blog]

Biomolecules from formaldehyde on ancient Mars

Organic materials discovered on Mars may have originated from atmospheric formaldehyde, according to new research, marking a step forward in our understanding of the possibility of past life on the Red Planet. Scientists from Tohoku University have investigated whether the early atmospheric conditions on Mars had the potential to foster the formation of biomolecules – organic compounds essential…

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#Asia #astrochemistry #astronomy #mars

[er-cryptid]

Chemistry Notes (June-July 2023)

1-Chloro-2,3-Epoxypropane

Carbohydrates

Energy and Heat Capacity Calculations

Inner Transition Metal List

Mendelevium

Order of a Reaction Ex. 3

Satisfying Octet Rule Ex. 2

Strong Acids and Water Ex. 4

Sun Facts

Vapor Pressure and Intermolecular Forces Ex. 1

X-Rays and Crystal Structures

.

Patreon

#studyblr #notes #masterlist #studyblr masterlist #studying masterlist #study masterlist #chemistry #chemistry notes #chemistry masterlist #chem #gen chem #organic chemistry #organic chemistry masterlist #chemistry master list #organic chemistry master list #astronomy #astrophysics #astrochemistry #chemistry and physics #physics and chemistry #studyblr master list #studying master list #study master list #studying resources #studyblr resources #study resources #gen chem notes #orgo #ochem

[frank-olivier]

Lex Fridman

Sara Seager: Search for Planets and Life Outside Our Solar System (August 2020)

Katherine de Kleer: Planets, Moons, Asteroids & Life in Our Solar System (May 2021)

Clara Sousa-Silva: Searching for Signs of Life on Venus and Other Planets (June 2021)

Ariel Ekblaw: Space Colonization and Self-Assembling Space Megastructures (March 2022)

Anna Frebel: Origin and Evolution of the Universe, Galaxies, and Stars (May 2023)

Lisa Randall: Dark Matter, Theoretical Physics, and Extinction Events (December 2023)

Saturday, July 22, 2023

#exoplanets #astrochemistry #space exploration #talk #Youtube #planetary science #astronomy #astrophysics #theoretical physics

[venusianwonders]

Atmospheric chemists from the University of Pennsylvania analyze sulfur in the Venusian atmosphere

#venus #University of Pennsylvania #upenn #atmospheric chemistry #planet venus #astrochemistry #chemistry #atmospheric science #venusian #planets #planetary atmosphere #sulfur #atmosphere #clouds #space science #science #u penn #pennsylvania #chemist #venusian chemistry

[spacetimewithstuartgary]

Scientists discover new 'origins of life' chemical reactions Four billion years ago, the Earth looked very different than it does today, devoid of life and covered by a vast ocean. Over the course of millions of years, in that primordial soup, life emerged. Researchers have long theorized how molecules came together to spark this transition. Now, scientists at Scripps Research have discovered a new set of chemical reactions that use cyanide, ammonia and carbon dioxide—all thought to be common on the early earth—to generate amino acids and nucleic acids, the building blocks of proteins and DNA. "We've come up with a new paradigm to explain this shift from prebiotic to biotic chemistry," says Ramanarayanan Krishnamurthy, Ph.D., an associate professor of chemistry at Scripps Research, and lead author of the new paper, published July 28, 2022 in the journal Nature Chemistry. "We think the kind of reactions we've described are probably what could have happened on early earth." In addition to giving researchers insight into the chemistry of the early earth, the newly discovered chemical reactions are also useful in certain manufacturing processes, such as the generation of custom labeled biomolecules from inexpensive starting materials. Earlier this year, Krishnamurthy's group showed how cyanide can enable the chemical reactions that turn prebiotic molecules and water into basic organic compounds required for life. Unlike previously proposed reactions, this one worked at room temperature and in a wide pH range. The researchers wondered whether, under the same conditions, there was a way to generate amino acids, more complex molecules that compose proteins in all known living cells. In cells today, amino acids are generated from precursors called α-keto acids using both nitrogen and specialized proteins called enzymes. Researchers have found evidence that α-keto acids likely existed early in Earth's history. However, many have hypothesized that before the advent of cellular life, amino acids must have been generated from completely different precursors, aldehydes, rather than α-keto acids, since enzymes to carry out the conversion did not yet exist. But that idea has led to debate about how and when the switch occurred from aldehydes to α-keto acids as the key ingredient for making amino acids. After their success using cyanide to drive other chemical reactions, Krishnamurthy and his colleagues suspected that cyanide, even without enzymes, might also help turn α-keto acids into amino acids. Because they knew nitrogen would be required in some form, they added ammonia—a form of nitrogen that would have been present on the early earth. Then, through trial and error, they discovered a third key ingredient: carbon dioxide. With this mixture, they quickly started seeing amino acids form. "We were expecting it to be quite difficult to figure this out, and it turned out to be even simpler than we had imagined," says Krishnamurthy. "If you mix only the keto acid, cyanide and ammonia, it just sits there. As soon as you add carbon dioxide, even trace amounts, the reaction picks up speed." Because the new reaction is relatively similar to what occurs today inside cells—except for being driven by cyanide instead of a protein—it seems more likely to be the source of early life, rather than drastically different reactions, the researchers say. The research also helps bring together two sides of a long-standing debate about the importance of carbon dioxide to early life, concluding that carbon dioxide was key, but only in combination with other molecules. In the process of studying their chemical soup, Krishnamurthy's group discovered that a byproduct of the same reaction is orotate, a precursor to nucleotides that make up DNA and RNA. This suggests that the same primordial soup, under the right conditions, could have given rise to a large number of the molecules that are required for the key elements of life. "What we want to do next is continue probing what kind of chemistry can emerge from this mixture," says Krishnamurthy. "Can amino acids start forming small proteins? Could one of those proteins come back and begin to act as an enzyme to make more of these amino acids?" In addition to Krishnamurthy, authors of the study, "Prebiotic Synthesis of α-Amino Acids and Orotate from α-Ketoacids Potentiates Transition to Extant Metabolic Pathways," are Sunil Pulletikurti, Mahipal Yadav and Greg Springsteen.

#space #science #Astronomy #astrobiology #astrochemistry #news #biochemical

[bowlerhatscience]

What Is Life?

I've republished my 2015 feature article for the now-defunct magazine Mosaic. Would we recognize life if we found it on other worlds? I went to western Canada to find out

If we met new life – on this planet or the next – would we know it when we saw it? [This piece originally ran in Mosaic Science on October 20, 2015, but the publisher decided to remove all of the magazine’s archives from the web. This is the complete text as published — including British spelling — using my photographs instead of the original illustrations.] “Why would NASA want to study a lake…

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#astrobiology #astrochemistry #biochemistry #DNA #exoplanets #extremophiles #Mars #microbialites #stromatolites #XNA

[scienceboi]

I make silly little science posts to numb the frustration that my college is sucking my soul with 3 semesters of ochem when I want to study inorganic astrochemistry.

#every day I wonder why I am still here #I'm so tired and need enrichment in my enclosure #vent #tw vent #science #stem #college #chemistry #organic chemistry #inorganic chemistry #astrochemistry

[phenos-paradox]

The real alien news. JWST saw signatures of an atmosphone composition that, if confirmed correct, could maybe indicate the presence of life. However, it is a planet 8 times the size of Earth and eo has an incredibly thick atmosphere and thus it could just be exotic chemistry. They have found a planet in the habitable zone of a red giant star with CO2 and Dimethyl Sulfide, which are possible biosignatures.

Basically, if there are little microbes there, this is what the atmosphere could look like but we can't really rule out non-biological explanations just yet, even if the data is not a mistake.

One of my favourite articles on the topic is one by Carl Sagan called "Is there life on Earth?" which tries to iimagine a Species on Mars looking at Earth to determine if it has life. The tech has changed but fundamentally it is what we still try to do.

#physics #astronomy #jwst #aliens #chemistry #astrobiology #astrochemistry #science #Youtube

[scientificinquirer-blog]

DAILY DOSE: Saudi universities exposed for paying-off top scientists to steal some shine; Endangered Sumatran rhino born in captivity.

STEM CELL THERAPY FOR MS. A recent early-stage trial has shown promising results for a new stem cell therapy for multiple sclerosis (MS). In this trial, neural stem cells were injected into the brains of 15 patients with secondary progressive MS, a more advanced stage of the disease where few treatments are effective. The primary aim was to assess safety, and the results were encouraging,…

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#Africa #Asia #astrobiology #astrochemistry #astronomy #Australia #Biotechnology #conservation #endangered species #Europe #evolution #Featured #multiple sclerosis #North America #politics #pollution #society #South America #stem cell therapy #technology

[eeruq4y1h9zuxj]

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#SST #sky-scaling #antically #orientational #ectocarpaceous #twinge #microspace #in-co-ordination #影山優佳 #astrochemistry #skilless #Sp. #uniradiate #xiaoting #divagate #Cladodontidae #pill-gilding #Lophophora #trabeated #gamers

[mattietragik]

Loving this new shape I shaved my brow into! 🥰 A few years ago, I really started to limit my style to fit into what a chemist "should" look like, but there's absolutely no requirement! ❤ Incredibly successful people have colored hair, peircings, tattoos, and unique looks. If you've been thinking about trying something new, here's your sign! ❣️ Only through proving them wrong do we change the stigma! 😘 #mentalhealth #coloredhair #chemist #girlswithtattoos #loveyourself #piercings #mentalhealthhumor #ocdawareness #astrochemistry #anxietysupport #depressionsupport https://www.instagram.com/p/Ci8X7dwP858/?igshid=NGJjMDIxMWI=

#mentalhealth #coloredhair #chemist #girlswithtattoos #loveyourself #piercings #mentalhealthhumor #ocdawareness #astrochemistry #anxietysupport #depressionsupport

[climbing-starrs]

Irisona ship name ideas: Orion x Bab- Obabon. That's all I got. Tae x Bab- Babble Tea. Jasmine x Bab- Babmine. Or Jab. Or Monster Fuckers. I'm not very good at coming up with ship names

OH IM OBSESSED WITH BABBLE TEA thats so fucking cute omg

also obabon SOB

#monster fuckers seem PERFECT for bab x jasmine too ngl #SFKJDSFS #i was thinking smth like astrochemistry for orion and bab #or astrobiology or smth #something to do with both space and biological shit idk SKDJFS #answered asks #glass-trash-bab

[beckettmariner]

me: i think im gonna take it lighty this week

my professor, at 8.44pm:

#pleas sir #cut me som slac #gib me break #little astrochemistry things #you can litcherally see the 'hi francisca' on the top of the email