#jupiter-c

[stone-cold-groove]

Scale model kit artwork for the Jupiter-C launch vehicle.

[aroaceleovaldez]

once again thinking about my au of Alabaster willingly getting possessed by Jason as a bargaining chip for Camp Jupiter/Olympus to try and get around his exile...

[pixieberry992]

jupiter sketch

[aspaceinthecosmos]

Happy International Women's Day!

Women are underrepresented in the fields of astronomy and physics. According to the International Astronomical Union (IAU), between 20-30% of astronomers are women. While many well-known astronomers are men, there have been numerous female astronomers in history who have made incredible discoveries, but who history has forgotten. Today we'll go over some of those women and their accomplishments.

Annie Jump Cannon (1863-1941)

Annie Jump Cannon is the woman responsible for our current stellar classification system, which organizes stars based on spectral types and temperature.

She worked at Harvard Observatory as a computer, working on the Henry Draper Catalogue, which attempted to map and classify all the stars in the sky. She was regarded as the best out of the computers, being able to accurately classify the stars incredibly quickly, up to three stars per minute.

Cannon's classification system (O, B, A, F, G, K, M) is still in use today, and separates stars into one of these spectral groups based on different characteristics of their absorption lines.

Henrietta Swan Leavitt (1868-1921)

Henrietta Leavitt is most well known for her discovery of the period-luminosity relationship of Cepheid variable stars.

Henrietta Leavitt was also a computer at Harvard Observatory in the late 1800s and early 1900s, working on cataloguing positions and luminosities of stars. In 1912, Edward Pickering published a paper with Leavitt's observations, which contained a relationship between the brightness of the Cepheid and the logarithm of the period of it.

This discovery, and the ensuing P-L relationship (sometimes known as Leavitt's Law), allowed astronomers to determine the distance to further objects. Because Cepheids are visible in nearby galaxies, astronomers were able to determine that these galaxies (or nebulae, as they were called then), were actually much further away than previously thought, leading to our current understanding of the universe and galaxies outside our own.

Cecilia Payne-Gaposchkin (1900-1979)

Cecilia Payne-Gaposchkin was the first astronomer to conclude that stars are primarily made of hydrogen and helium.

At the time her thesis was proposed in 1925, it was thought that the sun had a similar elemental composition as the Earth. Payne-Gaposchkin, however, had studied quantum physics, and recognized that the differences in absorption lines between different stars was due to ionization and temperature differences, not elemental differences, and that stars were primarily made of hydrogen and helium, with heavier elements making up less than two percent of stars' masses.

Her theory was met with resistance, and she even put a disclaimer in her thesis, saying the results were "almost certainly not real" in order to protect her career. She was, however, proven right within a few years, and her discovery shaped our knowledge of the composition of the universe.

Vera C. Rubin (1928-2016)

Vera Rubin is most well known for studying the rotation curves of galaxies, and finding a discrepancy that didn't align with the current understanding of physics. This discovery was used as evidence of dark matter, as proposed by Zwicky in the 1930s.

Rubin discovered that spiral galaxies didn't rotate as expected. When looking at our solar system, the outer planets orbit slower due to the inverse square nature of gravity. However, this decaying rotation curve wasn't what was found in spiral galaxies - rather, the outer edges of the galaxies were rotating at about the same speed as the inner areas.

According to Rubin's calculations, galaxies contained 5-10 times more mass than what was accounted for with visible matter. This supported the dark matter theory, and resulted in the current "anatomy" of galaxies, with the visible matter surrounded by a dark matter halo.

Jocelyn Bell (1943-present)

Jocelyn Bell discovered pulsars among a sea of data as a graduate student at Cambridge.

Pulsars (shortened from pulsating radio stars) are rapidly rotating neutron stars, which emit bursts of radiation at extremely short and consistent time intervals.

Bell discovered these, and published the findings in a paper with her thesis supervisor, Antony Hewish. in 1974, Hewish received the Nobel Prize in physics for this discovery, while Bell was omitted, due to her status as both a woman and a graduate student. In 2018, she was awarded the Breakthrough prize in Fundamental Physics for her discovery, and used the three million dollar reward to help minorities in physics.

[ask-dr-xeno]

This is why you can’t always trust AI. You need to develop your own critical thinking skills. Some of these answers are wrong- so wrong, in fact, that an elementary student could tell you why.

[prixoruno]

i caught up on solarballs and oh god oh fuck caelpiter is fucking doomed yaoi i didnt oh no oh fuck lemme sit down oh g

[x-heesy]

ᵂᴴᴱᴿᴱ ᴵˁ ʸᴬ ᴳ⁰ᴰ ᴺᴼᵂ????

Jupiter from the James Webb Space Telescope 🔭

𝙸 𝙵𝚎𝚎𝚕 𝚂𝚙𝚊𝚌𝚎 𝚋𝚢 𝙻𝚒𝚗𝚍𝚜𝚝𝚛ø𝚖 🎵

[cursedlegacies]

the gorgeous girlies of the green gals dorm // nymeria lee (@gcldensnitch), bryony rose, shreya battersea-parson (@endlessly-cursed), jupiter durand (@cursed-herbalist) have you ever seen four pretty roommates? now you have. they're judging you

yes hpma owns my ass right now, so ofc i ended up drawing bryony's dorm in game. b/c i can~ this was a bit of a mission b/c my art style is transitioning to a more over-painting style - one i've wanted for YEARS but could never figure out how to make it work, but things are finally falling into place with and I'm figuring it out this time??

w/e i'm taking the w and running with it. so yeah there's a lot about this that can be improved upon, but there's also A LOT that i'm super proud of with this.

[artemx746]

Honestly funny how in basically no Al ships does the person’s parent(s) like Al and will continue threatening or manipulating him

[aroaceleovaldez]

my brother suggested a meme for me

[that-dinopunk-guy]

I bought more paperbacks.

(Also I got the Peter F. Hamilton books entirely based on enjoying Pandora's Star like twenty years ago and completely managed to not realize there's another book between The Dreaming Void and The Evolutionary Void.)

[jupiter-descending]

the troat jupiter. think of the troat

the population…

[stuckasmain]

POV you’re Arthur c Clarke writing 2061

[arcimboldisworld]

Herbert Blomstedt: Mozart - Tonhalle Zürich 20.06.2024

Herbert Blomstedt: Mozart - Tonhalle Zürich 20.06.2024 #konzert #wolfgangamadeusmozart #jupiter #linzer #herbertblomstedt #tonhallezürich #music #review

[occatorcreator]

So it basically took till your adult life to fine out that a little round rock was your favorite underdog in the solar system?

lol yeah