relative abundance

Incoming! We’ve Got Science from Jupiter!

Our Juno spacecraft has just released some exciting new science from its first close flyby of Jupiter! 

In case you don’t know, the Juno spacecraft entered orbit around the gas giant on July 4, 2016…about a year ago. Since then, it has been collecting data and images from this unique vantage point.

Juno is in a polar orbit around Jupiter, which means that the majority of each orbit is spent well away from the gas giant. But once every 53 days its trajectory approaches Jupiter from above its north pole, where it begins a close two-hour transit flying north to south with its eight science instruments collecting data and its JunoCam camera snapping pictures.

Space Fact: The download of six megabytes of data collected during the two-hour transit can take one-and-a-half days!

Juno and her cloud-piercing science instruments are helping us get a better understanding of the processes happening on Jupiter. These new results portray the planet as a complex, gigantic, turbulent world that we still need to study and unravel its mysteries.

So what did this first science flyby tell us? Let’s break it down…

1. Tumultuous Cyclones

Juno’s imager, JunoCam, has showed us that both of Jupiter’s poles are covered in tumultuous cyclones and anticyclone storms, densely clustered and rubbing together. Some of these storms as large as Earth!

These storms are still puzzling. We’re still not exactly sure how they formed or how they interact with each other. Future close flybys will help us better understand these mysterious cyclones. 

Seen above, waves of clouds (at 37.8 degrees latitude) dominate this three-dimensional Jovian cloudscape. JunoCam obtained this enhanced-color picture on May 19, 2017, at 5:50 UTC from an altitude of 5,500 miles (8,900 kilometers). Details as small as 4 miles (6 kilometers) across can be identified in this image.

An even closer view of the same image shows small bright high clouds that are about 16 miles (25 kilometers) across and in some areas appear to form “squall lines” (a narrow band of high winds and storms associated with a cold front). On Jupiter, clouds this high are almost certainly comprised of water and/or ammonia ice.

2. Jupiter’s Atmosphere

Juno’s Microwave Radiometer is an instrument that samples the thermal microwave radiation from Jupiter’s atmosphere from the tops of the ammonia clouds to deep within its atmosphere.

Data from this instrument suggest that the ammonia is quite variable and continues to increase as far down as we can see with MWR, which is a few hundred kilometers. In the cut-out image below, orange signifies high ammonia abundance and blue signifies low ammonia abundance. Jupiter appears to have a band around its equator high in ammonia abundance, with a column shown in orange.

Why does this ammonia matter? Well, ammonia is a good tracer of other relatively rare gases and fluids in the atmosphere…like water. Understanding the relative abundances of these materials helps us have a better idea of how and when Jupiter formed in the early solar system.

This instrument has also given us more information about Jupiter’s iconic belts and zones. Data suggest that the belt near Jupiter’s equator penetrates all the way down, while the belts and zones at other latitudes seem to evolve to other structures.

3. Stronger-Than-Expected Magnetic Field

Prior to Juno, it was known that Jupiter had the most intense magnetic field in the solar system…but measurements from Juno’s magnetometer investigation (MAG) indicate that the gas giant’s magnetic field is even stronger than models expected, and more irregular in shape.

At 7.766 Gauss, it is about 10 times stronger than the strongest magnetic field found on Earth! What is Gauss? Magnetic field strengths are measured in units called Gauss or Teslas. A magnetic field with a strength of 10,000 Gauss also has a strength of 1 Tesla.  

Juno is giving us a unique view of the magnetic field close to Jupiter that we’ve never had before. For example, data from the spacecraft (displayed in the graphic above) suggests that the planet’s magnetic field is “lumpy”, meaning its stronger in some places and weaker in others. This uneven distribution suggests that the field might be generated by dynamo action (where the motion of electrically conducting fluid creates a self-sustaining magnetic field) closer to the surface, above the layer of metallic hydrogen. Juno’s orbital track is illustrated with the black curve. 

4. Sounds of Jupiter

Juno also observed plasma wave signals from Jupiter’s ionosphere. This movie shows results from Juno’s radio wave detector that were recorded while it passed close to Jupiter. Waves in the plasma (the charged gas) in the upper atmosphere of Jupiter have different frequencies that depend on the types of ions present, and their densities. 

Mapping out these ions in the jovian system helps us understand how the upper atmosphere works including the aurora. Beyond the visual representation of the data, the data have been made into sounds where the frequencies
and playback speed have been shifted to be audible to human ears.

5. Jovian “Southern Lights”

The complexity and richness of Jupiter’s “southern lights” (also known as auroras) are on display in this animation of false-color maps from our Juno spacecraft. Auroras result when energetic electrons from the magnetosphere crash into the molecular hydrogen in the Jovian upper atmosphere. The data for this animation were obtained by Juno’s Ultraviolet Spectrograph. 

During Juno’s next flyby on July 11, the spacecraft will fly directly over one of the most iconic features in the entire solar system – one that every school kid knows – Jupiter’s Great Red Spot! If anybody is going to get to the bottom of what is going on below those mammoth swirling crimson cloud tops, it’s Juno.

Stay updated on all things Juno and Jupiter by following along on social media:
Twitter | Facebook | YouTube | Tumblr

Learn more about the Juno spacecraft and its mission at Jupiter HERE.

Popularity of Thor Ragnarok characters; a super non-scientific data analysis of a Twitter thread

I was futzing around on Twitter, as you do, and stumbled upon the Thor Ragnarok page.  Their second tweet inquired “who’s your favorite character in Thor Ragnarok?”  I glanced at the responses and my eyes were immediately flooded with pictures of Loki.  Being the nerd that I am, I thought it might be interesting to record all the responses and determine the relative abundance, or % popularity, for each character mentioned.

The tweet had been live for 29 hours at the time of counting.  I only counted responses with a clear character preference; if the person listed two characters as their favorite I gave one point to each.  I did not count responses with 3 or more characters listed.  This is not by any stretch a properly designed poll, there are many confounding factors that I did not account for.  Now without further ado, the results!

Total votes: 205

1) Loki (82.4%)

2) Thor and Korg (5.4%) 

3) Hulk (2%)

Cosmic Rays: Space Messengers

We only know 4% of what the universe is made up of. Can we also know what lies beyond our galaxy … and if there are undiscovered forms of matter? Luckily, we have space messengers — cosmic rays — that bring us physical data from parts of the cosmos beyond our reach. 

Cosmic rays were first discovered in 1912 by Victor Hess when he set out to explore variations in the atmosphere’s level of radiation, which had been thought to emanate from the Earth’s crust. By taking measurements on board a flying balloon during an eclipse, Hess demonstrated both that the radiation actually increased at greater altitudes and that the sun could not be its source. The startling conclusion was that it wasn’t coming from anywhere within the Earth’s atmosphere but from outer space. Our universe is composed of many astronomical objects. Billions of stars of all sizes, black holes, active galactic nuclei, astroids, planets and more. 

During violent disturbances, such as a large star exploding into a supernova, billions of particles are emitted into space. Although they are called rays, cosmic rays consist of these high energy particles rather than the photons that make up light rays. What makes cosmic rays useful as messengers is that they carry the traces of their origins. By studying the frequency with which different particles occur, scientists are able to determine the relative abundance of elements, such as hydrogen and helium, within the universe. But cosmic rays may provide even more fascinating information about the fabric of the universe itself. 

An experiment called the Alpha Magnetic Spectrometer, A.M.S., has recently been installed on board the International Space Station, containing several detectors that can separately measure a cosmic ray particle’s velocity, trajectory, radiation, mass and energy, as well as whether the particle is matter or antimatter. While the two are normally indistinguishable, their opposite charges enable them to be detected with the help of a magnet. The Alpha Magnetic Spectrometer is currently measuring 50 million particles per day with information about each particle being sent in real time from the space station to the A.M.S. control room at CERN. Over the upcoming months and years, it’s expected to yield both amazing and useful information about antimatter, the possible existence of dark matter, and even possible ways to mitigate the effects of cosmic radiation on space travel.

As we stay tuned for new discoveries, look to the sky on a clear night, and you may see the International Space Station, where the Alpha Magnetic Spectrometer receives the tiny messengers that carry cosmic secrets.

From the TED-Ed Lesson How cosmic rays help us understand the universe - Veronica Bindi

Animation by TED-Ed / Jeremiah Dickey
A Little Tragedy - fireflysummers_ao3 - モブサイコ100 | Mob Psycho 100 [Archive of Our Own]
An Archive of Our Own, a project of the Organization for Transformative Works
By Organization for Transformative Works

Mob Psycho 100 Fanfiction

A Little Tragedy

Reigen Arataka is a well liked resident of the Falling Waters Care Facility.

But he’s getting real sick of it, so the old con artist tries talking his shrink into letting him out early on good behavior.

This…really isn’t a happy story. I think a lot about how, the most heartbreaking moments sometimes are the little tragedies, that seem almost mundane in the face of epic battles and whatnot.

Keep reading

Visionary Art by Luis Tamani

The Amazon river dolphin, also known as the pink river dolphin or boto, lives only in freshwater. It is found throughout much of the Amazon and Orinoco river basins in Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, and Venezuela. It is a relatively abundant freshwater cetacean with an estimated population in the tens of thousands. However, it is classified as vulnerable in certain areas due to dams that fragment and threaten certain populations, and from other threats such as contamination of rivers and lakes.

BROKE: nuclear power is a cheap and relatively clean and abundant source, safety concerns notwithstanding

WOKE: nuclear power is inherently bad

WIRED: nuclear power plants are consistently placed in unsafe areas and run recklessly due to govt contracting to the lowest bidder and corporate cronyism. they’re actually more expensive, as well as dangerous and damaging long-term to the environment than “unclean” sources like coal, which have environmental effects that are cheaply and easily mitigated

The Sexism of Arranged Marriage in Saudi

tl;dr: marriage in Saudi is a joke

    The extremity of sexism varies from region to region in Saudi. The most liberal area is the city of Jeddah, which is the largest and oldest metropolitan and port near Makkah, an ancient religious capitol. This means that for as long as people have visited Makkah, they have come through Jeddah and hence the diversity of thought is very much abundant relative to the rest of the country. The most conservative areas are the southern provinces. The neighbor of a rural friend of mine has children with his wife and yet has never seen her face because it’s considered unethical. It is, however, convenient for him not to ever be able to identify with her or even treat her as more than a vagina, of which he can get plenty. She wears a niqab all the time except around other women, her father, uncles, siblings, and, children.

    The fact that women must cover up is a- consciously because of the distrust toward Saudi young men as predators; b- subconsciously to repress female empowerment. The easy alternative is to keep women down as opposed to raising egalitarian boys who respect women. Of course this also means that there is a lot of hetero rape that goes unreported because a female’s worth is based on the exclusivity of her sexuality and nobody wants spoiled merchandise, not to mention the systematic bias against women that could potentially punish, not just blame, the victim and let the perpetrator off easy. Furthermore, the rate of homosexuality increases in more conservative areas, as does the inevitable bigotry toward it, due to the excessive repression of sexual frustration. A lot of the time this yields pedophilia, bestiality, and other forms of rape, which in turn, cements the homophobia harming the actual LGBT communities that exist.

    Until very recently, in Jeddah at least, the only legal outlet of this frustration was arranged marriage. People are now either becoming more open minded or are finding ways around it. In either case, as social media develops and connectivity explodes, there will be little to nothing that can be done to stop what the super conservative far right would call “corruption of youth.” They tend to forget why women would even put themselves in the position of passively getting married. Some common reasons girls go through with arranged marriage include but aren’t limited to:

1.       Leaving the abusive household they’re in

2.       Children to be collected as pets, or to live through, creating another abusive household

3.       Money

4.       Sex

5.       The vanity of a glamorous wedding, which itself is a massive industry (flowers, ceremony halls, cakes, food, and catering, media and invitation cards, and a myriad of other things) and is marketed out the wazoo

6.       Because they truly believe their worth depends on their value on the virgin market, and so the better the suitor, the more valuable the girl feels

7.       Family and social pressure

    None of these would justify marriage to even the most vein people in other countries, including many Muslim ones. There is a direct correlation between this and my thoughts from the rich person’s wedding. Very rarely do girls actually get married for love, not that they often ever get the chance to meet enough people to figure out what they’re into. It’s actually discouraged to even talk about intersexual friendships let alone have one. Most of the time, girls with dreams and aspirations end up settling for a nobody who only hinders them from obtaining their freedom. A common complaint about suitors is that they really just aren’t worth the time. Nevertheless, the bride now has to take care of this idiot while raising a couple of kids and totally giving up on the opportunities open to be wasted by and on men. A lot of women regret marriage, or at least marriage at a certain age. A lot of men regret the commitment as well, regardless of how much more freedom with less accountability toward the union they have than their wives.

The way a typical arranged marriages work is:

1.       A man grows up to the point of stagnation (has a job) while living with his parents

2.       A girl has passed the necessary education level or age for her parents to start considering moving her out because they don’t want to deal with protecting her or sustaining her and her lifestyle, or are afraid she could never bore them grandchildren because no one will marry her past a certain age, or are afraid that her prolonged spinsterhood is a result of her being “impure” (ie: she’s not a virgin)

3.       The man requests certain, often physical, characteristics and a woman in his family goes looking “Wife Hunting/Shopping”

4.       Women essentially market their virgin girls through gossip at social events

    Not very ironically, weddings are the most common of these events in which there are a lot of older matchmakers looking for beautiful women who match the requirements they’ve been given, or are just taking stock of the virgin girls available on the market. The average cost of an evening gown and the salon visit to prepare to go to someone else’s wedding is varies from 500 riyal to several thousands. This encourages extreme classism as the community around the couple’s family is often very large and still very tight. But even the weddings are segregated, on the women’s side it’s a beauty pageant and opportunity for the bride to wile out. On the men’s side it’s a business event and an opportunity for attendees to settle deals and disputes.

    The wedding night is when the newlyweds are to lose their virginity, which goes back to women being judged on their sexual exclusivity. If there is even a hint of the girl not being a virgin, such as a torn hymen, then there could be a lot of trouble. This is why hymen reconstruction is a common albeit underground procedure in most conservative places in the world. Her next expected role to play soon after the wedding is to bare children, specifically boys who take after their fathers name and inheritance by twice the share of the girl, or even the mother herself.

    A woman’s current functional role in life in Saudi is to produce more men. She is a commodity with her value depending on the men in her life. This is why men are super protective of their wives, they see them as property reflecting their own personal worth (trophy wives). Not very long ago there was a television ad campaign to end sexual harassment and cat calling. The slogan for it was, “What if she was your sister?” implying, would you let a man violate your sister? In other words, would you let someone damage your property? It’s the same as the house made of glass metaphor except women are not property. The intention of the ad was in the right place, however the execution of it only helped enforce the narrative that women are objects, even if now they’re worth protecting.

    Due to economic liquidity being an issue around the poverty line, women can now work. However in order for women to drive, there would need to be a massive overhaul of the infrastructure around the transportation industry (driving schools, traffic police, jails and judiciary, labor rights, the expat drivers community, to name a few). All of this can be easily taken care of if the society deemed it worth doing, but the biggest reason behind women not driving is conservative men afraid of their women having freedom of transportation. They’re afraid their wives would run away and talk about how bad they are in bed. Similar to the fear of a black revolt before the Emancipation Proclamation, men are afraid of women taking power and doing to men as has been done to them. The power struggle between men and women continues regardless of the decrees allowing women to vote in municipal elections or to participate as a third of the seats in parliament, in reality, the women appointed are practically “yes-men” and hold no real sway. Proof of this is in that the Women’s Rights council in Saudi is composed completely of fundamentalist men with no real sympathy toward the feminist cause. Masculinity here is very fragile and very threatened by feminism, which explains the levels of hostility.

    In addition to all of this, similar to the conservative parts of the US, this sexism is often reinforced by preferable interpretations of religion. Unfortunately, this indoctrination of ancient interpretations of an ancient, however solid, text goes beyond just empowering men over women, but is also used to subjugate women, the LGBT, and many another minority group. Because it is God’s word, it cannot be argued against and is often defended by the very people held down by these false, unnatural rules. Neither Mohammad, nor any of the other prophets have ever shown this much animosity toward women or the LGBT, and a handful of Quranic/Biblical verses and prophetic quotes taken out of context should not blind progressives. Just as Islam does not condone terrorism, nor does it condone sexism, let alone to this extent.


To be fair I also live for these moments, which are admittedly sparse but relatively more abundant (and mebbe more adorable because lookit that cuteness!).

Direct measurements for global temperature only date back to about 1850, so how do we figure out what past climates were like?

Once we move beyond the limits of direct measurements, we need to use proxies—preserved physical characteristics of past environments. Oxygen isotopes are the most commonly used paleoproxy to reconstruct long records of past climates.

Out of the three stable isotopes of oxygen, two are typically used in paleoclimate studies, 16O and  18O. The lighter 16O accounts for the vast majority of total oxygen—99.8% of it—while the heavier 18O accounts for most of the small remainder.

Water on Earth can therefore have H2O with a 16O or with an 18O. Due to the fact that 16O is lighter and has a lower bond energy, it will evaporate more readily than  18O. Similarly, because 18O is heavier and has a higher bond energy, it will preferentially remain in liquid form. This difference in mass and chemical properties leads to isotope fractionation—meaning that the relative abundance of 18O to 16O can change in a system. The degree of fractionation is temperature dependent, and cooler temperatures increase fractionation.

So how do we apply this isotopic fractionation to understanding past climates? Take an ocean with a set reservoir of 18O and 16O. Water with 16O will preferentially evaporate, which then condenses into cloud vapor. When these clouds produce rain, water with 18O will preferentially be rained out. As you remove this heavier 18O through precipitation, the resulting vapor and liquid will become lighter, meaning there is a higher relative abundance of 16O to 18O. Once these clouds reach the poles, the water will become locked in ice. The ice is thus enriched in 16O and is isotopically light. Conversely, the water in the oceans are now enriched in 18O and are isotopically heavy, because you preferentially removed 16O and locked it away in ice. Now, imagine if you have no ice sheets. Instead of the 16O becoming locked in ice, it will cycle back to the ocean so that your oceans are no longer isotopically heavy. Because the degree of fractionation is temperature dependent, this type of fractionation will be increased at colder temperatures. Oxygen isotopes will therefore be representative of both temperature and ice volume.

Scientists can take oxygen isotope measurements from ice cores or from deep sea sediment cores to reconstruct climate. If you measure heavy oxygen isotope values enriched in 18O in deep sea sediments (representative of ocean isotopic composition), that would be interpreted to indicate that the climate was cooler. Colder temperatures produce greater fractionation effects and you can also have water being trapped in polar ice. Ice cores from this same interval would show the opposite isotopic signal, because they are enriched in light 16O.

Conversely, deep sea sediments that are not enriched in 18O would indicate a warmer climate, because you have less fractionation and wouldn’t have lighter 16O  locked in polar ice. Oxygen isotope records from deep sea sediments have been used to reconstruct past climate over the Cenozoic (the last 65 million years). Isotope values show that climate overall has been cooling for the last 50 million years.

We live in an age of relative abundance, wherein we often find ourselves doing things “because we can”. We eat the entire portion, we maximize our earning and spending potential, we drink the free beer until we are sick, and the list goes on. We think it foolish not to act upon every opportunity. Discernment and moderation are key ingredients to wisdom and independent thinking, to identify that which is best from that which is possible.

Some of the rarer elements are generated in the supernova explosion itself. We have relatively abundant gold and uranium on Earth only because many supernova explosions had occurred just before the solar system formed. Other planetary systems may have somewhat different amounts of our rare elements. Are there planets where the inhabitants proudly display pendants of niobium and bracelets of protactinium, while gold is a laboratory curiosity? Would our lives be improved if gold and uranium were as obscure and unimportant on Earth as praseodymium?
—  Carl Sagan

Hired out by their owners to the Commissioners of the District of Columbia, slaves helped construct both the U.S. Capitol and the White House.

Constructing the new city required a great deal of labor. White laborers were in somewhat short supply, but enslaved Africans were relatively abundant. They served as bricklayers, quarry workers, sawyers, and more. The capital could not have been built without them.

The Capitol’s dome was adorned with the Statue of Freedom on December 2, 1863. Philip Reid, while enslaved, had devised the means by which the statue’s plaster mold could be cast in bronze. Reid gained his freedom through the District of Columbia Compensated Emancipation Act of April 1862.

Image: Voucher for a slave who worked on the White House, paid to James Claggett, the slave’s owner, 1794. National Archives, Records of the Accounting Officers of the Department of the Treasury

Learn more about the history of enslaved people in the United States:

Ferrari 458 Spider

Convertible, beautiful and ultimately, one beautiful car. Be it roof down or up, this vehicle would most certainly attract attention since it simply sounds like an F1 car with its balls dropped.Takes only 14 seconds for the roof to retract and cool your head off. Relatively abundant when it comes to luxury vehicles, but obviously, for a very good reason.


Bat Research Brings the #mypubliclandsroadtrip to #WomeninSTEM Wednesday

Today’s roadtrip continues in the Big Saline Bayou, Louisiana, for a behind-the-scenes with Alison McCartney. a BLM Southeastern States District Office employee whose specialty is bats.

“The BLM’s Southeastern States District Office is currently conducting acoustic surveys on BLM tracts in Alabama and Louisiana to determine bat species relative abundance and diversity.  We are using an Anabat SD2, which is a piece of equipment that records bat echolocation calls. Using specialized software, these calls can be analyzed to identify species. Our primary focus for the survey effort is to determine if there are any rare, threatened, or endangered bat species utilizing the tracts to better focus habitat management efforts to benefit these species, if present. 

We are also interested, however, in common species that might occur on the tracts. Bat relative abundance and diversity are considered an overall indicator of forest health. A higher abundance and species diversity of bats in an area represents a healthier more diverse forest.”

-By Alison McCartney

Ramble: Peridot

Arrives a month and a half late with a quick babble about the green alien, space Dorito. Why? Well, I’m hoping we might catch another glimpse of her in Marble Madness/tomorrow’s episode. But if not AH WELL.

Be warned, spoilers for Warp Tour and subsequent episodes follow. As well as simple speculation on my part/ this could all turn out to be crap ahah. 

But, I just wanted to post an observation. One I’m sure everyone else has already noticed concerning Peridot and her first and currently only scene.

Here she is. I thought her entry/ the build up was great by the way. You’re both excited and kinda terrified to see her. Excited because shes a new Gem, and terrified because at this point, it’s established pretty firmly that the Crystal Gems are not exactly friendly to ‘outsiders’ (and potentially vice versa as well).

BUT the something I’ve been wondering on in particular, is the little bit we see after Peridot notices and grabs the crying waffle (laughs) sticker:

We see a mix of concern, awareness and right at the very end….fear. 

I’m probably reading waay too much into it of course. But I find it very curious.

Shortly after being introduced, Peridot easily and without hesitation, crushes and destroys one of her damaged robonoids. You can read a lot from this, but the intent personally to me, seems to be to illustrate that, if you’re not deemed useful any longer, you are no longer required to exist. Or alternatively, you don’t matter anymore, and it’s easier to destroy you outright than fix you. 

In short, there’s little to no compassion in what Peridot does. And this seems to be an issue with ALL gems, homeworld and crystal alike. (Though this is a subject for another ramble…) 

Anyway, to my point. I find it interesting Peridot’s course of action after discovering something 'unforseen’ could be present in her mission.

Maintenance of the earth hub, but also…reactivate the Kindergarten.

The Kindergarten is established as being a place that makes Gems. At the very least, it would be probably be considered a highly valuable asset to Homeworld. 

But, rather than press on and complete her objective, reactivate this valuable asset. Peridot, upon seeing this strange sticker. Turns around and retreats.  

Why. Why would she do this?

Simplest answer: She’s alone, and doesn’t know what she’s potentially dealing with. She’d rather retreat unharmed and preserve herself. A smart choice.

This seems to show a couple of important facts about Homeworld Gems. (again, I’m probably reading way too hard but) 

What I gathered from this: 

Peridot and by extension Homeworld, do not have much knowledge of earth, and therefore humans. They do not know if they are a threat. Peridot appeared on her own (seemingly assuming there is nothing dangerous on earth) which, from a purely strategic standpoint isn’t “bad”: If something went wrong, she’d probably be the only casualty/ Homeworld loses one and not a lot of gems. 

But additionally Peridot found a completely harmless item, and it caused her to flee. If she had known it was harmless, if she had known that Gems can be considered physically superior to human beings, she probably would’ve continued onward without hesitation. But, she didn’t, again, she chose to preserve herself (and also take back information to benefit Homeworld).

Pausing briefly to pick at this; Again, Peridot was shown to dispatch one of her own robonoids, no questions asked, when seeing it damaged. She didn’t even consider fixing it. It makes me wonder, if this is the attitude of Homeworld towards damaged machines, what would their stance towards damaged/ injured gems be?

And what, would you say can be found in relative abundance on earth? 

“All those monsters we fight used to be just like us! Right, Pearl?”
“Yes. But they’ve become corrupted and broken. We have to take care of them, subdue them, contain them… It’s the best we can do for them, for now." 

-Amethyst & Pearl, Ocean Gem.

(Source of a potentially conflict?? WHO KNOWS)

Overall though, to me Peridot’s behavior shows that Homeworld exists for the preservation of gems (albeit with some underlying brutality)…and based on lines in a couple of episodes (Ocean Gem and On the Run in particular) ONLY the preservation of Gems. 

Compare to the Crystal Gems. They chose the earth, as stated by Pearl (again, On the Run along with other episodes) to protect and preserve the earth. Whether they are totally against their own kind isn’t exactly clear though, because they aren’t actively trying to attack Homeworld, only avoid it. Though that doesn’t mean they’re innocent. (Jumping to attacking and destroying things on a number of occasions, and trying to force Lapis to stay on Earth/prevent her leaving) 

So here we have a major conflict of interests…and you can’t really call either 'evil’. The way in which BOTH sides undertake their goals however, you could call bad, or at the very least, morally ambiguous. Which is something Rebecca Sugar is WELL KNOWN for writing into her characters and work. 

And it’s so, so GOOD. 

Aand wow I lost track a bit in this ramble aha whoops. But yeah, analyzing the fine details, and the fact there IS fine detail to analyse. Such a good show/ rewatchability is amazing.

But yeah, in short, I WANT TO SEE MORE OF PERIDOT/ I need to see her interacting with Steven and the Crystal Gems. I have a feeling her reaction to seeing them would be surprising… (or predictable perhaps…WE JUST DON’T KNOW)

Please let me know any thoughts of your own! I’d love to hear them : )