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The Australopithecines, the relatively small-brained, bipedal ancestors of our genus that lived in Africa somewhere between 1 million and 4 million years ago, probably threw projectiles as well, since their hand bones hint at their ability to grip objects and throw them.

Once the ability to throw quickly and accurately became critical to success in combat and hunting, our male ancestors would have been more likely than females to develop, through natural selection, these skills, since anthropologists have shown that males tended to fight and hunt big game.

Sex differences in throwing do not exist just because males are, on average, larger and stronger. The relative size, shape and orientation of the shoulders of men increase the range of motion of the arm during the cocking phase, which facilitates better throwing.

the devaluation of animals and disconnection of us from them reflect a deeper devaluation of the material universe in general

In this scheme of things, we owe nature nothing; it is to yield us everything. This is the ideology of species annihilation and environmental destruction, and also of technological development.

Further trouble is caused when the distinctions between humans and animals are then used to draw distinctions among human beings

Some of us, in short, are animals — and some of us are better than that. This, it turns out, is a useful justification for colonialism, slavery and racism.

The classical source for this distinction is certainly Aristotle. In the “Politics,” he writes, “Where then there is such a difference as that between soul and body, or between men and animals (as in the case of those whose business is to use their body, and who can do nothing better), the lower sort are by nature slaves.

Every human hierarchy, insofar as it can be justified philosophically, is treated by Aristotle by analogy to the relation of people to animals.

One difficult thing to face about our animality is that it entails our deaths; being an animal is associated throughout philosophy with dying purposelessly, and so with living meaninglessly.

this line of thought also happens to justify colonizing or even extirpating the “savage,” the beast in human form.

Our supposed fundamental distinction from “beasts, “brutes” and “savages” is used to divide us from nature, from one another and, finally, from ourselves

In Plato’s “Republic,” Socrates divides the human soul into two parts. The soul of the thirsty person, he says, “wishes for nothing else than to drink.” But we can restrain ourselves. “That which inhibits such actions,” he concludes, “arises from the calculations of reason.” When we restrain or control ourselves, Plato argues, a rational being restrains an animal.

In this view, each of us is both a beast and a person — and the point of human life is to constrain our desires with rationality and purify ourselves of animality

These sorts of systematic self-divisions come to be refigured in Cartesian dualism, which separates the mind from the body, or in Sigmund Freud’s distinction between id and ego, or in the neurological contrast between the functions of the amygdala and the prefrontal cortex.

I don’t know how to refute it, exactly, except to say that I don’t feel myself to be a logic program running on an animal body; I’d like to consider myself a lot more integrated than that.

And I’d like to repudiate every political and environmental conclusion ever drawn by our supposed transcendence of the order of nature

There is no doubt that human beings are distinct from other animals, though not necessarily more distinct than other animals are from one another. But maybe we’ve been too focused on the differences for too long. Maybe we should emphasize what all us animals have in common.

“In addition to capturing everyone’s shopping habits (from amazon.com) and their internet activity (as AWS is one of the most dominant web hosting services) … now they are also effectively becoming a global ISP with a flick of a switch, all without even having to lay a single foot of fiber”

Amazon is not the first company to look to create such a network. Apple has taken a similar approach with the company’s range of AirTag item trackers, which can connect to the internet through any compatible iPhone they come into contact with, not simply their owner’s.

The quality of mathematics research in the United States today is the envy of the scientific world. This is a direct result of the openness and inclusivity of the profession.

Can Americans maintain this unmatched excellence in the future? There are worrisome signs that suggest not.

The Organization for Economic Cooperation and Development compares mathematical proficiency among 15-year-olds by country worldwide. According to its 2018 report, America ranked 37th while China, America’s main competitor for world leadership, came in first.

This is despite the fact that the United States is the fifth-highest spender per pupil among the 37 developed OECD nations

This massive failure of our K-12 education system trickles through the STEM pipeline.

At the undergraduate level, too few American students are prepared for higher-level mathematics courses. These students are then unprepared for rigorous graduate-level work

According to our own experiences at the universities where we teach, an overwhelming majority of American students with strong math backgrounds are either foreign-born or first-generation students who have additional support from their education-conscious families. At all levels, STEM disciplines are more and more dependent on a constant flow of foreign talent.

There are many reasons for this failure, but the way that we educate and prepare teachers is particularly influential. The vast majority of K-12 math teachers are graduates of teacher-preparation programs that teach very little substantive mathematics

This has led to a constant stream of ill-advised and dumbed-down reforms. One of the latest fads is anti-racist mathematics. Promoted in several states, the bizarre doctrine threatens to further degrade the teaching of mathematics.

Another major concern is the twisted interpretation of diversity, equity, and inclusion (DEI).

Under the banner of DEI, universities are abandoning the use of standardized tests like the SAT and GRE in admissions, and cities are considering scrapping academic tracking and various gifted programs in schools, which they deem “inequitable.”

such programs are particularly effective, when properly implemented, at discovering and encouraging talented children from disadvantaged backgrounds.

The new 2021 Mathematics Framework, currently under consideration by California’s Department of Education, does away “with all tracking, acceleration, gifted programs, or any instruction that involves clustering by individual differences, without expressing any awareness of the impact these drastic alterations would have in preparing STEM-ready candidates.”

These measures will not only hinder the progress of the generations of our future STEM workforce but also contribute to structural inequalities, as they are uniquely detrimental to students whose parents cannot send them to private schools or effective enrichment programs.

These are just a few examples of an unprecedented fervor for revolutionary change in the name of Critical Race Theory (CRT), a doctrine that views the world as a fierce battleground for the narratives of various identity groups.

This will only lead to a further widening of racial disparities in educational outcomes while lowering American children’s rankings in education internationally.

Ill-conceived DEI policies, often informed by CRT, and the declining standards of K-12 math education feed each other in a vicious circle

Regarding minorities, in particular, public K-12 education all too often produces students unprepared to compete, thus leading to large disparities in admissions at universities, graduate programs, and faculty positions. This disparity is then condemned as a manifestation of structural racism, resulting in administrative measures to lower the evaluation criteria. Lowering standards at all levels leads eventually to even worse outcomes and larger disparities, and so on in a downward spiral.

A case in point is the recent report by the American Mathematical Society that accuses the entire mathematics community, with the thinnest of specific evidence, of systemic racial discrimination. A major justification put forward for such a grave accusation is the lack of sufficient representation of Black mathematicians in the professio

the report, while raising awareness of several ugly facts from the long-ago past, makes little effort to address the real reasons for this, mainly the catastrophic failure of the K-12 mathematical educational system.

The National Science Foundation, a federal institution meant to support fundamental research, is now diverting some of its limited funding to various DEI initiatives of questionable benefit.

Meanwhile, other countries, especially China, are doing precisely the opposite, following the model of our past dedication to objective measures of excellence. How long before we will see a reverse exodus, away from the United States?

The present crisis can still be reversed by focusing on a few concrete actions:

Improve schools in urban areas and inner-city neighborhoods by following the most promising education programs. These programs demonstrate that inner-city children benefit if they are challenged by high standards and a nurturing environment.

Follow the lead of other highly successful rigorous programs such as BASIS schools and Math for America, which focus on rigorous STEM curricula, combined with 21st-century teaching methods, and recruit talented teachers to help them build on their STEM knowledge and teaching methods.

Increase, rather than eliminate, tailored instruction, both for accelerated and remedial math courses.

Reject the soft bigotry of low expectations, that Black children cannot do well in competitive mathematics programs and need dumbed-down ethnocentric versions of mathematics.

Uphold the objective selection process based on merit at all levels of education and research.

NewCo will emulate the founders of The Atlantic. At some point "independent from" turned into "objective about." That was the wrong turn, made long ago, by professional journalism, American-style.

You've written that The View From Nowhere is, in part, a defense mechanism against charges of bias originating in partisan politics. If you won't be invoking it, what will your defense be when those charges happen? There are two answers to that. 1) We told you where we're coming from. 2) High standards of verification. You need both.

What about ideological diversity? The View from Somewhere obviously permits it. You've said you'll have it. Is that because it is valuable in itself?

The basic insight is correct: Since "news judgment" is judgment, the product is improved when there are multiple perspectives at the table ... But, if the people who are recruited to the newsroom because they add perspectives that might otherwise be overlooked are also taught that they should leave their politics at the door, or think like professional journalists rather than representatives or their community, or privilege something called "news values" over the priorities they had when they decided to become journalists, then these people are being given a fatally mixed message, if you see what I mean. They are valued for the perspective they bring, and then told that they should transcend that perspective.

When people talk about objectivity in journalism they have many different things in mind. Some of these I have no quarrel with. You could even say I’m a “fan.” For example, if objectivity means trying to ground truth claims in verifiable facts, I am definitely for that. If it means there’s a “hard” reality out there that exists beyond any of our descriptions of it, sign me up. If objectivity is the requirement to acknowledge what is, regardless of whether we want it to be that way, then I want journalists who can be objective in that sense. Don’t you? If it means trying to see things in that fuller perspective Thomas Nagel talked about–pulling the camera back, revealing our previous position as only one of many–I second the motion. If it means the struggle to get beyond the limited perspective that our experience and upbringing afford us… yeah, we need more of that, not less. I think there is value in acts of description that do not attempt to say whether the thing described is good or bad. Is that objectivity? If so, I’m all for it, and I do that myself sometimes. 

By "we can do better than that" I mean: We can insist on the struggle to tell it like it is without also insisting on the View from Nowhere. The two are not connected. It was a mistake to think that they necessarily are. But why was this mistake made? To control people in the newsroom from "above." That's a big part of objectivity. Not truth. Control.

If it works out as you hope, if things are implemented well, etc., what's the potential payoff for readers? I think it's three things: First, this is a news site that is born into the digital world, but doesn't have to return profits to investors. That's not totally unique

Second: It's going to be a technology company as much as a news organization. That should result in better service.

a good formula for innovation is to start with something people want to do and eliminate some of the steps required to do it

The third upside is news with a human voice restored to it. This is the great lesson that blogging gives to journalism

To an Old English speaker, the word that later became like was the word for, of all things, “body.”

The word was lic, and lic was part of a word, gelic, that meant “with the body,” as in “with the body of,” which was a way of saying “similar to”—as in like

It was just that, step by step, the syllable lic, which to an Old English speaker meant “body,” came to mean, when uttered by people centuries later, “similar to”—and life went on.

Like has become a piece of grammar: It is the source of the suffix -ly.

Like has become a part of compounds. Likewise began as like plus a word, wise, which was different from the one meaning “smart when either a child or getting old.”

Dictionaries tell us it’s pronounced “like-MINE-did,” but I, for one, say “LIKE- minded” and have heard many others do so

Therefore, like is ever so much more than some isolated thing clinically described in a dictionary with a definition like “(preposition) ‘having the same characteristics or qualities as; similar to.’”

What we are seeing in like’s transformations today are just the latest chapters in a story that began with an ancient word that was supposed to mean “body.”

It’s under this view of language—as something becoming rather than being, a film rather than a photo, in motion rather than at rest—that we should consider the way young people use (drum roll, please) like

The new like, then, is associated with hesitation.

So today’s like did not spring mysteriously from a crowd on the margins of unusual mind-set and then somehow jump the rails from them into the general population.

The problem with the hesitation analysis is that this was a thoroughly confident speaker.

It’s real-life usage of this kind—to linguists it is data, just like climate patterns are to meteorologists—that suggests that the idea of like as the linguistic equivalent to slumped shoulders is off.

Understandably so, of course—the meaning of like suggests that people are claiming that everything is “like” itself rather than itself.

The new like acknowledges unspoken objection while underlining one’s own point (the factuality). Like grandparents translates here as “There were, despite what you might think, actually grandparents.”

Then there is a second new like, which is closer to what people tend to think of all its new uses: it is indeed a hedge.

Then, the two likes I have mentioned must be distinguished from yet a third usage, the quotative like—as in “And she was like, ‘I didn’t even invite him.’

This is yet another way that like has become grammar. The meaning “similar to” is as natural a source here as it was for -ly: mimicking people’s utterances is talking similarly to, as in “like,” them.

Thus the modern American English speaker has mastered not just two, but actually three different new usages of like.

In 1609, Kepler published a book containing the first two laws. The book also revealed his new model of the solar system, which was against what most scientists back then believed.

He stated that planets moved in elliptical orbits through the solar system, with the Sun located at one focus of the ellipse. Before Kepler, they believed that all orbits in the solar system were perfectly circular.

About ten years later, Kepler added his third law: that square of the orbital period divided by the cube of orbit’s semi-major axis is the same for all planets. Although not immediately accepted, his three laws took science to the next level. Why was he initially not appreciated?

Kepler applied this to the planets and stated that the solar system was built upon geometrical objects called Platonic solids that are a specific type of three-dimensional shape. They have identical sides or surfaces, edges of equal length, and angles of equal extent.

The model Kepler presented was based on a sequence of six spheres and the five Platonic solids, each located between two spheres. Back then, only six planets were discovered as Uranus and Neptune’s discovery took until the 18th and 19th centuries. Thus, each sphere represented one planet.

nitially, it seemed to explain the approximate ratios of the orbits of the six planets. It also gave a reason why there are only six planets—because there are only five Platonic shapes, each of which needs to fit between the orbit of two planets, only once

Kepler published this theory in detail, in his book Mysterium Cosmographicum. Despite all the value he gave to this theory, we now know how wrong it was.

Kepler cherished the theory as his most significant work, long after he had discovered the three laws.

However, the number of planets in the solar system or any other system in the universe is not predictable. Many of the numbers appearing everywhere are out of a mere accident, just like the number of planets.

Kepler thought his greatest achievement was the wrong solar system he drew, but it was the three laws that were so right to survive to date.

There’s no evidence to suggest the fruit actually landed on his head, but Newton’s observation caused him to ponder why apples always fall straight to the ground (rather than sideways or upward) and helped inspired him to eventually develop his law of universal gravitation

In 1687, Newton first published this principle, which states that every body in the universe is attracted to every other body with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them, in his landmark work the “Principia,” which also features his three laws of motion.

In 1726, Newton shared the apple anecdote with William Stukeley, who included it in a biography, “Memoirs of Sir Isaac Newton’s Life,” published in 1752.

His famous apple tree continues to grow at Woolsthorpe Manor.

There were many new phenomena that were discovered and that came to be understood in the centuries that followed Newton’s era. Take electricity and magnetism, for example. Until the 19th century, we didn’t really know what electricity or magnetism were, or how they worked. Isaac Newton certainly didn’t have a clue.

To many physicists around the turn of the 20th century, the state of physics seemed very settled. The Newtonian worldview had been very successful, and for a very long time.

In 1905, however, a revolution in physics did come. And perhaps even more surprising than the revolution itself was where that revolution came from. In 1905, Albert Einstein was not working as a professor at some prestigious university. He was not famous, or even well-known among other physicists.

Things didn’t stay this way for long, however. In 1905, Einstein wrote not one or two, but four absolutely groundbreaking papers. Any one of these four papers would have made him a star within the field of physics, and would have certainly secured him a position of prominence in the history of science.

It seems that having so many breakthroughs of this magnitude in such a short period of time had never happened before, and has never happened since. In the first of Einstein’s 1905 papers, he proposed that light doesn’t only behave like a wave, but that it is also made up of individual pieces or particles.

But Einstein’s paper provided concrete empirical evidence that atoms were, in fact, real and tangible objects. He was even able to use these arguments to make a pretty good estimate for the size and mass of atoms and molecules. It was a huge step forward.

The equations that physicists use to describe the propagation of light waves—what are known as Maxwell’s equations—predict that light should move through space at a speed of about 670 million miles per hour. And more interestingly, these equations don’t make any reference to any medium that the light waves propagate through.

Although no experiment had ever detected this aether, they argued that it must fill virtually all of space. After all, they argued, the light from a distant star could only reach us if there was a continuous path filled with aether, extending all the way from the star to us.

ventually, though, physicists discovered that there was no aether. It would be Einstein who would come up with an equation to explain this conundrum.

They were stunning results, but no one knew why they would be true. Aristotle’s circular orbits had a philosophical basis—the perfection of the aether from which everything out there was made.

The basic concepts which ordered the universe and the picture of reality they gave rise to had become wobbly, but had not fallen.

So, the first law describes the behavior of an object subjected to no external force. The second law then describes the behavior of an object that is subjected to an external force.

And so Newton’s success supercharged an intellectual movement developing around him, the Enlightenment. The picture of reality that emerged from the Enlightenment is one in which the universe is well-ordered according to principles that are accessible to the human mind.

Again, if a person is on ice skates and someone pushes them, they accelerate forward because of the force and the other person goes backwards because of it. To every action there is always an equal, but opposite reaction.

When these three laws of mechanics and the law of universal gravitation are used together, we suddenly have an explanation for Kepler’s elliptical orbits. Not only that, we can explain the tides, the motion of cannonballs, virtually everything we see in the world around us.

When these three laws of mechanics and the law of universal gravitation are used together, it was not only successful in terms of explaining and predicting, but, theoretically, it also undermined the old foundation—Aristotle.

Newton’s law of universal gravitation is universal. It applies to everything equally. Aristotle’s worldview was enforced by the centralized power of the Catholic Church. Newton’s worldview came not from authority, but from observing, something anyone could do.

The bigger the push, the more the change; the heavier the object, the less the change. An object is either subject to a force or it isn’t, so the first two laws are sufficient to describe the behavior of the object.

We live in a world that we can understand. Humans are perfectly rational beings, made to understand the world we inhabit.

Without conscious knowledge of why we’re choosing as we’re choosing, the argument follows, we cannot claim to be exercising “free” will.

If free will is drained of its power by scientific determinism, free-will supporters argue, then we’re moving down a dangerous path where people can’t be held accountable for their decisions, since those decisions are triggered by neural activity occurring outside of conscious awareness.

investigating whether our subjective experience of free will is threatened by the possibility of “neuroprediction” – the idea that tracking brain activity can predict decisions.

The students were then given an article to read about a woman named Jill who tested wearing the cap for a month, during which time neuroscientists were able to predict all of her decisions, including which candidates she’d vote for. The technology and Jill were made up for the study.The students were asked whether they thought this technology was plausible and whether they felt that it undermines free will. Eighty percent responded that it is plausible, but most did not believe it threatened free will unless the technology went beyond prediction and veered into manipulation of decisions.

Our subjective understanding about how we process information to arrive at a decision isn’t just a theoretical exercise; what we think about it matters.

Alexa and Her CounterpartsAlexa, Amazon’s intelligent assistant that listens to your voice commands to play music, order diapers and place a phone call, will be everywhere at CES.

Smart CitiesNowadays, it’s easy to shop for high-quality internet-connected home accessories, like light bulbs, thermostats and security cameras. At CES, Samsung is even planning to introduce a smart refrigerator at the electronics show that can listen to voice commands to control other home accessories.

Smarter CarsSelf-driving-car enthusiasts like Elon Musk, the chief executive of Tesla, dream of a future where driverless cars eliminate traffic accidents while letting people do work on their commutes.They can keep dreaming: Autonomous vehicles still have a long way to go before they become safe and properly regulated.

Next-Generation Wireless TechnologyAs a growing number of devices rely on artificial intelligence, they will require faster bandwidth speeds. At CES, wireless companies like AT&T and Verizon are expected to give progress reports on so-called 5G, the fifth-generation network technology.With 5G, wireless carriers envision an era of incredibly fast speeds that let smartphone users download a movie in less than five seconds — roughly 100 times faster than the current network technology, 4G. Even more important, 5G is expected to greatly reduce latency to let devices communicate with each other with extremely fast response times.

In the late 1900s, researchers discovered that mitochondria were free-living bacteria at some point in the past. Somehow they were drawn inside another cell, providing new fuel for their host. In 2015, Thijs Ettema of Uppsala University in Sweden and his colleagues discovered fragments of DNA in sediments retrieved from the Arctic Ocean. The fragments contained genes from a species of archaea that seemed to be closely related to eukaryotes.Dr. Ettema and his colleagues named them Asgard archaea. (Asgard is the home of the Norse gods.) DNA from these mystery microbes turned up in a river in North Carolina, hot springs in New Zealand and other places around the world.

Masaru K. Nobu, a microbiologist at the National Institute of Advanced Industrial Science and Technology in Tsukuba, Japan, and his colleagues managed to grow these organisms in a lab. The effort took more than a decade.The microbes, which are adapted to life in the cold seafloor, have a slow-motion existence. Prometheoarchaeum can take as long as 25 days to divide. By contrast, E. coli divides once every 20 minutes.

In the lab, the researchers mimicked the conditions in the seafloor by putting the sediment in a chamber without any oxygen. They pumped in methane and extracted deadly waste gases that might kill the resident microbes.The mud contained many kinds of microbes. But by 2015, the researchers had isolated an intriguing new species of archaea. And when Dr. Ettema and colleagues announced the discovery of Asgard archaea DNA, the Japanese researchers were shocked. Their new, living microbe belonged to that group.The researchers then undertook more painstaking research to understand the new species and link it to the evolution of eukaryotes.The researchers named the microbe Prometheoarchaeum syntrophicum, in honor of Prometheus, the Greek god who gave humans fire — after fashioning them from clay.

This finding suggests that the proteins that eukaryotes used to build complex cells started out doing other things, and only later were assigned new jobs.Dr. Nobu and his colleagues are now trying to figure out what those original jobs were. It’s possible, he said, that Prometheoarchaeum creates its tentacles with genes later used by eukaryotes to build cellular skeletons.

Before the discovery of Prometheoarchaeum, some researchers suspected that the ancestors of eukaryotes lived as predators, swallowing up smaller microbes. They might have engulfed the first mitochondria this way.

Instead of hunting prey, Prometheoarchaeum seems to make its living by slurping up fragments of proteins floating by. Its partners feed on its waste. They, in turn, provide Prometheoarchaeum with vitamins and other essential compounds.

According to classical (i.e. Newtonian) particle theory, the results of the experiment should have corresponded to the slits, the impacts on the screen appearing in two vertical lines. Instead, the results showed that the coherent beams of light were interfering, creating a pattern of bright and dark bands on the screen. This contradicted classical particle theory, in which particles do not interfere with each other, but merely collide.

The only possible explanation for this pattern of interference was that the light beams were in fact behaving as waves

By the late 19th century, James Clerk Maxwell proposed that light was an electromagnetic wave, and devised several equations (known as Maxwell’s equations) to describe how electric and magnetic fields are generated and altered by each other and by charges and currents. By conducting measurements of different types of radiation (magnetic fields, ultraviolet and infrared radiation), he was able to calculate the speed of light in a vacuum (represented as c).

For one, it introduced the idea that major changes occur when things move close the speed of light, including the time-space frame of a moving body appearing to slow down and contract in the direction of motion when measured in the frame of the observer. After centuries of increasingly precise measurements, the speed of light was determined to be 299,792,458 m/s in 1975

According to his theory, wave function also evolves according to a differential equation (aka. the Schrödinger equation). For particles with mass, this equation has solutions; but for particles with no mass, no solution existed. Further experiments involving the Double-Slit Experiment confirmed the dual nature of photons. where measuring devices were incorporated to observe the photons as they passed through the slits.

For instance, its interaction with gravity (along with weak and strong nuclear forces) remains a mystery. Unlocking this, and thus discovering a Theory of Everything (ToE) is something astronomers and physicists look forward to. Someday, we just might have it all figured out!

"The science tells [us] when [we're] on the phone while driving, it is a high-risk activity -- very, very risky,"

Even hands-free phones appear to contribute to unsafe driving

These sorts of injuries, known as repetitive strain injuries or a repetitive motion disorders, are sometimes minor. But they can also lead to serious medical problems.

Our reliance on our cell phones may actually be "training" some of us to believe it is vibrating when it is not. In the case of cell phones, people are rewarded when they pick up their calls and read their incoming text messages, which causes them to pick up their cell phones more and more frequently.

The sores and blisters that some experience from too much texting and typing have earned monikers such as "BlackBerry thumb." And while the sore thumbs may seem like a new phenomenon, medical experts say there is a rational explanation for this modern-day nuisance.

What they found was that when children were on the cell phones, their attention to traffic -- the number of times a participant looked right or left -- went down 20 percent. The risk of getting hit by a car, or the number of close calls, went up 43 percent

According to statistics from the U.S. Centers for Disease Control and Prevention (http://www.cdc.gov/healthyyouth/noise/index.htm), about 12.5 percent of children and adolescents 6 and 19 years old and 17 percent of adults between 20 and 69 years of age have suffered permanent damage to their hearing from excessive exposure to noise. In total, this accounts for more than 30 million people.

Sounds louder than 85 decibels can damage hearing. Normal conversation is about 60 decibels, and stereo headphones out of our MP3-enabled devices often reach 100 decibels.

"This is a huge endeavor for the human species, and it'll take cooperation from more than just our own space program," Stack said. "Once the resources are there, we can develop the technology. It's getting the buy-in from international partners and from our own space administration and government to really make this happen."

No matter the mission, sticking the landing is key for future success. The 2020 rover will land on Mars using the new Terrain Relative Navigation system, which allows the lander to avoid any large hazards in the landing zone.

Astronauts exploring Mars will need oxygen, but carting enough to sustain them on a spacecraft isn't viable. The Mars 2020 rover will carry MOXIE on board, or the Mars Oxygen In-Situ Resource Utilization Experiment.

Speaking of "The Martian," the events of the book and its film adaptation are set in motion when a surprise, devastating dust storm impacts astronauts on the Red Planet. Understanding the weather and environment on Mars will be crucial for determining the conditions astronauts will face.

For the first time, a surface mission will include a ground-penetrating radar instrument called RIMFAX, or Radar Imager for Mars' Subsurface Experiment. It will be able to peek beneath the surface and study Martian geology, looking for rock, ice and boulder layers. Scientists hope that RIMFAX will help them understand the geologic history of Jezero Crater, according to David Paige, principal investigator for the experiment at the University of California, Los Angeles.