Casting Light on the Dark Universe, Euclid's Mission Shows Promise

Dec 23, 2023

3 min

On December 7, 1968, the National Aeronautics and Space Administration (NASA) successfully launched the first functional space telescope into orbit. In the 55 years since, dozens of these crafts have embarked on missions of discovery, advancing and transforming our understanding of the cosmos.


Among the latest is Euclid, a wide-angle space telescope developed by the European Space Agency (ESA). Equipped to chart portions of the universe that are not directly observable and currently shrouded in mystery, Euclid is working to generate a three-dimensional map unlike any other, surveying billions of galaxies out to 10 billion light-years. This past month, the first images from its journey were released.


Joey Neilsen, PhD, is a world-renowned astrophysicist, a frequent collaborator with NASA and an assistant professor in Villanova University’s College of Liberal Arts and Sciences. From his perspective, Euclid’s early returns evidence its voyage’s incredible potential.


“In Euclid’s first image of the Perseus cluster, the sheer number of galaxies is really astonishing,” said Dr. Neilsen. “We talk a lot about how the universe is mostly empty space—and it is!—but it’s also enormous, and it’s really stunning that there’s room for so many galaxies in just a small patch of sky. There are 1,000 galaxies here huddled together in this cluster and over 100,000 in the background.


“I also note some pale purple patches in the image of NGC 6822. These are planetary nebulae, the layers of gas and dust blasted off by stars at the ends of their lives. It’s amazing to be able to see these so clearly in images that show the entire galaxy and its environment at the same time.”


According to Dr. Neilsen, Euclid’s remarkable visuals are the product of a calculated tradeoff. The ESA craft sacrifices the fine resolution of images taken by other observatories, like NASA’s James Webb Space Telescope, to capture cosmic phenomena in greater breadth. By collecting these visuals, Euclid aims to spark breakthroughs on subjects as of yet understudied—breakthroughs that could benefit Dr. Neilsen’s field of research.


“Euclid’s mission is to understand the evolution of the dark components of the universe: the invisible dark matter whose gravity holds large structures like galaxies and galaxy clusters together and the dark energy responsible for the accelerating expansion of the universe,” he explained. “Much of my research focuses on a different aspect of the dark universe (black holes), but there is a puzzle that might connect: observations of very distant galaxies show there were very massive black holes very early on. How did these behemoths grow so big so fast? If would be neat if Euclid helped us to better understand the early universe in a way that informed our understanding of the growth of black holes.”


In tracking and investigating the dark entities that compose and mold the cosmos, Euclid could very well offer insights into the history and development of over 95% of all energy and matter—and perhaps into the very fabric of existence itself. It is reasonable to wonder whether, when its mission is complete in six years’ time, the telescope could provide us with answers to questions that have gone unaddressed for six billion years.


“For me, the best-case scenario would be that Euclid would show clear evidence of something that’s hard to explain with our current models,” said Dr. Neilsen.


“For example, right now, we have ‘Hubble tension,’ a discrepancy between measurements of the expansion of the universe from when it was young and from the current era… The moments when things don’t add up are the ones where we learn the most about how the universe works. So, I’ll keep my fingers crossed for a surprise and for more to learn over the next six billion years.”


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4 min

Digital Contracting Is Broken. A Little "Friction" Could Go a Long Way in Fixing It

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But while making it as easy to unsubscribe as to subscribe sounds great – we all like even playing fields and symmetry – it might be better to also make subscribing a little more burdensome, so people understand what they are getting themselves into in the first place.” This idea is the focus of Frischmann’s recent paper, titled “Better Digital Contracts with Prosocial Friction-in-Design,” the publication of which coincides with public dissatisfaction over digital contracting processes. In August, Disney attempted to have a wrongful death lawsuit blocked, citing print in terms and conditions from a one-month Disney+ free trial the plaintiff signed up for in 2019. Since then, other companies have succeeded in recently blocking the commencement of similar lawsuits. In the research, Frischmann and his co-author, Rice University computer scientist Moshe Vardi, describe these contracts as “dehumanizing” and that they “undermine human autonomy and sociality, by design,” citing how they elicit behavior in a pre-determined manner (such as clicking on cue) and often include side agreements with other entities, unbeknownst to the users. “One-click” contracts rely on legal fictions, such as presuming that clicking an “I have read the terms and conditions” button actually means that they have. They are structured this way intentionally. “The idea behind digital contracting is ‘Let’s make the contract as quick as possible before people leave or change their mind,” Frischmann said. “They only want to do the minimum that the law requires, and all the law requires is notice of terms and action that says, ‘I agree.’” For these reasons, he argues, modern digital contracting contradicts the purpose of contract law in the first place; enabling people to reach genuine agreements and cooperate. “It’s antithetical to the underlying values of a contract,” Frischmann said. “Autonomy is undermined because people are not able to exercise autonomy in a meaningful way when they are not actually capable of deliberating about the terms to which they are agreeing. As for being cooperative, there is no relationship. Digital contracts are completely one-sided.” So what can be done to combat this? “Speedbumps,” Frischmann says, referring to measures that can cause friction in the contracting process to better protect the user. Physical road speedbumps represent a useful analogy, because while they make things slightly more inconvenient for the user, they are deployed strategically where other values are at stake, like the safety of children playing outside. “People tolerate speedbumps,” Frischmann says, “because they serve a social purpose. Friction in digital contracts is similar.” With respect to improving digital contracting, there are multiple measures that can be taken that inherently have such friction, but not all of them are always appropriate. Completely Automated Public Turing Test to Tell Computers and Humans Apart (CAPTCHAs), for example, are a type of friction-in-design that serve a useful social purpose (security) and have become normalized and tolerated, but some CAPTCHAs are ableist and others may generate proprietary data. Where he sees the most beneficial friction existing is in comprehension, which in software form could be completing a task or passing a test to prove an individual understands the agreement. Comprehension is the basis for one of Frischmann’s proposed alterations to contract law. Currently, the oft-criticized concept of informed consent is utilized. He argues it should be replaced with demonstrably informed consent, in essence requiring entities to further show that people truly comprehend what they are agreeing to. “Right now, individuals assent to contracts, going along with terms someone else insisted upon,” he said. “But assenting to terms is very different than being informed and consenting. 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3 min

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