The James Webb Space Telescope‘s latest psychedelic view reveals an exploded star.
But this supernova is special. That’s because, from our perch in the galaxy, the new stellar blast appears three times in a warped line — like it’s floating in front of a funhouse mirror. This distorting effect happens because objects in space can be so massive — often clusters of galaxies — that they warp the cosmos, like a bowling ball sitting on a mattress. This creates a curved “cosmic lens,” bending and distorting light, while also magnifying and brightening the light.
“The lens, consisting of a cluster of galaxies that is situated between the supernova and us, bends the supernova’s light into multiple images,” Brenda Frye, an astronomer from the University of Arizona who helped undertake the new research, said in a statement.
Though, she added, in the case of this supernova, a “trifold mirror” is even better suited to describe this triple view. “This is similar to how a trifold vanity mirror presents three different images of a person sitting in front of it,” Frye said.
Crucially, the mirror effect is of great value to astronomers. They can use the differences in light from the distant supernova to help measure the long-sought expansion of the universe (yes, the sprawling universe is constantly expanding).
“To achieve three images, the light traveled along three different paths,” Frye explained. “Since each path had a different length, and light traveled at the same speed, the supernova was imaged in this Webb observation at three different times during its explosion. In the trifold mirror analogy, a time-delay ensued in which the right-hand mirror depicted a person lifting a comb, the left-hand mirror showed hair being combed, and the middle mirror displayed the person putting down the comb.”
The three circles below show the supernova, dubbed “H0pe” — H0 is short for the “Hubble constant,” the name for the rate of the universe’s expansion. The vivid, white, fuzzy objects are the galaxies in the foreground creating the lens, located some 3.6 billion light-years away.
Credit: NASA / ESA / CSA / STScI / B. Frye (University of Arizona) / R. Windhorst (Arizona State University) / S. Cohen (Arizona State University) / J. D’Silva (University of Western Australia, Perth) / A. Koekemoer (Space Telescope Science Institute) / J. Summers (Arizona State University)
The universe’s rate of expansion is an ongoing area of research, with different methods employed to narrow down an answer. In this case, the light measurements Frye and the team recorded from supernova H0pe show an expansion of 75.4 kilometers per second per megaparsec, with an uncertainty range of plus 8.1 or minus 5.5 parsecs. These are big numbers. For reference, a parsec equals 3.26 light-years, and a single light-year is nearly 6 trillion miles.
Don’t let your head explode.
The Webb telescope’s powerful abilities
The Webb telescope — a scientific collaboration between NASA, ESA, and the Canadian Space Agency — is designed to peer into the deepest cosmos and reveal new insights about the early universe. But it’s also examining intriguing planets in our galaxy, along with the planets and moons in our solar system.
Here’s how Webb is achieving unparalleled feats, and likely will for decades to come:
– Giant mirror: Webb’s mirror, which captures light, is over 21 feet across. That’s over two-and-a-half times larger than the Hubble Space Telescope’s mirror. Capturing more light allows Webb to see more distant, ancient objects. The telescope is peering at stars and galaxies that formed over 13 billion years ago, just a few hundred million years after the Big Bang. “We’re going to see the very first stars and galaxies that ever formed,” Jean Creighton, an astronomer and the director of the Manfred Olson Planetarium at the University of Wisconsin–Milwaukee, told Mashable in 2021.
– Infrared view: Unlike Hubble, which largely views light that’s visible to us, Webb is primarily an infrared telescope, meaning it views light in the infrared spectrum. This allows us to see far more of the universe. Infrared has longer wavelengths than visible light, so the light waves more efficiently slip through cosmic clouds; the light doesn’t as often collide with and get scattered by these densely packed particles. Ultimately, Webb’s infrared eyesight can penetrate places Hubble can’t.
“It lifts the veil,” said Creighton.
– Peering into distant exoplanets: The Webb telescope carries specialized equipment called spectrographs that will revolutionize our understanding of these far-off worlds. The instruments can decipher what molecules (such as water, carbon dioxide, and methane) exist in the atmospheres of distant exoplanets — be they gas giants or smaller rocky worlds. Webb looks at exoplanets in the Milky Way galaxy. Who knows what we’ll find?
“We might learn things we never thought about,” Mercedes López-Morales, an exoplanet researcher and astrophysicist at the Center for Astrophysics-Harvard & Smithsonian, told Mashable in 2021.
Already, astronomers have successfully found intriguing chemical reactions on a planet 700 light-years away, and have started looking at one of the most anticipated places in the cosmos: the rocky, Earth-sized planets of the TRAPPIST solar system.
Astronomers used the James Webb Space Telescope to observe a supernova in deep space. The findings help scientists understand how fast the universe is expanding.
The Amazon Marketplace: Empowering Sellers and Shaping Consumer Behavior
The Amazon Marketplace has emerged as a powerful force in the global economy, redefining how businesses operate and how consumers shop. Since its launch in 2000, Amazon Marketplace has grown into one of the largest online marketplaces in the world, with millions of sellers and an even larger base of customers. This platform has not only democratized e-commerce, providing opportunities for businesses of all sizes, but it has also significantly influenced consumer behavior. This article explores how the Amazon Marketplace empowers sellers and shapes consumer behavior.
Empowering Sellers: Opportunities and Challenges
The Amazon Marketplace has opened up unprecedented opportunities for sellers, from individual entrepreneurs to large corporations. One of the most significant benefits for sellers is the access to Amazon’s vast customer base. With over 300 million active users globally, Amazon provides a ready-made audience for sellers, eliminating the need for extensive marketing efforts to drive traffic to their products.
Lower Barriers to Entry
One of the most profound ways Amazon empowers sellers is by lowering the barriers to entry into the e-commerce space. Traditionally, setting up an online store required significant investment in website development, payment processing systems, and logistics. Amazon Marketplace simplifies this process by providing a platform where sellers can list their products, handle transactions, and even manage shipping through Amazon’s Fulfillment by Amazon (FBA) service.
FBA, in particular, has been a game-changer for many small and medium-sized businesses. It allows sellers to store their products in Amazon’s warehouses, where Amazon takes care of packing, shipping, and even customer service. This service not only reduces the logistical burden on sellers but also ensures that their products are eligible for Amazon Prime, which can significantly boost sales.
Global Reach
The global reach of Amazon Marketplace is another significant advantage for sellers. With Amazon’s presence in numerous countries, sellers can tap into international markets with relative ease. Amazon’s Global Selling program enables sellers to list their products in multiple countries, allowing them to expand their customer base far beyond their home market. This global reach is particularly beneficial for small businesses that may not have the resources to enter international markets independently.
Data and Analytics
Amazon provides sellers with valuable data and analytics tools that can help them optimize their listings and marketing strategies. Through the Seller Central dashboard, sellers have access to detailed reports on sales, customer behavior, and advertising performance. This data-driven approach allows sellers to make informed decisions about pricing, inventory management, and advertising, ultimately leading to better business outcomes.
Challenges for Sellers
However, selling on Amazon is not without its challenges. The competition on the platform is fierce, with millions of sellers vying for the attention of customers. To stand out, sellers must invest in optimizing their product listings, managing reviews, and running targeted advertising campaigns. Additionally, Amazon’s fee structure, which includes referral fees, FBA fees, and other charges, can eat into sellers’ profit margins, especially for those selling low-margin products.
Moreover, Amazon’s control over the marketplace means that sellers are subject to its policies and regulations. This can be a double-edged sword; while Amazon’s strict guidelines help maintain a level of quality and trust on the platform, they can also be restrictive for sellers. Policy changes, such as adjustments to fee structures or new regulations regarding product listings, can have a significant impact on sellers’ businesses.
Shaping Consumer Behavior: Convenience and Choice
The Amazon Marketplace has not only empowered sellers but also transformed consumer behavior in profound ways. The platform has become synonymous with convenience, choice, and competitive pricing, which are key drivers of consumer decisions.
Convenience and Speed
One of the most significant impacts of Amazon on consumer behavior is the expectation of convenience and speed. Amazon’s streamlined shopping experience, coupled with services like Amazon Prime, has set a new standard for online shopping. Consumers now expect fast, often same-day, delivery, easy returns, and a seamless shopping experience across devices. This has raised the bar for other e-commerce platforms and even brick-and-mortar stores, which have had to adapt to meet these heightened expectations.
The convenience offered by Amazon extends beyond just delivery speed. Features like one-click purchasing, personalized recommendations, and a user-friendly mobile app have made shopping on Amazon almost effortless. This ease of use has contributed to the platform becoming the go-to destination for many consumers, particularly for everyday purchases.
Broad Product Selection
Amazon’s vast selection of products is another factor that has shaped consumer behavior. The marketplace offers a seemingly endless array of products across virtually every category, from electronics to groceries. This extensive selection is possible because of the millions of third-party sellers who list their products on the platform, alongside Amazon’s own offerings.
This breadth of choice has shifted consumer expectations, leading to a preference for platforms that offer a wide variety of options. Consumers are now less willing to visit multiple websites or stores to find what they need, preferring the convenience of one-stop shopping. This trend has also put pressure on traditional retailers to expand their product offerings and improve their online shopping experiences.
Price Sensitivity and Competitive Pricing
Amazon’s pricing strategies have also influenced consumer behavior, making customers more price-sensitive. The platform’s dynamic pricing model, where prices can change frequently based on factors like demand and competition, encourages consumers to compare prices and seek out the best deals. Additionally, features like Amazon’s price tracking tools and the ability to view historical prices have made consumers more aware of price fluctuations and more likely to wait for discounts before making a purchase.
This increased price sensitivity has impacted the broader retail landscape, forcing competitors to adopt more aggressive pricing strategies to stay competitive. It has also led to the rise of price comparison tools and apps, further empowering consumers to find the best deals.
The Role of Reviews and Ratings
Amazon’s review system is another key factor influencing consumer behavior. Customer reviews and ratings have become a critical component of the decision-making process for many shoppers. Positive reviews can significantly boost a product’s visibility and sales, while negative reviews can deter potential buyers. This has led to a culture where consumers rely heavily on the experiences of others to guide their purchasing decisions.
The importance of reviews has also created a new challenge for sellers, who must actively manage their reputation on the platform. This has given rise to practices like review solicitation and even, unfortunately, fake reviews. However, Amazon has taken steps to combat these practices, implementing stricter policies and algorithms to detect and remove fraudulent reviews.
Conclusion
The Amazon Marketplace has had a profound impact on both sellers and consumers, reshaping the e-commerce landscape in the process. By empowering sellers with access to a global customer base, powerful data tools, and logistical support, Amazon has lowered the barriers to entry for businesses of all sizes. At the same time, the platform has transformed consumer behavior, setting new standards for convenience, choice, and pricing.
As Amazon continues to evolve, its influence on the global economy and consumer culture will likely only grow. For sellers, the challenge will be to navigate the complexities of the platform and find ways to stand out in an increasingly crowded marketplace. For consumers, the Amazon Marketplace will continue to be a driving force behind the expectations and behaviors that define the future of shopping.
