Affordable housing is a growing concern, particularly in the United States. According to the U.S. Chamber of Commerce, the country is facing a severe housing shortage of over 4.7 million homes, and data suggest that most Americans struggle to afford a home. Yet, there could be hope for the housing crisis in the form of a giant robot spider, and no, not the one from the 1999 film Wild, Wild West.

The Australian company Crest Robotics partnered with Earthbuilt Technology to develop a spider-like robot capable of 3D printing a 2,100-square-foot home within 24 hours. The robot, named Charlotte, can “collect readily available materials such as sand, earth and waste products like crushed brick, which are then bound in fabric and compressed to form the layers of a building,” per the company’s website. The aim is to create a “low-cost, low-carbon construction solution” that can address the housing crisis, while also helping to build lunar bases on the Moon for space exploration.

“We’ve truly invented a new approach,” said Dr. Clyde Webster, the founding director of Crest Robotics, to ABC NewsRadio. “These sorts of materials can either be sourced on-site on the building site itself or from any local quarry, so we drastically reduce supply chain risk and supply chain length, which does make it quite cost-effective.”

@daniglaeze

Replying to @Andrea Salazar what does the inside of a finished 3d printed house look like? let me show you ?? leave me decor suggestions pleaseeee #3dprinting #home #3dprinted #3dprintedhouse ♬ original sound – Daniella

While this is a significant breakthrough in home building, concerns remain regarding home buying. GOOD reached out to several real estate and home building professionals for their thoughts, and many question how these cheaper 3D printed homes could stand up to the housing industry, the real estate economy, and natural disasters.

“The biggest challenge is that 3D printing isn’t a one-size-fits-all solution. In places like California, you’re dealing with earthquakes. In the southeast, it’s hurricanes. Right now, the structural integrity of these builds still needs more innovation before they can truly compete with traditional construction, especially in high-risk markets,” said Scott Menard, President and C.O.O. of Homes Built for America.

“Adoption will hinge on building codes, financing, and consumer confidence,” said licensed real estate agent and investor Ben Mizes of Clever Real Estate. “Even if the homes are built to withstand natural disasters, buyers might balk at purchasing without an established track record of durability or resale value.”

“Sure, it can quickly and efficiently build a house, but do your workers have the expertise to add fixtures, finishes, and utility lines?” asked Jonathan Palley, C.E.O. of Clever Tiny Homes. “How much do those machines cost to maintain, repair, and operate? Who knows how to do these things? How long will the finished product last? This thing is interesting, but probably not ready for prime time.”

While some valid criticisms and questions need to be addressed regarding the staying power of a 3D-printed home and whether ownership of one can build equity, there is still a sense of optimism among real estate and housing professionals who reached out to GOOD. While they held to their concerns, they still saw potential in this technology, making homeownership within reach.

“By speeding up builds and lessening dependence on expensive labor, that could go a long way to slashing entry-level home prices in an area of the market where relief is particularly needed,” added Mizes.

“The impact this technology could have on real estate if it became widespread in use is that homes could become more affordable and more available,” said real estate investor and broker Jessica Vance.

“I’m familiar with 3D printed houses. The first major ones were in Austin, Texas, and they turned out pretty great,” said George Smart, C.E.O. of USModernist. “This spider-builder is a natural extension of the machine that built those Austin houses.”

“Will people buy these homes? In the right situations, I think yes,” said Menard. “The demand for housing is so strong that families will embrace new models if they’re safe, durable, and priced right.”

Regardless of whether 3D-printed homes prove their worth as solid shelters and wealth-generating real estate, they can only be relied on as one of several agents of change that need to succeed to improve the housing market and ensure quality shelter for all.

“It’s one piece of a much larger puzzle that requires policy reform, smarter financing, and builders committed to creating attainable housing,” Menard concluded. “The fact that we’re even having this conversation, though, is a positive sign. It shows that new players are stepping up to address a crisis that traditional systems have struggled to solve. I genuinely believe that within my lifetime, we’ll see innovations, whether it’s 3D printing or something else, that finally help close the housing gap.”

  • Scientists ‘bottle the sun’ with a liquid battery that stores sunlight for use at night
    (LEFT) Sun shines on solar panels and (RIGHT) a light bulb glows at night.Photo credit: Canva
    ,

    Scientists ‘bottle the sun’ with a liquid battery that stores sunlight for use at night

    This could help solve one of the fundamental challenges of solar energy.

    Every day, the sun shines more energy on the world than we could ever need. Yet the moment it sets, that power supply disappears—a limitation that challenges green energy sources like solar to keep the lights on after dark.

    Scientists at the University of California, Santa Barbara, now say they can “bottle the sun.” They have developed a new molecule that could free solar power from the constraints of bulky batteries. The tiny structure twists open and closed, allowing sunlight to be stored and later released as heat.

    the sun, eclipse, sunlight, sunshine, solar system
    Photo credit: Canva

    Molecule absorbs light and releases heat

    The major challenge of solar energy has been storage. Massive battery systems, which are inefficient at storing energy over long periods, have posed a costly problem. Researchers reported in Science that they looked to DNA chains to recreate a molecule that changes shape when exposed to sunlight.

    The team of scientists created a synthetic structure that stores and releases energy reversibly. The new material captures sunlight, stores it in chemical bonds for extended periods, and then releases it as heat when needed.

    The molecule acts like a mechanical spring, twisting into a high-energy shape when exposed to sunlight. Even after long periods, it can untwist into its relaxed state, releasing energy as heat.

    “With solar panels, you need an additional battery system to store the energy,” study co-author Benjamin Baker, a doctoral student, told Futurity. “With molecular solar thermal energy storage, the material itself is able to store that energy from sunlight.”

    green energy, forests, green cities, clean energy, alternative energy,
    Photo credit: Canva

    Moving toward green energy

    Around the world, the shift to clean energy isn’t slowing down. Over the next five years, global renewable energy capacity is expected to double, according to the International Energy Agency (IEA). As global energy demand rises, so does the urgency to expand clean energy. The Center for Climate and Energy Solutions found that 32% of electricity was generated from renewables in 2024. Wind and solar are the fastest-growing energy sources in the United States.

    Solar energy has seen massive expansion in Asia, Europe, and emerging markets. It’s driven by global demand, not just wealthy nations. In 2025, more than 30 countries installed record levels of solar in a single year.

    solar panels, alternative energy, science, solar farm
    Photo credit: Canva

    The need for efficient energy storage

    Solar energy output can fluctuate dramatically. Sunny days may generate around 45%, compared to roughly 10% on cloudy days. Storage capacity must scale to meet demand. A 2025 study in the International Journal of Energy Studies reports that solar growth is outpacing our ability to store it.

    There is a growing demand for new and emerging ways to capture and store renewable energy. Systems that store energy as heat, such as hydrogen and thermal-hydro storage, are in high demand. Efforts to develop more efficient and reliable battery solutions remain a key focus of research.

    Life on Earth has always depended on the sun. When it comes to energy, science is working toward a future that doesn’t fade into the night. These emerging technologies are bringing renewable energy storage from the promise of tomorrow into the reality of today.

  • British engineer uses 500 disposable vape batteries to power up electric car
    Combined vape pen batteries can deliver real horsepower.Photo credit: Chris Doel/YouTube

    A British engineer-turned-YouTuber turned heads with a recent invention he created from trash. After building power banks and powering e-bikes with discarded disposable vape pens, Chris Doel transformed 500 vapes into a power source capable of driving a car up to 40 miles per hour.

    On his YouTube channel, Doel documented the experiment. He recovered 500 discarded vape pens and used 3D printing to combine their batteries into a single 50-volt, 2.5-kilowatt battery pack. He then modified it to power a Reva G-Wiz, an early-2000s low-powered electric car. The vape battery pack didn’t just start the G-Wiz; it powered the car enough to travel 18 miles and reach speeds of up to 40 mph.

     “I can’t believe this car has just accepted this crazy Frankenstein battery that I’ve just slapped in it,” Doel said in the video.

    The engineer points out a problem with single-use electronic products

    Doel’s feat wasn’t just a display of ingenuity; it also highlighted a growing problem—specifically, the mounting burden of landfill waste. According to a 2024 report by Wired, 137 billion pounds of e-waste, including vape pens, are generated each year. Only one quarter of that waste is recycled.

    As Doel pointed out, much of this waste isn’t just metal and materials going to waste, but also a loss of reusable energy.

    “Unfortunately we seem to live in some crazy dystopia where buying these single use devices and then chucking them away is totally normalized, despite them having fully rechargeable lithium ion cells inside them,” Doel said.

    @sustainabilitymattersva

    E-waste will continue to become a bigger issue in the future. Be sure to do you part to mitigate the problem by properly disposing of your old electronics📱 #ewaste #landfills #landfill #waste #trash #recycle #wastedisposal #electronics

    ♬ original sound – Sustainability Matters

    Cumulative e-waste isn’t just environmentally harmful; it also poses risks to human health. The World Health Organization warns that much of this waste releases toxic chemicals and materials into soil and water. Prolonged exposure can negatively affect the health of children, pregnant women, and others.

    To reduce the amount of e-waste filling landfills, it’s important to dispose of these products properly. After deleting all personal information, consider donating your electronics to a friend or an organization. Items with lithium-ion batteries, such as vape pens, shouldn’t be thrown in the regular trash.

    You can search online to find a proper e-waste facility in your area. More information on how to properly dispose of or recycle e-waste is available on the United States Environmental Protection Agency website.

  • Scottish children are helping penguins find mating partners with these tiny, painted stones
    Scottish kids are helping penguins get a date.Photo credit: Edinburgh Zoo on Instagram
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    Scottish children are helping penguins find mating partners with these tiny, painted stones

    “I would cry if a penguin picked MY pebble 😭 It’s a life goal”

    During mating season, male gentoo penguins are tasked to find pretty and smooth rocks to present to prospective mates. This is meant as a gesture to woo them and to be used to build a nest with them, too. Well, this season, the penguins at the Edinburgh Zoo in Scotland got some help.

    Kids being supported by the Edinburgh Children’s Hospital Charity gathered together to paint pebbles with vibrant colors for the penguins. The hospitalized children do this every year with the first stone traditionally placed in the penguin enclosure. The children often watch a livestream of the gentoo penguin enclosure to see the penguin pick their favorite rocks that they’ve painted.

    Commenters sound off on the penguins’ pebbling

    The Edinburgh Zoo posted this year’s pebbling pickings on Instagram, delighting the commenters:

    “I would cry if a penguin picked MY pebble 😭 It’s a life goal lol.”

    “This is just brilliant! How wonderful to see a creative health initiative that actively connects the children with a purpose like this!”

    “This is heartwarming ❤️❤️❤️”

    “This is brilliant for the penguins and the children! Can’t wait to see the beautiful nests.”

    “My grandson painted a pebble he’s hoping it gets picked.🤞🤞🤞”

    “Penguin pebble pilfering season is upon us! So pleased it makes so many people (and penguins) happy.”

     “Oh no, now I’m questioning if penguins have favourite colours.”

    “Any that aren’t picked would make an awesome rock garden that kids visiting the zoo could pick from!!”

    “This is the cutest thing I have seen probably ever.”

    Pebbling practices for human relationships

    As mentioned, this mating ritual called “pebbling” is a gesture made by male penguins to their mate to not just build a nest. It’s their version of saying, “I saw this and I thought of you.” In fact, psychologists and couples therapists recommend adopting a version of pebbling for human relationships.

    Now to “pebble” in dating or married relationships doesn’t literally mean giving your partner rocks (unless they’re a geologist that would love that sort of thing). For humans, pebbling your partner means to share or give a small gift like a flower, toy, or object that has some meaning to one or both of you. It doesn’t always have to be a gift either, but it could be a photo, social media post, or a meme you can text them. It’s essentially anything that conveys “I saw this and thought of you” in order to showcase affection to them and initiate closer conversations.

    Pebbling isn’t just for romantic couples either. Many autistic people find it more difficult to navigate socially due to high anxiety, sensory sensitivities, or having trouble interpreting social cues. By texting a GIF to a friend, giving a small flower to their parent during a walk, or other such pebbling, it allows some autistic people the ability to communicate their affection and connection without the pressure of using words.

    Whether it’s a colorful rock or something else, pebbling can be a valid form of communication between friends, partners, or potential mates. It all depends on who you choose to build a nest with.

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