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Mars buildings could be built using components made from bacteria

A view of Mars. Credit: NASA/JPL-Caltech

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Bacteria could be useful construction tools when it comes to building cities on Mars.

Elon Musk recently detailed his plans for establishing a city on Mars. But before we take up residence on the red planet, we’re going to need some help laying the groundwork. Here’s where bacteria come in.

A special group of microorganisms, called Shewanella oneidensis, would make excellent helpers, says Benjamin Lehner, a doctoral candidate at Delft University of Technology in the Netherlands.

Shewanella belongs to a group of bacterium called exoelectrogens, which possess an unusual skill: They can produce electricity. But that’s not all. Lehner says the bacterium can also mine iron out of the Martian soil.

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In 2018, NASA sent a batch of these helpful bacterium to the space station to see how well they thrive in space. Now Lehner wants to send them on to Mars, ahead of human explorers.

“In its natural form, we can’t use much of the iron in the Martian soil,” Lehner said in a statement. “But S. oneidensis has the ability to turn part of the soil into magnetite, a magnetic oxide of iron.”

That iron would then be used as building materials for future structures on Mars.

A glimpse of AI SpaceFactory’s MARSHA Mars habitat. Bacteria could be used to create building materials for future habitats like this one. Credit: AI SpaceFactory & PLOMP

So how would it work? Lehner says that three things should sent to Mars ahead of any human expeditions:  a rover, a bioreactor and a 3D printer. The rover would fetch batches of Martian soil, called regolith, then feed it into the bioreactor.

The Martian soil is rich in iron and the S. oneidensis loves to munch on iron, so it would be waiting in the bioreactor, ready to chow down.

The bacteria would then produce magnetite as a byproduct from the regolith. The magnetite would then be extracted and separated from the rest of the soil with magnets. Finally, the 3D printer would turn this raw metal material into a host of valuable parts for humans.

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Bacteria can be used to extract iron from the Martian soil that can be used as building materials. Credit: ESA–G. Porter, CC BY-SA 3.0 IGO / Lithoz

The printer could create any part necessaryscrews, nuts, bolts—for building structures (including human habitats) on Mars.

So how much iron could these microbes realistically produce? Leher and his team estimate they could have a substantial amount in a few year’s time.

According to the researchers, a 370-gallon (1,400-liter) reactor could yield about 770-lbs. (350 kilograms) of the material each year. “After 3.3 years, it would produce more iron than can fit inside the capsule,” he explained. “By sending several of these unmanned modules to Mars, we can produce a good amount of iron in a few years’ time.”

Lehrer and his team propose using bacteria to mine mangenite from the Martian regolith. Credit: ESA–G. Porter, CC BY-SA 3.0 IGO / Lithoz

Bacteria are advantageous because they’re self-replicating, can withstand the harsh radiation on Mars, and are cheap to transport. They only need one thing: food.

To that end, Lehner suggests sending microalgae along with the bacteria. These organisms live off of sunlight and CO2, two things that are plentiful on Mars. The microalgae will turn those ingredients into nutrients and oxygen, perfect for the bacteria.

How the process would work. Credit: ESA

But what if some rogue bacteria make their way out of the reactor? Would we then contaminate Mars with Earth microbes? What does this mean for the search for life?

“We want to prevent our bacteria from contaminating the planet, since that could hinder the search for life on Mars,” Lehner said. To mitigate any chances of contamination, Lehner’s team says that the bioreactor and any iron material produced needs to be safely contained.

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Starlink Direct to Cell to boost remote businesses in Chile

Entel teams up with Starlink Direct to Cell to power SMEs & industries in Chile’s remote regions. Remote businesses get a major tech upgrade.

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(Credit: SpaceX)

Entel will provide Starlink Direct to Cell services to businesses in Chile and Peru, boosting connectivity in underserved regions.

Entel is Chile’s leading telecommunications provider. Its strategic collaboration leverages Starlink’s Direct to Cell service by offering advanced internet solutions to small and medium-sized enterprises (SMEs) and large corporations.

The partnership targets industries like mining, agriculture, and forestry, which often face connectivity challenges in remote areas. By tapping into Starlink’s low-latency satellite constellation, Entel aims to bridge these gaps, driving innovation and competitiveness.

The collaboration with Entel follows Starlink’s April expansion in Brazil, where its internet was integrated into John Deere’s agricultural equipment. Through its mobile app, Starlink provided Brazilian farmers with live video feeds, sensor data, and real-time sharing.

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Entel’s Starlink Direct to Cell service includes value-added features such as 24/7 network monitoring, proactive management, and dedicated technical support. An observability feature will allow businesses to track real-time connectivity performance through web or mobile applications, enhancing operational efficiency.

The service’s accessibility to SMEs is a key focus. Starlink Direct to Cell is expected to empower small businesses to engage in e-commerce, improve customer communication, and expand digital operations.

Starlink’s Direct to Cell expansion into Peru underscores Entel’s regional ambitions, positioning it as a leader in Latin America’s business connectivity landscape. While details of the Peruvian rollout remain forthcoming, the move aligns with the region’s post-COVID-19 economic recovery. Reliable internet is critical for businesses to adopt cloud-based technologies and access global markets.

Starlink’s growing influence in Latin America highlights its role in transforming connectivity for underserved areas. Entel’s partnership strengthens its portfolio and helps businesses navigate a digital economy. As industries in Chile and Peru leverage Starlink’s capabilities, the collaboration could set a precedent for regional telecom providers, fostering innovation and economic growth across diverse sectors.

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SpaceX’s Starlink Router Mini targets home Wi-Fi dead zones for $40

The Starlink Router Mini tackles home Wi-Fi dead zones for just $40. Compact & mesh-compatible, it’s built for basic setups.

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SpaceX’s Starlink Router Mini recently launched to enhance home Wi-Fi connectivity by addressing dead zones at home, offering a budget-friendly option for customers. The Starlink Router Mini is a $40 mesh-compatible device.

The Router Mini targets users seeking affordable solutions to extend coverage in smaller spaces. SpaceX describes the new Starlink router as a lower-performance device suited for “basic Wi-Fi needs” in compact setups.

“It works well in most basic residential setups and is a good option for extending coverage. However, in homes where rooms have multiple barriers between them (mirrors, multiple walls, brick or stone walls), you may notice a drop in performance unless you use wired connections,” the company noted.

In contrast, the Gen 3 router, now priced at $120 after dropping from $199, delivers stronger performance for larger homes with multiple devices. The Router Mini complements the Gen 3 router, which comes bundled with the standard Starlink dish and supports mesh networking.

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“If you need simple, reliable Wi-Fi and want to keep costs down, the Router Mini is a solid option. But if you’re looking for stronger, more consistent performance across a larger or busier home, the Gen 3 Router is the way to go,” SpaceX explained.

Both routers support Wi-Fi 6 speeds and can operate in wired or wireless mesh modes, though the dual-band Starlink Router Mini has fewer antennas (“2×2 2.4 GHz, 2×3 5 GHz MU-MIMO”) compared to the tri-band Gen 3’s four-plus antenna setup.

The Router Mini’s debut follows its appearance in an FCC filing and a Starlink app update referencing a “mini mesh” device. It also connects to the Starlink Mini dish, boosting its limited Wi-Fi range. The device’s affordability and mesh compatibility make it an attractive option for customers looking to optimize their Starlink setup without investing in additional Gen 3 routers.

As Starlink continues to expand its global broadband network, the Router Mini addresses growing demand for flexible, cost-effective home connectivity solutions. By offering a cheaper mesh device, SpaceX strengthens its ecosystem, catering to diverse user needs while maintaining its lead in satellite internet innovation.

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SpaceX secures FAA approval for 25 annual Starship launches

SpaceX scored FAA approval for up to 25 Starship launches annually. The agency found no major environmental impact, but critics remain skeptical.

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(Credit: SpaceX)

SpaceX secured Federal Aviation Administration (FAA) approval to launch and land Starship rockets and Super Heavy boosters from its Starbase spaceport in Boca Chica, Texas, up to 25 times a year. The FAA’s decision was announced on Tuesday, marking a pivotal step for SpaceX’s ambitious space exploration goals.

The FAA’s SpaceX approval is part of its ongoing license review. The agency noted that “there are other licensing requirements still to be completed,” including evaluations of policy, payload, safety, financial responsibility, and environmental impacts.“Once the evaluation process is complete, the FAA will make a determination to approve or deny the license application,” the agency added.

The FAA’s final environmental assessment concluded that SpaceX’s expanded launch plans would have “no significant impact” on the surrounding environment, defying a history of legal disputes with environmental groups.

The ruling follows a significant weekend for Starbase, where residents—mostly SpaceX employees—voted to incorporate the area as a city. Starbasee City includes a mayor and two commissioners from the aerospace company’s ranks. The FAA’s decision amplifies SpaceX’s momentum but has sparked concerns among environmentalists.

Christopher Basaldu of the South Texas Environmental Justice Network called the environmental assessment premature.

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“You’re bragging about the big slot rocket in history, and then you’re also trying to claim that it makes no environmental impact; that’s impossible. So they’re lying. So what the FAA needs to do is they need to go all the way back to square one,” Basaldu said.

Basaldu highlighted potential harm to marine life, pollution risks to the nearby Rio Grande, and disruptions from noise and night operations coming from SpaceX launches.

“A lot of noise pollution. That’s not a lot of night pollution, because they try to continue working through the night, while SpaceX is going to shut down the road for half of the year.”

As SpaceX pushes to scale Starship operations, the FAA’s approval underscores Starbase’s growing role in space exploration. However, ongoing environmental reviews and local concerns signal challenges ahead, balancing innovation with ecological and community impacts.

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