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US military uses genetic engineering to develop “living tripwires” for submarines

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The US Department of Defense (DoD) is investing $45 million dollars in a tri-service effort that focuses on synthetic biology (SynBio) for use in military technologies. This interdisciplinary scientific field primarily involves altering the genetic makeup of organisms to achieve specific behavior, and the military wants in on its potential applications. By uniting SynBio experts within the US Air Force, Army, and Navy, DoD officials hope to develop serious capabilities for use throughout the military’s branches.

The long form name of this project is the Applied Research for the Advancement of Science and Technology Priorities Program on Synthetic Biology for Military Environments, and the mission is obvious from its title alone. While still in the early research stages, engineering organisms could provide numerous tools with direct defense applications.

For example, organisms engineered to change their colors based on their environment could be used as living camouflage, and medications infused with protective microbes could help service member survival in tough conditions. However, it’s perhaps the US Naval Research Laboratory (NRL) in Washington DC that may hold the relevant interest in developing SynBio capabilities due to the marine environment potentials it holds.

The USS America arrives at Joint Base Pearl Harbor-Hickam, Hawaii. Ships like these require regular maintenance paint that consumes billions of dollars per year from the DoD budget. | Credit: US Department of Defense

Above the water, engineered self-repairing organisms could spell out self-healing paint for ships and aircraft carriers, cutting billions from the US Navy’s fleet maintenance costs. Even more important for defense needs, though, are the modified organisms that could help the branch’s deep water operations, i.e., submarines. By modifying the environmental response of naturally present organisms, naval defense could have a new type of radar at their disposal.

An abundant seawater-native bacteria with “clinging” properties called Marinobacter is a prime candidate for the DoD’s purposes. Specifically, the organism could be genetically engineered to react to certain types of molecules that aren’t naturally occurring in the ocean, such as diesel fuel or human DNA, and then spread into targeted environments for monitoring. This reaction could perhaps be the release of an electron, thus creating an electrical signal which nearby drones could pick up and transmit where necessary. The ability to detect non-friendly submarines is the key capability the researchers are aiming to achieve, the bacteria acting as “living tripwires.”

The field of synthetic biology is not new in the civilian world. In fact, consumer products currently exist based on it, such as bio fuels, soaps, cleaners, food additives, and a variety of industrial and manufacturing products. One of the challenges of bringing this type of technology to the field for military use is making the modified organisms tough enough to endure the environments needed.

“If you want to move a biological bio-based sensor to the field you try to ruggedize those organisms. You try to protect them…[and]…increase their longevity in these harsh environments,” explained Dimitra Stratis-Cullum, the lead of U.S. Army Research Laboratory biomaterials team, in a recent forum hosted by the Johns Hopkins University Applied Physics Laboratory.

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The current genetic research being conducted in SynBio has demonstrated that the genes of E. coli bacteria can be manipulated to express properties relevant to the larger goal of underwater sensing. However, the significant differences between the E. Coli and the types of organisms natural to deep water environments, such as Marinobacter, can be compared to the differences between mice and humans.

The initial point really is to either prove that the desired outcome is possible or collect data to assist in that effort. In other words, there’s still a lot of work to be done, but making the effort a priority, such as what the Navy’s done with its “Task Force Ocean” mission aimed at strengthening partnerships within academia and the private sector regarding Navy-relevant ocean science, is a focused step in the right direction for the military to achieve its goals in SynBio.

Accidental computer geek, fascinated by most history and the multiplanetary future on its way. Quite keen on the democratization of space. | It's pronounced day-sha, but I answer to almost any variation thereof.

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Elon Musk drops a Thanksgiving hint about Starship’s biggest test yet

Elon Musk says Starship Flight 15 will try to catch the ship itself, a first.

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Elon Musk says SpaceX’s next Starship flight will try something nobody has done before, by catching the ship itself. Speaking to roughly 2,000 people at the X Takeover event at Giga Texas on Saturday, Musk said Flight 15 is about four to six weeks away and “probably launches a little bit before Thanksgiving, is my guess.”

That is a slip from earlier reporting, which had pointed to a launch as early as October 19. Musk explained why the date keeps moving. “We’re making a bunch of improvements to the rocket between every flight,” he said, adding that there are often hundreds, sometimes thousands, of small changes. This time the list is short, “but some of them take a fair bit of work and we’ve got to go inside the tank to make some of these changes.”

“We’re going to try to catch the ship, which is a super big deal,” Musk said. “If we do so, that’ll be the first time that there’s been full recovery of an orbital class rocket.” SpaceX has already caught the Super Heavy booster with the tower’s mechanical arms, and has talked about catching the ship since late 2025, but the upper stage has never been caught.

Musk also laid out what comes after. “The next big milestone would be to refly both the booster and the ship,” he said, describing a Flight 16 where “all parts of an orbital rocket are reflown.”

The reason SpaceX wants this comes down to cost and cadence. Every Starship ship so far has ended its flight in the ocean, and SpaceX expects most of those water landings to end in fireballs. A ship that returns to Starbase intact can be inspected and flown again. SpaceX’s IPO filing, says Starship V3 is designed to deliver 100 metric tons to orbit in a fully reusable configuration, that SpaceX aims to cut the cost to reach orbit by 99% or more versus the historical average, and that tower catches should allow “multiple launches per day.”

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The payoff goes beyond cheaper launches. The next generation Starlink V3 satellites are too large for Falcon 9 and can only fly on Starship, which can carry up to 60 per flight. Flight 14 on September 28 deployed the first 26 of them after Starship reached orbit despite an early engine shutdown, as Teslarati reported. Musk blamed engine computer software, and said the heat shield “was extremely robust,” which he claimed in August had solved Starship’s biggest challenge.

NASA’s Moon plans depend on the same capability. NASA’s inspector general has described a lander mission that needs a propellant depot in low Earth orbit and more than 10 tanker flights, with SpaceX targeting one tanker launch every six days. That schedule only works if ships and boosters come back fast and fly again. Also, ship to ship propellant transfer has not been attempted yet.

One interesting hurdle yet to be explored is bringing the ship back to the launch site, with reentry over land, which will undoubtedly come with a lot of aviation safety reviews.

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Tesla’s mirrorless Cybercab will give riders a visibility upgrade

Tesla engineer confirms Cybercab update letting riders pull up rear and repeater cameras on demand.

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Tesla Cybercab camera visibility for passengers (Credit: Dan Burkland via X)
Tesla Cybercab camera visibility for passengers (Credit: Dan Burkland via X)

Tesla is working on a Cybercab update that would let passengers pull up the vehicle’s rear and side cameras on demand, and the request came straight from a rider.

The exchange played out on X late Friday. Cybercab rider Dan Burkland shared photos of the two-seater’s cabin screen after an evening ride, praised the UI team’s work, and left one request: let riders open the rear and repeater cameras whenever they want, “especially for peace of mind.” Tesla UI software engineer Evan (@CarCoder) answered with two words: “In development.”

The idea fits a pattern Teslarati has tracked since public rides began. Days after paid Cybercab service opened in Austin, Tesla sent riders a survey that asked them to rate the touchscreen, the app and the cabin, and to pick the features they wanted most. We reported on that survey in September, and a camera view is the kind of small software change Tesla can push quickly if riders keep asking.

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It also speaks to something unique about the vehicle. With no steering wheel, no pedals and no driver, passengers have no mirror to check and no way to see behind them. The hardware is clearly built for camera awareness, from the repeater cameras to the rear camera. Letting a passenger look through those same cameras would give a nervous first time rider a way to confirm what is around the car.

The timing matters because the fleet is growing fast. Tesla’s Robotaxi account said on Saturday that more than 300 Cybercabs are now serving Austin, an eightfold increase in 30 days, and Tesla AI chief Ashok Elluswamy named Dallas as the next city. More cars and more cities mean more people riding in a driverless vehicle for the first time, which is exactly when small trust features carry weight.

For now, the feature is confirmed only as in development. If Tesla follows its usual pattern with Cybercab software, riders could see it appear in a point release without any announcement, and Teslarati will watch for it.

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Tesla’s Cybercab fleet jumped 8x in a month, with Dallas up next

Tesla confirms its first official Cybercab fleet number as Austin scales fast and Dallas looms.

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Tesla says more than 300 Cybercabs are now serving Austin, the first time the company has put an official number on its active Cybercab fleet. The figure came from the Robotaxi account on X on Saturday, which wrote that one month after launch the service had “scaled to 300+ Cybercabs serving Austin – an 8x increase in 30 days.”

Ashok Elluswamy, Tesla’s head of AI software, quoted the post with a line that carried the bigger news. “Two years since the 10/10 Cybercab WeRobot event, the cabs are everywhere in Austin now. Dallas soon,” he wrote. It is the first time Tesla has named the next city for public Cybercab rides.

Tesla opened Cybercab rides to the public in Austin on September 4, as Teslarati reported, a day after an invite only launch event. The ramp since then has been steep. Our September 28 report had the fleet at well over 100 units after availability jumped from 58 to 125 in a single week. On Thursday, Tesla added 150 Cybercabs to the Texas automated vehicle registry, lifting its registered count to 319 from 169. The first seven appeared on the registry on August 31.

RobotaxiTracker, a community site that counts vehicles from sightings and state records, listed 275 vehicles in unsupervised service in Austin on Saturday, 105 of them Cybercabs, which is well below Tesla’s figure. Tracker counts can lag official numbers, though Sawyer Merritt noted that Cybercab wait times in Austin stayed short on Saturday evening even with more than 2,000 fans in town for X Takeover.

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Regulators are watching the rollout. NHTSA opened an audit query into Tesla’s certification that the Cybercab meets federal safety standards, and sworn answers are due October 30. Tesla reports third quarter earnings on October 21, which gives the company a natural venue to define its fleet numbers and put a date on Dallas.

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