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SpaceX Dragon spacecraft caught by robotic space station arm for the last time

SpaceX's Cargo Dragon spacecraft has been caught by the International Space Station's robotic arm for the 20th and final time. (NASA)

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On March 9th, SpaceX’s CRS-20 Cargo Dragon completed an uneventful journey to the International Space Station (ISS), where the spacecraft was successfully captured giant robotic arm for the last time.

Barring several major surprises, Dragon’s March 9th capture was the last time a SpaceX spacecraft berthed with a space station for the foreseeable future – possibly forever. Referring to the process of astronauts manually catching visiting vehicles and installing them on an airlock with a giant, robotic arm, berthing is a much younger technology than docking and was developed as an alternative for a few particular reasons. Perhaps most importantly, the Common Berthing Mechanism (CBM) ports used by Cargo Dragon, Cygnus, and HTV spacecraft are more than 60% wider than standard docking ports. In other words, spacecraft that berth can transport substantially larger pieces of cargo to and from the space station.

More significantly, however, the CBM standard came about in large part due to the decision to assemble the ISS out of 16 pressurized segments, each separately launched into orbit. Measuring about 1.25m (4.2 ft) wide, the CBM ports that connect most of the space station’s 16 livable segments make the ISS far more practical for the astronauts that crew it, while also allowing for larger hardware to be moved between each module. With Crew Dragon, design requirements meant that SpaceX had to move from berthing to docking, a trait SpaceX thus carried over when it chose to base its Cargo Dragon replacement on a lightly-modified Crew Dragon design.

Cargo Dragon was captured by the space station’s robotic arm on March 9th (above), likely the last time a SpaceX spacecraft has berthed with the ISS. (NASA/SpaceX)

Now verging on routine, Cargo Dragon capsule C112 began its final approach to the International Space Station on March 9th, pausing at set keep-out zones while SpaceX operators waited for NASA and ISS approval to continue. After several stops, Dragon arrived at the last hold point – some 10m (33 ft) away from the station – and NASA astronaut Jessica Meir manually steered Canadarm2 to a successful capture, quite literally grabbing Dragon with a sort of mechanical hand.

At that point, Dragon – like a large ship arriving in port with the help of tugboats – is in the hands of external operators. At the ISS, Canadarm2 essentially flips itself around with Dragon still attached, carefully and slowly mating the spacecraft with one of the station’s free berthing ports. Unlike docking ports, the active part of a berthing port is located on the station’s receiving end, where electromechanical latches and bolts permanently secure the spacecraft to the station and ensure a vacuum seal.

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Finally, once berthing is fully complete, ISS astronauts can manually open Dragon’s hatch, giving them access to the two or so metric tons (~4000 lb) of cargo typically contained within. All told, the process of berthing is relatively intensive and expensive in terms of the amount of time station astronauts and NASA ground control must spend to complete a single resupply mission. From start to finish, excluding training, berthing takes a crew of two station astronauts some 9-12 hours of near-continuous work from spacecraft approach to hatch open.

Crew Dragon approaches the ISS during its orbital launch debut on March 3rd, 2019. (NASA)

One definite benefit of the docking approach Crew Dragon and Cargo Dragon 2 will use is just how fast it is compared to berthing. Because docking is fundamentally autonomous and controlled by the spacecraft instead of the station, it significantly reduces the workload placed on ISS astronauts. Crew members must, of course, remain vigilant and pay close attention during the critical approach period, particularly with uncrewed Cargo Dragon 2 spacecraft. However, the assumption is always that the spacecraft will independently perform almost all tasks related to docking, short of actually offloading cargo and crew.

For now, CRS-20 will likely be SpaceX’s last uncrewed NASA cargo mission for at six months. CRS-21 – Cargo Dragon 2’s launch debut – is currently scheduled no earlier than (NET) Q4 2020. Nevertheless, Crew Dragon’s next launch – also its astronaut launch debut – could lift off as early as May 2020, just two months from now. With both SpaceX’s crew and cargo missions soon to consolidate around a single spacecraft, the odds are good that Dragon 2 will wind up flying far more than Dragon 1, and the start of its increasingly common launches is just around the corner.

Cargo Dragon 1’s final space station approach and berthing, in photos. (NASA)

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Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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Tesla Robotaxi service in Austin achieves monumental new accomplishment

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Credit: Tesla

Tesla Robotaxi services in Austin have been operating since last Summer, but Tesla has admittedly been delayed in its expansion of the geofence, fleet size, and other details in a bid to prioritize safety as new technology rolls out.

But those barriers are being broken with new guardrails being removed from the program.

Tesla has achieved a significant advancement in its autonomous ride-hailing program. As of May 4, the Robotaxi fleet in Austin, Texas, has begun operating unsupervised during evening hours for the first time. This expansion moves beyond previous limitations that restricted unsupervised service to daylight hours, typically ending in mid-afternoon.

The change brings Austin in line with operations in Dallas and Houston. Those cities have supported evening unsupervised runs since their initial launches in April, and both recently received additions of new unsupervised vehicles to their fleets. This coordinated progress across Texas strengthens Tesla’s regional presence and provides a broader testing ground for the technology.

This milestone carries substantial weight in the development of autonomous vehicles. Extending operations into low-light conditions meaningfully expands the Robotaxi’s operational design domain (ODD)—the specific environments and scenarios in which the system is approved to operate safely without human intervention.

Nighttime driving presents unique technical demands: diminished visibility, headlight glare from oncoming traffic, reduced contrast for identifying pedestrians and lane markings, and greater variability in camera sensor exposure.

Tesla Cybercab just rolled through Miami inside a glass box

Tesla’s pure vision approach, powered by neural networks trained on vast real-world datasets rather than lidar or pre-mapped routes, must handle these variables reliably. Demonstrating consistent unsupervised performance after sunset validates the robustness of the end-to-end AI stack and its ability to generalize across diverse lighting conditions.

Beyond technical validation, the expansion holds important operational and economic implications. Evening hours often coincide with peak urban demand for rides, including commutes, dining, and entertainment outings.

Enabling service during these periods increases daily vehicle utilization, allowing each Robotaxi to generate more revenue while gathering additional high-value training data. Higher utilization accelerates the virtuous cycle of data collection, model improvement, and further ODD growth.

Looking ahead, this step paves the way for more ambitious rollouts. Success in low-light environments positions Tesla to pursue near-24-hour operations, potentially integrating highways and expanding into varied weather patterns. Regulators worldwide frequently demand evidence of safe performance across day-night cycles before granting wider approvals.

Proven capability in Texas could expedite deployments in planned cities such as Phoenix, Miami, Orlando, Tampa, and Las Vegas during the first half of 2026.

Tesla confirms Robotaxi expansion plans with new cities and aggressive timeline

Moreover, scaling evening service supports Tesla’s long-term vision of a high-efficiency robotaxi network. Greater fleet productivity lowers the cost per mile, making autonomous mobility more accessible and competitive against traditional ride-hailing.

As the company iterates on software updates informed by nighttime data, reliability is expected to compound rapidly, unlocking denser urban coverage and longer-distance trips.

In summary, the introduction of an unsupervised evening Robotaxi service in Austin represents more than an incremental schedule adjustment. It signals a critical maturation of the underlying technology and sets the foundation for broader geographic and temporal expansion.

With Texas operations gaining momentum, Tesla is steadily advancing toward transforming urban transportation at scale.

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Tesla Cybercab just rolled through Miami inside a glass box

Tesla paraded a Cybercab in a glass display at Miami’s F1 Grand Prix event this week.

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Tesla Cybercab at the Miami F1 Fan Fest 2026: Credit: TESLARATI

Tesla set up an “Autonomy Pop-Up” at Lummus Park in Miami Beach from April 29 through May 3, 2026, embedded within the official F1 Miami Grand Prix Fan Fest.  The centerpiece was a Cybertruck towing the Cybercab inside a glass display case marked “Future is Autonomous,” rolling through the beachfront crowd.

Miami is on Tesla’s confirmed list of cities for robotaxi expansion in the first half of 2026, making the promotion a strategic promotion that lays groundwork in a target market.

This was not Tesla’s first time using Miami as a showcase city. In December 2025, Tesla hosted “The Future of Autonomy Visualized” at its Miami Design District showroom, coinciding with Art Basel Miami Beach. That event featured the Cybercab prototype and Optimus robots interacting with attendees. The F1 pop-up this week marks Tesla’s return to Miami and follows a pattern Tesla has been running since early 2026. Just two weeks before Miami, Tesla stationed Optimus at the Tesla Boston Boylston Street showroom on April 19 and 20, directly on the final stretch of the Boston Marathon, letting tens of thousands of runners and spectators meet the robot for free, generating massive earned media at zero advertising cost.

Tesla is sending its humanoid Optimus robot to the Boston Marathon

Tesla has confirmed plans to expand its robotaxi service to seven cities in the first half of 2026, including Dallas, Houston, Phoenix, Miami, Orlando, Tampa, and Las Vegas, building on the unsupervised service already running in Austin. Musk has said he expects robotaxis to cover between a quarter and half of the United States by end of year. On the production side, Musk told shareholders that the Cybercab manufacturing process could eventually produce up to 5 million vehicles per year, targeting a cycle time of one unit every ten seconds. Scaling robotaxis to 10 million operational units over the next ten years is a key condition of his compensation package, alongside selling 20 million passenger vehicles.

As for the Cybercab’s price, Musk has said buyers will be able to purchase one for under $30,000, with an average operating cost around $0.20 per mile. Whether those numbers hold through full production remains to be seen.

Cybercab at F1 Fan Fest in Miami
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Tesla Semi gets new product launch as mass manufacturing hits Plaid Mode

While the 1.2 MW Megacharger handles quick 30-minute en-route boosts, the Basecharger serves as a reliable overnight solution for longer dwell times at warehouses, distribution centers, fleet yards, and even, potentially, homes.

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Credit: Tesla

The Tesla Semi is getting a new production launch as mass manufacturing on the all-electric truck is gearing up to hit Plaid Mode.

Tesla has introduced a game-changing addition to its commercial charging lineup with the new 125 kW Basecharger for Semi. Launched this week as part of the new “Semi Charging for Business” program, this compact unit is purpose-built for depot and overnight charging of Tesla Semi trucks.

While the 1.2 MW Megacharger handles quick 30-minute en-route boosts, the Basecharger serves as a reliable overnight solution for longer dwell times at warehouses, distribution centers, fleet yards, and even, potentially, homes.

Delivering up to 60 percent of the Semi’s range in roughly four hours, perfect for overnight top-ups during mandated driver rest periods or while trucks are loaded or unloaded. Its fully integrated design eliminates the need for bulky separate AC-to-DC cabinets.

Tesla engineers tucked one of the power modules from a V4 Supercharger Cabinet directly inside the sleek post, resulting in a compact footprint. It also features a six-meter cable for layout flexibility. This is one thing that must have been learned through the V4 Supercharger rollout.

Installation and operating costs drop dramatically thanks to daisy-chaining. Up to three Basechargers can share a single 125 kVA breaker, slashing electrical infrastructure requirements. The unit outputs 150 amps continuous across an 180–1,000 VDC range, matching the Semi’s high-voltage architecture while supporting the MCS 3.2 standard.

Tesla Semi sends clear message to Diesel rivals with latest move

Priced from $40,000 for a minimum order of two units, the Basecharger is far more affordable than the $188,000 Megacharger setup for two posts. Deliveries begin in early 2027. Buyers also receive Tesla’s full network-level software, remote monitoring, maintenance, and a guaranteed 97 percent or higher uptime—critical for fleet reliability.

This launch arrives as Tesla accelerates high-volume Semi production at its Nevada factory, targeting 50,000 units annually. By pairing affordable depot charging with ultra-fast highway options, Tesla removes one of the biggest obstacles to electrifying Class 8 trucking: infrastructure cost and complexity.

Fleet operators stand to gain lower electricity rates during off-peak hours, dramatically reduced maintenance compared to diesel, and quieter yards at night. The Basecharger isn’t just another charger—it’s the practical bridge that makes large-scale electric semi adoption economically viable.

With the Basecharger handling “home” duties and Megachargers powering the road, Tesla is delivering a complete ecosystem that could finally tip the scales toward zero-emission freight. For trucking companies ready to go electric, the future just got a whole lot more charger-friendly.

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