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SpaceX, NASA make history ahead of schedule as astronauts reach space station
Less than 19 hours after liftoff and almost 10 minutes ahead of schedule, SpaceX has successfully docked NASA astronauts to the International Space Station (ISS) for the first time in history, officially returning that capability to the space agency after nearly nine years without it.
Demo-2’s docking marks the first time a privately-developed orbital-class spacecraft has launched, reached orbit, and docked with the space station with astronauts onboard, completing a major foundation and taking the biggest step yet towards SpaceX’s founding goal of sustainably expanding humanity into space. Perhaps even more importantly, the milestone marks the first time US astronauts have traveled to or from the ISS on a domestic vehicle since the Space Shuttle’s last launch and landing in July 2011.
Due to a combination of Congressional ineptitude, systematic underfunding, NASA mismanagement, and delays to Commercial Crew partners Boeing and SpaceX, that domestic access gap has lasted the better part of a decade. Now, if Crew Dragon continues to perform nominally in orbit and SpaceX’s Dragon and Falcon production and qualification continues apace, the company could proceed to its second astronaut launch and first operational NASA crew transport mission just a few months from now.
Impressively, Crew Dragon’s inaugural astronaut launch has gone off with no notable issues with the spacecraft or rocket. Aside from a lone Draco maneuvering thruster showing an out-of-family temperature sensor reading shortly after reaching orbit, no other glitches have been noted on NASA and SpaceX’s uninterrupted webcast.
In the last hour or two, however, SpaceX did call up to astronaut Bob Behnken to determine the cause of a spacesuit pressure reading slightly below nominal, although the ground controller made sure to clarify that the suit would have still done its job in the event of Crew Dragon cabin depressurization. By the sound of it, Bob observed a zipper tooth out of place on several seams, pointing to a fairly mundane source of the issue. More recently, NASA has been working to establish wired (“hard-line”) communications between the docked Crew Dragon spacecraft and the ISS without much luck, while “interference issues” were raised as a possible explanation. It’s unclear if the problem is deriving from Dragon or the ISS.
On the scale of human spaceflight, wired communications issues – while radio communications links remain strong and functional – are about as mild as they come. Bob and Doug remained in regular contact with NASA and SpaceX ground controllers and did their best to help troubleshoot the wired communication bugs while eating dinner and waiting patiently for NASA’s lone ISS crew member to complete the final steps before hatch opening.
During the webcast, SpaceX predicted that Crew Dragon’s hatch would be opened around 12:15 pm EDT (16:15 UTC), allowing Bob and Doug to board the International Space Station (ISS) and marking the full completion of the arrival half of the historic spacecraft’s astronaut launch debut. Tune in below to watch as NASA’s first Commercial Crew Program (CCP) astronauts prepare to open Crew Dragon’s hatch and complete their ISS arrival.
-->Check out Teslarati’s Marketplace! We offer Tesla accessories, including for the Tesla Cybertruck and Tesla Model 3.
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Elon Musk makes a key Tesla Optimus detail official
“Since we are naming the singular, we will also name the plural, so Optimi it is,” Musk wrote on X.
Tesla CEO Elon Musk just made a key detail about Optimus official. In a post on X, the CEO clarified some key wording about Optimus, which should help the media and the public become more familiar with the humanoid robot.
Elon Musk makes Optimus’ plural term official
Elon Musk posted a number of Optimus-related posts on X this weekend. On Saturday, he stated that Optimus would be the Von Neumann probe, a machine that could eventually be capable of replicating itself. This capability, it seems, would be the key to Tesla achieving Elon Musk’s ambitious Optimus production targets.
Amidst the conversations about Optimus on X, a user of the social media platform asked the CEO what the plural term for the humanoid robot will be. As per Musk, Tesla will be setting the plural term for Optimus since the company also decided on the robot’s singular term. “Since we are naming the singular, we will also name the plural, so Optimi it is,” Musk wrote in his reply on X.
This makes it official. For media outlets such as Teslarati, numerous Optimus bots are now called Optimi. It rolls off the tongue pretty well, too.
Optimi will be a common sight worldwide
While Musk’s comment may seem pretty mundane to some, it is actually very important. Optimus is intended to be Tesla’s highest volume product, with the CEO estimating that the humanoid robot could eventually see annual production rates in the hundreds of millions, perhaps even more. Since Optimi will be a very common sight worldwide, it is good that people can now get used to terms describing the humanoid robot.
-->During the Tesla 2025 Annual Shareholder Meeting, Musk stated that the humanoid robot will see “the fastest production ramp of any product of any large complex manufactured product ever,” starting with a one-million-Optimi-per-year production line at the Fremont Factory. Giga Texas would get an even bigger Optimus production line, which should be capable of producing tens of millions of Optimi per year.
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Tesla is improving Giga Berlin’s free “Giga Train” service for employees
With this initiative, Tesla aims to boost the number of Gigafactory Berlin employees commuting by rail while keeping the shuttle free for all riders.
Tesla will expand its factory shuttle service in Germany beginning January 4, adding direct rail trips from Berlin Ostbahnhof to Giga Berlin-Brandenburg in Grünheide.
With this initiative, Tesla aims to boost the number of Gigafactory Berlin employees commuting by rail while keeping the shuttle free for all riders.
New shuttle route
As noted in a report from rbb24, the updated service, which will start January 4, will run between the Berlin Ostbahnhof East Station and the Erkner Station at the Gigafactory Berlin complex. Tesla stated that the timetable mirrors shift changes for the facility’s employees, and similar to before, the service will be completely free. The train will offer six direct trips per day as well.
“The service includes six daily trips, which also cover our shift times. The trains will run between Berlin Ostbahnhof (with a stop at Ostkreuz) and Erkner station to the Gigafactory,” Tesla Germany stated.
Even with construction continuing at Fangschleuse and Köpenick stations, the company said the route has been optimized to maintain a predictable 35-minute travel time. The update follows earlier phases of Tesla’s “Giga Train” program, which initially connected Erkner to the factory grounds before expanding to Berlin-Lichtenberg.
-->Tesla pushes for majority rail commuting
Tesla began production at Grünheide in March 2022, and the factory’s workforce has since grown to around 11,500 employees, with an estimated 60% commuting from Berlin. The facility produces the Model Y, Tesla’s best-selling vehicle, for both Germany and other territories.
The company has repeatedly emphasized its goal of having more than half its staff use public transportation rather than cars, positioning the shuttle as a key part of that initiative. In keeping with the factory’s sustainability focus, Tesla continues to allow even non-employees to ride the shuttle free of charge, making it a broader mobility option for the area.
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Tesla Model 3 and Model Y dominate China’s real-world efficiency tests
The Tesla Model 3 posted 20.8 kWh/100 km while the Model Y followed closely at 21.8 kWh/100 km.
Tesla’s Model 3 and Model Y once again led the field in a new real-world energy-consumption test conducted by China’s Autohome, outperforming numerous rival electric vehicles in controlled conditions.
The results, which placed both Teslas in the top two spots, prompted Xiaomi CEO Lei Jun to acknowledge Tesla’s efficiency advantage while noting that his company’s vehicles will continue refining its own models to close the gap.
Tesla secures top efficiency results
Autohome’s evaluation placed all vehicles under identical conditions, such as a full 375-kg load, cabin temperature fixed at 24°C on automatic climate control, and a steady cruising speed of 120 km/h. In this environment, the Tesla Model 3 posted 20.8 kWh/100 km while the Model Y followed closely at 21.8 kWh/100 km, as noted in a Sina News report.
These figures positioned Tesla’s vehicles firmly at the top of the ranking and highlighted their continued leadership in long-range efficiency. The test also highlighted how drivetrain optimization, software management, and aerodynamic profiles remain key differentiators in high-speed, cold-weather scenarios where many electric cars struggle to maintain low consumption.
Xiaomi’s Lei Jun pledges to continue learning from Tesla
Following the results, Xiaomi CEO Lei Jun noted that the Xiaomi SU7 actually performed well overall but naturally consumed more energy due to its larger C-segment footprint and higher specification. He reiterated that factors such as size and weight contributed to the difference in real-world consumption compared to Tesla. Still, the executive noted that Xiaomi will continue to learn from the veteran EV maker.
“The Xiaomi SU7’s energy consumption performance is also very good; you can take a closer look. The fact that its test results are weaker than Tesla’s is partly due to objective reasons: the Xiaomi SU7 is a C-segment car, larger and with higher specifications, making it heavier and naturally increasing energy consumption. Of course, we will continue to learn from Tesla and further optimize its energy consumption performance!” Lei Jun wrote in a post on Weibo.
-->Lei Jun has repeatedly described Tesla as the global benchmark for EV efficiency, previously stating that Xiaomi may require three to five years to match its leadership. He has also been very supportive of FSD, even testing the system in the United States.
Elon Musk makes a key Tesla Optimus detail official
Tesla is improving Giga Berlin’s free “Giga Train” service for employees
