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SpaceX competitor ULA readies for final launch of 30-year-old Delta II rocket
Long-time SpaceX competitor United Launch Alliance (ULA) is nearly ready for the final launch of its Boeing subsidiary’s Delta II family of rockets, culminating a nearly 30-year history mostly dominated by routine success.
If completed without failure, the launch of NASA’s ICESat-2 satellite – built to track global ice-sheet variation with a huge space-based laser – will mark Delta II’s 100th consecutive success and the rocket’s 153rd fully successful launch overall, an immensely impressive and laudable achievement regardless of the vehicle’s lack of competitive advantage in the modern launch industry.
A teary farewell to Delta II this weekend, so in the run up we're going to give her a send off with a trip down memory lane per the vehicle's evolution from Thor.
Standby for a 7,000 word (yep!) feature article from William Graham on Thursday, with a ton of cool info/old photos. pic.twitter.com/g43PS6kHcr
— NSF – NASASpaceflight.com (@NASASpaceflight) September 13, 2018
Shockingly tiny when compared with modern launch vehicles like Delta IV, Atlas V, and Falcon 9, Delta II measures roughly 39 meters (~128 ft) tall, 2.4 meters (8 ft) in diameter, and weighs 160 metric tons (~350,000 lb) when fully fueled, just over half as tall and significantly less than 30% as heavy as SpaceX’s Falcon 9.
Contracted by NASA in 2013, Delta II’s ICESat-2 launch cost the agency roughly $97 million (2013 USD), although the cost of launch has shrunk in relation to the satellite, which suffered at least $200 million of overruns and 12+ months of delays due to difficulties developing the spacecraft’s impressive space-based LIDAR system. For comparison, NASA contracted a Falcon 9 launch (for the TESS exoplanet observatory, launched in April 2018) from SpaceX for $87 million in 2016, while the USAF has secured several launch contracts with SpaceX for far more complex GPS satellite launches at a cost of almost exactly $97 million apiece.
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- The final Delta II rocket is awaiting its last launch from Vandenberg Air Force Base this Saturday. (NASA/Randy Beaudoin)
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- A Delta II Heavy rocket seen launching NASA’s THEMIS satellite in 2007. (NASA)
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- Falcon 9 Block 5 booster B1049 returned to Port Canaveral today, ~60 hours after launch. Falcon 9 is dramatically cheaper than the aging Delta II. (Tom Cross)
Aging rockets, changing markets
Put simply, the contrast in capabilities offered for equivalent prices soundly demonstrates exactly why Delta II is being phased out. Although capable of better performance with a third upper stage and nine much larger solid rocket boosters (SRBs), that ‘Heavy’ variant of Delta II cost NASA an incredible $150 million per launch in 2009. For the versions of Delta II closer to $100 million per launch, the rocket is able to place 2500-3200 kg (5500-7000 lb) in low Earth orbit and not much at all to any higher energy destinations, which demand a third stage or a heavier rocket. At a comparable price (or much lower in SpaceX’s case), Atlas V and Falcon 9 are able to launch far larger payloads to far higher orbits.
This was by no means the case when Delta II debuted in 1989, and the McDonnell Douglas-built rocket readily earned its impressive reputation as a relatively reliable, capable, and (more or less) affordable launch vehicle compared alongside other rockets available in the ’90s. Delta II wound up as a ULA rocket (sort of) thanks to Boeing and McDonnell Douglas’ 1997 corporate merger, followed in 2006 by Lockheed Martin and Boeing’s cooperative formation of the United Launch Alliance. ULA thus operates Delta II, Delta IV, and Atlas V, all featuring multiple variants and very few distinguishing capabilities when compared amongst themselves.
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- Delta II is trucked to the launch pad ahead prior to launch. (NASA)
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- The business end of Delta II. (ULA)
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- ULA technicians install one of four solid rocket boosters on ICESat-2’s Delta II launch vehicle. (NASA)
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- ULA technicians install one of four solid rocket boosters on ICESat-2’s Delta II launch vehicle. (NASA)
The cost of maintaining all those highly duplicative rockets and unique factories and engineering expertise is fundamentally unnatural and reliant upon some sort of noncompetitive market forces (i.e. launch monopolies assured through “block buys” of multiple rockets from NASA and the US military), forces that have been mortally challenged by SpaceX’s reintroduction of competition to the American launch industry.
ICESat-2 is scheduled to launch on Delta II on Saturday, September 15th at 5:46 AM PDT/12:46 UTC. Stay tuned for more information on ICESat-2’s giant space LIDAR payload and mission goals, as well as Teslarati photographer Pauline Acalin’s photos of the fairly historic rocket launch.
For prompt updates, on-the-ground perspectives, and unique glimpses of SpaceX’s rocket recovery fleet check out our brand new LaunchPad and LandingZone newsletters!
Elon Musk
Tesla Full Self-Driving’s newest behavior is the perfect answer to aggressive cars
According to a recent video, it now appears the suite will automatically pull over if there is a tailgater on your bumper, the most ideal solution for when a driver is riding your bumper.
Tesla Full Self-Driving appears to have a new behavior that is the perfect answer to aggressive drivers.
According to a recent video, it now appears the suite will automatically pull over if there is a tailgater on your bumper, the most ideal solution for when a driver is riding your bumper.
With FSD’s constantly-changing Speed Profiles, it seems as if this solution could help eliminate the need to tinker with driving modes from the person in the driver’s seat. This tends to be one of my biggest complaints from FSD at times.
A video posted on X shows a Tesla on Full Self-Driving pulling over to the shoulder on windy, wet roads after another car seemed to be following it quite aggressively. The car looks to have automatically sensed that the vehicle behind it was in a bit of a hurry, so FSD determined that pulling over and letting it by was the best idea:
Tesla appears to be implementing some sort of feature that will now pull over if someone is tailgating you to let the car by
Really cool feature, definitely get a lot of this from those who think they drive race cars
— TESLARATI (@Teslarati) February 26, 2026
We can see from the clip that there was no human intervention to pull over to the side, as the driver’s hands are stationary and never interfere with the turn signal stalk.
This can be used to override some of the decisions FSD makes, and is a great way to get things back on track if the semi-autonomous functionality tries to do something that is either unneeded or not included in the routing on the in-car Nav.
FSD tends to move over for faster traffic on the interstate when there are multiple lanes. On two-lane highways, it will pass slower cars using the left lane. When faster traffic is behind a Tesla on FSD, the vehicle will move back over to the right lane, the correct behavior in a scenario like this.
Perhaps one of my biggest complaints at times with Full Self-Driving, especially from version to version, is how much tinkering Tesla does with Speed Profiles. One minute, they’re suitable for driving on local roads, the next, they’re either too fast or too slow.
When they are too slow, most of us just shift up into a faster setting, but at times, even that’s not enough, see below:
What has happened to Mad Max?
At one point it was going 32 in a 35. Traffic ahead had pulled away considerably https://t.co/bjKvaMVTNX pic.twitter.com/aaZSWmLu5v
— TESLARATI (@Teslarati) January 24, 2026
There are times when it feels like it would be suitable for the car to just pull over and let the vehicle that is traveling behind pass. This, at least up until this point, it appears, was something that required human intervention.
Now, it looks like Tesla is trying to get FSD to a point where it just knows that it should probably get out of the way.
Elon Musk
Tesla Megapack powers $1.1B AI data center project in Brazil
By integrating Tesla’s Megapack systems, the facility will function not only as a major power consumer but also as a grid-supporting asset.
Tesla’s Megapack battery systems will be deployed as part of a 400MW AI data center campus in Uberlândia, Brazil. The initiative is described as one of Latin America’s largest AI infrastructure projects.
The project is being led by RT-One, which confirmed that the facility will integrate Tesla Megapack battery energy storage systems (BESS) as part of a broader industrial alliance that includes Hitachi Energy, Siemens, ABB, HIMOINSA, and Schneider Electric. The project is backed by more than R$6 billion (approximately $1.1 billion) in private capital.
According to RT-One, the data center is designed to operate on 100% renewable energy while also reinforcing regional grid stability.
“Brazil generates abundant energy, particularly from renewable sources such as solar and wind. However, high renewable penetration can create grid stability challenges,” RT-One President Fernando Palamone noted in a post on LinkedIn. “Managing this imbalance is one of the country’s growing infrastructure priorities.”
By integrating Tesla’s Megapack systems, the facility will function not only as a major power consumer but also as a grid-supporting asset.
“The facility will be capable of absorbing excess electricity when supply is high and providing stabilization services when the grid requires additional support. This approach enhances resilience, improves reliability, and contributes to a more efficient use of renewable generation,” Palamone added.
The model mirrors approaches used in energy-intensive regions such as California and Texas, where large battery systems help manage fluctuations tied to renewable energy generation.
The RT-One President recently visited Tesla’s Megafactory in Lathrop, California, where Megapacks are produced, as part of establishing the partnership. He thanked the Tesla team, including Marcel Dall Pai, Nicholas Reale, and Sean Jones, for supporting the collaboration in his LinkedIn post.
Elon Musk
Starlink powers Europe’s first satellite-to-phone service with O2 partnership
The service initially supports text messaging along with apps such as WhatsApp, Facebook Messenger, Google Maps and weather tools.
Starlink is now powering Europe’s first commercial satellite-to-smartphone service, as Virgin Media O2 launches a space-based mobile data offering across the UK.
The new O2 Satellite service uses Starlink’s low-Earth orbit network to connect regular smartphones in areas without terrestrial coverage, expanding O2’s reach from 89% to 95% of Britain’s landmass.
Under the rollout, compatible Samsung devices automatically connect to Starlink satellites when users move beyond traditional mobile coverage, according to Reuters.
The service initially supports text messaging along with apps such as WhatsApp, Facebook Messenger, Google Maps and weather tools. O2 is pricing the add-on at £3 per month.
By leveraging Starlink’s satellite infrastructure, O2 can deliver connectivity in remote and rural regions without building additional ground towers. The move represents another step in Starlink’s push beyond fixed broadband and into direct-to-device mobile services.
Virgin Media O2 chief executive Lutz Schuler shared his thoughts about the Starlink partnership. “By launching O2 Satellite, we’ve become the first operator in Europe to launch a space-based mobile data service that, overnight, has brought new mobile coverage to an area around two-thirds the size of Wales for the first time,” he said.
Satellite-based mobile connectivity is gaining traction globally. In the U.S., T-Mobile has launched a similar satellite-to-cell offering. Meanwhile, Vodafone has conducted satellite video call tests through its partnership with AST SpaceMobile last year.
For Starlink, the O2 agreement highlights how its network is increasingly being integrated into national telecom systems, enabling standard smartphones to connect directly to satellites without specialized hardware.
Tesla Full Self-Driving’s newest behavior is the perfect answer to aggressive cars
Tesla Megapack powers $1.1B AI data center project in Brazil
