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Each of those three rocket nozzles is roughly 2.5m (8 feet) across, plenty of room for all but the tallest humans to stand up in. Each of those three rocket nozzles is roughly 2.5m (8 feet) across, plenty of room for all but the tallest humans to stand up in.

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ULA Delta IV Heavy rocket set for National Reconnaissance Office spysat launch

The United Launch Alliance (ULA) Delta IV Heavy rocket stands ready ahead of the launch of NASA’s Parker Solar Probe from SLC-37 in 2018 . (United Launch Alliance)

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The massive United Launch Alliance (ULA) Delta IV Heavy rocket last launched from Space Launch Complex 37 (SLC-37) at Cape Canaveral Air Force Station in August of 2018 when it lifted NASA’s Parker Solar Probe to a highly-elliptical, heliocentric orbit on a mission to “touch the Sun.”

Two years later, ULA is ready to light its most impressive candle once again for its next launch campaign, NROL-44. This time around the protective payload fairing of the Delta IV Heavy rocket is packed with a sensitive – and highly classified – payload for the National Reconnaissance Office (NRO). The NRO is an office of national security that oversees a fleet of spy satellites for the United States government. Since becoming operational in 2004, ULA’s Delta IV Heavy rocket has completed eleven operational missions, seven of which were classified missions for the NRO.

The United Launch Alliance Delta IV Heavy rocket awaits payload integration on the launch pad of Space Launch Complex 37 at Cape Canaveral Air Force Station in Florida. (Richard Angle)

A long launch campaign

The NROL-44 launch campaign has been a long one, to say the least. The three Delta IV common core boosters were delivered to ULA’s Horizontal Integration Facility during the summer of 2019. There the boosters were integrated with one another while the forward end of the center booster was mated with the Delta Cryogenic Second Stage (DCSS). The DCSS is outfitted with a single Aerojet Rocketdyne RL10B-2 engine capable of 24,750 lbf of thrust used to propel the secretive payload to orbit once the common core boosters have separated.

In November 2019, the rocket was rolled to the SLC-37 Vertical Integration Facility and raised by ULA’s Fixed Pad Erector into a vertical position to await the integration of its precious payload. In January 2020, ULA completed pre-launch initiatives including standard testing and a complete Wet Dress Rehearsal of Day of Launch activities involving fueling and de-tanking of the liquid hydrogen and liquid oxygen propellants. Since then, the Delta IV Heavy has remained safed and in powered-off status.

A United Launch Alliance (ULA) Delta IV Heavy rocket is transported from the Horizontal Integration Facility to Space Launch Complex-37 on Nov. 14, 2019 in preparation to launch the NROL-44 mission for the National Reconnaissance Office in 2020. Photo credit: United Launch Alliance
The three nozzles of the Delta IV Heavy Aerojet Rocketdyne RS-68A main engines are seen wrapped with protective coverings at Space Launch Complex 37 at Cape Canaveral Air Force Station in Florida. (Richard Angle)

Following the recent successful launch of NASA’s Perseverance Mars rover on a neighboring ULA Atlas V just weeks ago, ULA is ready to ignite Delta IV Heavy’s three Aerojet Rocketdyne RS-68A main engines to complete one of the rocket’s remaining final five flights as it nears retirement.

On July 27, the Delta IV Heavy was outfitted with a 5-meter payload fairing safely encapsulating the NROL-44 payload. The massive payload fairing was delivered to SLC-37, raised, and mounted to the top of the center booster and fully integrated DCSS via crane. The mated payload completes the 235 feet (72 meters) tall full stack of the Delta IV Heavy rocket which will weigh in at 1.6 million pounds (725,750 kg) once fueled before lift-off.

Reliability worth the cost

In a company blog post, ULA’s launch operations director and general manager, Tony Taliancich said, “The Heavy serves the nation’s high-priority U.S. Space Force and National Reconnaissance Office space programs with distinction as America’s proven heavy-lifter.” Although reliable, the Delta IV Heavy is very costly to fly costing nearly $300 million a launch. The heavy class launcher is almost exclusively chosen to fly missions for the U.S. government with the exception of a few NASA missions – Parker Solar Probe and the Orion capsule Exploration Flight Test -1. The five remaining flights of its career are all contracted to lift payloads for the NRO through 2023.

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ULA is currently targeting 2:16 am EDT (0616 UTC) on Wednesday, August 26 for the launch of the Delta IV Heavy, however, tropical weather approaching the Florida peninsula is being closely monitored. Should there be any, ULA will publish all updates to the mission timeline on the company’s blog.

Space Reporter.

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Starlink achieves major milestones in 2025 progress report

Starlink wrapped up 2025 with impressive growth, adding more than 4.6 million new active customers and expanding service to 35 additional countries, territories, and markets.

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Credit: Starlink/X

Starlink wrapped up 2025 with impressive growth, adding more than 4.6 million new active customers and expanding service to 35 additional countries, territories, and markets. The company also completed deployment of its first-generation Direct to Cell constellation, launching over 650 satellites in just 18 months to enable cellular connectivity.

SpaceX highlighted Starlink’s impressive 2025 progress in an extensive report.

Key achievements from Starlink’s 2025 Progress

Starlink connected over 4.6 million new customers with high-speed internet while bringing service to 35 more regions worldwide in 2025. Starlink is now connecting 9.2 million people worldwide. The service achieved this just weeks after hitting its 8 million customer milestone.

Starlink is now available in 155 markets, including areas that are unreachable by traditional ISPs. As per SpaceX, Starlink has also provided over 21 million airline passengers and 20 million cruise passengers with reliable high-speed internet connectivity during their travels.

Starlink Direct to Cell

Starlink’s Direct to Cell constellation, more than 650 satellites strong, has already connected over 12 million people at least once, marking a breakthrough in global mobile coverage.
Starlink Direct to Cell is currently rolled out to 22 countries and 6 continents, with over 6 million monthly customers. Starlink Direct to Cell also has 27 MNO partners to date.

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This year, SpaceX completed deployment of the first generation of the Starlink Direct to Cell constellation, with more than 650 satellites launched to low-Earth orbit in just 18 months. Starlink Direct to Cell has connected more than 12 million people, and counting, at least once, providing life-saving connectivity when people need it most,” SpaceX wrote.

starlinkProgressReport_2025 by Simon Alvarez

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Tesla Giga Nevada celebrates production of 6 millionth drive unit

To celebrate the milestone, the Giga Nevada team gathered for a celebratory group photo. 

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Tesla’s Giga Nevada has reached an impressive milestone, producing its 6 millionth drive unit as 2925 came to a close.

To celebrate the milestone, the Giga Nevada team gathered for a celebratory group photo. 

6 million drive units

The achievement was shared by the official Tesla Manufacturing account on social media platform X. “Congratulations to the Giga Nevada team for producing their 6 millionth Drive Unit!” Tesla wrote. 

The photo showed numerous factory workers assembled on the production floor, proudly holding golden balloons that spelled out “6000000″ in front of drive unit assembly stations. Elon Musk gave credit to the Giga Nevada team, writing, “Congrats on 6M drive units!” in a post on X.

Giga Nevada’s essential role

Giga Nevada produces drive units, battery packs, and energy products. The facility has been a cornerstone of Tesla’s scaling since opening, and it was the crucial facility that ultimately enabled Tesla to ramp the Model 3 and Model Y. Even today, it serves as Tesla’s core hub for battery and drivetrain components for vehicles that are produced in the United States.

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Giga Nevada is expected to support Tesla’s ambitious 2026 targets, including the launch of vehicles like the Tesla Semi and the Cybercab. Tesla will have a very busy 2026, and based on Giga Nevada’s activities so far, it appears that the facility will be equally busy as well.

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Tesla Supercharger network delivers record 6.7 TWh in 2025

The network now exceeds 75,000 stalls globally, and it supports even non-Tesla vehicles across several key markets.

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tesla-diner-supercharger
Credit: Tesla

Tesla’s Supercharger Network had its biggest year ever in 2025, delivering a record 6.7 TWh of electricity to vehicles worldwide. 

To celebrate its busy year, the official @TeslaCharging account shared an infographic showing the Supercharger Network’s growth from near-zero in 2012 to this year’s impressive milestone.

Record 6.7 TWh delivered in 2025

The bar chart shows steady Supercharger energy delivery increases since 2012. Based on the graphic, the Supercharger Network started small in the mid-2010s and accelerated sharply after 2019, when the Model 3 was going mainstream. 

Each year from 2020 onward showed significantly more energy delivery, with 2025’s four quarters combining for the highest total yet at 6.7 TWh.

This energy powered millions of charging sessions across Tesla’s growing fleet of vehicles worldwide. The network now exceeds 75,000 stalls globally, and it supports even non-Tesla vehicles across several key markets. This makes the Supercharger Network loved not just by Tesla owners but EV drivers as a whole.

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Resilience after Supercharger team changes

2025’s record energy delivery comes despite earlier 2024 layoffs on the Supercharger team, which sparked concerns about the system’s expansion pace. Max de Zegher, Tesla Director of Charging North America, also highlighted that “Outside China, Superchargers delivered more energy than all other fast chargers combined.”

Longtime Tesla owner and FSD tester Whole Mars Catalog noted the achievement as proof of continued momentum post-layoffs. At the time of the Supercharger team’s layoffs in 2024, numerous critics were claiming that Elon Musk was halting the network’s expansion altogether, and that the team only remained because the adults in the room convinced the juvenile CEO to relent.

Such a scenario, at least based on the graphic posted by the Tesla Charging team on X, seems highly implausible. 

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