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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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5 years ago

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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.

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“Worthy of respect:” Six-seat Model Y L acknowledged by Tesla China’s biggest rivals

Tesla China’s biggest competitors seem to be welcoming the impending arrival of the upcoming six-seater.

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45 minutes ago

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July 17, 2025

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Credit: Tesla Asia/X

Tesla’s upcoming launch of the Model Y L in China has drawn praise from the CEOs of rival automakers Nio and Li Auto. While the upcoming extended all-electric crossover has the potential to make a huge impact in the domestic Chinese auto market, some of Tesla China’s biggest competitors seem to be welcoming the impending arrival of the upcoming six-seater.

NIO and Li Auto CEO react

Nio founder, chairman, and CEO William Li responded to Tesla’s announcement on Weibo, stating that with improvements in charging, battery swap infrastructure, and continued innovation in technology and product design, the era of large-space electrified SUVs has fully arrived. He referenced Nio’s sub-brand Onvo and its new L90 SUV as a product born from this shift in the market and encouraged the industry to “power up together,” as noted in a report from CNEV Post.

Li Auto CEO Li Xiang also weighed in, calling the Model Y L a “six-seat pure electric SUV worthy of respect.” He also suggested that consumers interested in vehicles priced between RMB 200,000 and RMB 300,000 should keep an eye on it. He also mentioned his company’s upcoming Li i6, a five-seat all-electric SUV that’s expected to debut in September, as a strong option for buyers not seeking third row seats.

New Model Y L

Tesla confirmed on its official Weibo account that the Model Y L will officially launch in China this fall. The vehicle appeared in China’s MIIT regulatory catalog, which revealed that the Model Y L will feature a longer body and extended wheelbase designed to accommodate its new three-row layout. 

The Model Y L measures 4,976 mm in length with a wheelbase of 3,040 mm, compared to the standard five-seat Model Y’s 4,797 mm length and 2,890 mm wheelbase. While Tesla has yet to announce official pricing, industry reports suggest it could be positioned around RMB 400,000. It remains to be seen if the Model Y L will also be produced in the United States and Germany. 

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Elon Musk

Elon Musk reveals SpaceX’s target for Starship’s 10th launch

Elon Musk has revealed SpaceX’s target timeline for the next Starship launch, which will be the tenth in program history.

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13 hours ago

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July 16, 2025

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Credit: SpaceX

Elon Musk has revealed SpaceX’s target timeline for the next Starship launch, which will be the tenth in program history.

Musk says SpaceX is aiming for a timeline of roughly three weeks from now, which would come about ten weeks after the previous launch.

Coincidentally, it would bring the two launches 69 days apart, and if you know anything about Elon Musk, that would be an ideal timeline between two launches.

SpaceX is coming off a test flight in which it lost both the Super Heavy Booster and the Upper Stage in the previous launch. The Super Heavy Booster was lost six minutes and sixteen seconds into the flight, while SpaceX lost communication with the Ship at 46 minutes and 48 seconds.

Musk is aiming for the tenth test flight to take place in early August, he revealed on X:

This will be SpaceX’s fourth test flight of the Starship program in 2025, with each of the previous three flights bringing varying results.

IFT-7 in January brought SpaceX its second successful catch of the Super Heavy Booster in the chopstick arms of the launch tower. The ship was lost after exploding during its ascent over the Turks and Caicos Islands.

IFT-8 was on March 6, and SpaceX caught the booster once again, but the Upper Stage was once again lost.

The most recent flight, IFT-9, took place on May 27 and featured the first reused Super Heavy Booster. However, both the Booster and Upper Stage were lost.

The Federal Aviation Administration (FAA) hit SpaceX with a mishap investigation for Flight 9 on May 30.

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Elon Musk

Elon Musk confirms Tesla is already rolling out a new feature for in-car Grok

Tesla is already making in-car Grok more robust with a simple but effective feature that CEO Elon Musk says is “coming.”

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20 hours ago

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July 16, 2025

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Credit: Tesla

Tesla CEO Elon Musk has confirmed that the company will roll out a new feature for in-car Grok as it is rolling out to vehicles for the first time.

Grok was just recently added as a feature to Tesla vehicles within the past week, but owners are already requesting some small changes to make it more convenient to use.

Tesla debuts hands-free Grok AI with update 2025.26: What you need to know

The first is already on the way, Musk confirmed, as WholeMarsBlog requested a simple, but useful feature for Grok as it is used within Tesla vehicles.

Whole Mars requested that “Hey Grok” be used as a wake word, automatically activating the AI assistant without having to touch any buttons. Musk confirmed it is already in development and on the way to vehicles:

This feature is incredibly similar to that of “Hey Siri” with iPhones and other iOS devices. The phone will recognize your voice and hear that prompt, automatically activating Siri. Apple’s assistant will then perform whatever task it is asked to perform. It’s a simple but effective performance feature.

Grok is already getting its first reviews from owners as it rolls out to owners for the first time. It is a long time coming, too. Tesla has been hinting that Grok would be enabled in the vehicles for a while now, and it just started its initial rollout last week.

Grok is available in vehicles with the AMD chip and requires Premium Connectivity or a WiFi connection to use.

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