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SpaceX preparing for third Starship ‘full stack’

Booster 4 and Ship 20 - March 13th, 2022. (NASASpaceflight - bocachicagal)

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3 years ago

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SpaceX appears to be preparing Starship 20 and Super Heavy Booster 4 for their third ‘full stack’ demonstration after two seemingly successful tests in August 2021 and February 2022.

The first, completed in early August 2021, was mostly for show and saw SpaceX stack the unfinished prototypes with a giant crane – fighting the coastal winds throughout. After just a few hours stacked, Ship 20 was removed and returned to Starbase, where workers spent several more weeks (mostly) finishing the prototype. Booster 4 followed suit several weeks later and ultimately took another three months of work to reach some level of test readiness.

After Ship 20 and Booster 4 completed a series of tests in the last few months of 2021 and early 2022, the two were re-stacked in mid-February – once again for show. This time, the stacked Starship served as a backdrop for SpaceX CEO Elon Musk’s first official Starship presentation in more than two years. However, despite the fact that neither prototype was actually tested during the second stack, SpaceX did use the opportunity to partially debut Starbase’s ‘orbital launch integration tower’ and used that towers trio of giant arms to lift, stack, and stabilize Starship S20 on top of Super Heavy B4.

The first stack. (SpaceX)
Stack #2.

Ship 20 was ‘destacked’ with the tower’s arms just a few days after Musk’s event – an undeniably rapid and impressive achievement for the first real use of the ‘chopstick’ arms but still far from demonstrating that Ship 20, Booster 4, or the orbital launch site (OLS) are ready for orbital test flights. Since then, however, Starbase’s launch facilities have admittedly been almost as busy as they’ve ever been with Starship and Super Heavy cryoproof tests.

Ship 20 completed its first basic OLS cryogenic proof test or ‘cryoproof’ just two days after it was destacked. Additional Starship S20 cryoproofs followed on February 17th (the day after), February 22nd, and March 3rd. Super Heavy B4 completed its own cryoproofs on February 18th and March 1st, the latter of which may have actually been the fullest a Starship booster has ever been filled. All told, SpaceX completed no less than six major B4/S20 cryoproof tests in 15 days.

https://twitter.com/NASASpaceflight/status/1494100158761648128

Crucially, all six cryoproofs were performed with Starbase’s nascent orbital tank farm, thoroughly testing its storage and distribution capabilities. Additionally, because SpaceX began liquid methane deliveries on February 13th, some of those tests – particularly with Ship 20 – may have even been proper wet dress rehearsals, meaning that SpaceX may have filled the rocket(s) with liquid methane (LCH4) and liquid oxygen (LOx) propellant to replicate preparations for a real launch.

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At a minimum, Super Heavy Booster 4’s oxidizer tank was fully filled with liquid oxygen – and possibly pressurized with hot gaseous oxygen – during its March 1st cryoproof, while its fuel tank was filled about two-thirds of the way either with liquid nitrogen (LN2) or methane. Prior to its February and March tests, Booster 4 had already completed three cryoproofs – some also using LOx – in December 2021. Ship 20 had completed a cryoproof and four static fire tests.

A six-engine Ship 20 static fire. (SpaceX)

All told, short of finally performing a full Super Heavy wet dress rehearsal and static fire at the orbital launch site, it’s not all that clear what more SpaceX can derive from additional individual cryoproof testing of Ship 20 or Booster 4. Several things do still need to be demonstrated, however. First, the OLS launch tower has yet to use its arms to remotely install a Super Heavy on the orbital launch mount. More importantly, SpaceX has yet to use the launch tower and its swinging ship umbilical arm to cryoproof or fuel a Starship while stacked on top of a Super Heavy. Finally, SpaceX has also yet to simultaneously perform a cryoproof or wet dress rehearsal test of a stacked Starship and Super Heavy, which will be necessary for orbital test flights.

One or several of those to-be-completed tests may be why SpaceX appears to have begun preparing to install Ship 20 on top of Booster 4 for the third time. On March 14th, Starship S20 was moved towards the launch tower and on March 15th, the ship was slotted between its ‘chopstick’ arms. Based on stack #2, the ship could be lifted at any point – day or night – and installed on top of Super Heavy in a matter of hours.

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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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Elon Musk

Tesla confirms rollout of critical feature, but Cybertruck misses out

Tesla’s S3XY lineup will get the Adaptive Headlights, but Cybertruck will not.

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6 hours ago

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April 17, 2025

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Credit: @jojje167 on X

Tesla has confirmed the rollout of a new, critical feature that is coming to the United States for the first time.

However, the Cybertruck will unfortunately miss out on it.

Tesla has a distinct advantage among many automakers as their Over-the-Air updates make their vehicles better over time. While many automakers have the ability to roll out new features through these updates, Tesla has been shown to be one of the companies that can truly make things significantly better with their cars.

A new feature coming to the United States and now rolling out is Adaptive Headlights. This feature will be applied to Model S, Model 3, Model X, and Model Y vehicles with the proper hardware.

Adaptive Headlights are different than your typical auto highbeams in the way that they can dim certain pixels of the bulb to keep visibility for the Tesla driver high, while eliminating glare for those who are in oncoming cars:

For the first time, Tesla is rolling out the feature to these vehicles in the United States. European Tesla owners were able to use the function several months back, but it was pending approval in the U.S.

At first, Tesla VP of Vehicle Engineering, Lars Moravy, said that the Cybertruck would have this feature. However, in late February, he confirmed that he was incorrect and the all-electric pickup will not have the ability to get Adaptive Headlights, as the company could not fit the correct hardware in the Cybertruck’s module:

The feature certainly makes visibility better for everyone on the road and will improve overall safety while eliminating the pesky and annoying feeling of being blinded by high beams.

The Adaptive Headlight feature for Tesla is part of the company’s Spring Update for 2025.

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Elon Musk

Tesla Model 3 wins ‘most economical EV to own’ title in new study

The Tesla Model 3 has captured another crown in a recent study showing the most cost-effective EVs

Published

10 hours ago

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April 17, 2025

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tesla model 3 driving on a wet road
(Credit: Tesla)

The Tesla Model 3 recently captured the title of “most economical electric vehicle to own” in a new study performed by research firm Zutobi.

Perhaps one of the biggest and most popular reasons people are switching to EVs is the cost savings. Combining home charging, lower maintenance costs, and tax credits has all enabled consumers to consider EVs as a way to save money on their daily drivers. However, there are some EVs that are more efficient and cost-effective than others.

Tesla police fleet saves nearly half a million in upkeep and repair costs

Zutobi‘s new study shows that EV cost-effectiveness comes at different levels. For example, some cars are simply better than others on a cost-per-mile basis. The study used a simple process to determine which EVs are more cost-effective than others by showing how much it would cost to drive 100 miles.

National averages for energy rates have been used to calculate the cost as they widely vary from state to state.

The Rear-Wheel Drive Tesla Model 3 was listed as the most economical vehicle in the study:

“The standard Tesla Model 3 is the most economical electric vehicle to drive in 2025. With a usable battery capacity of 57.5 kWh and a real-world range of 260 miles, it costs just $3.60 to drive 100 miles. That translates to an impressive 2,781 miles per $100 of electricity—making it the most efficient choice for EV owners nationwide.”

It had an estimated cost of just $3.60 to drive 100 miles.

The Tesla Model 3 Long Range All-Wheel Drive was second, the study showed:

“Next is the Long Range version of the Model 3, which offers extended range and dual-motor all-wheel drive. With a larger 75 kWh battery and 325 miles of range, the cost to drive 100 miles is slightly higher at $3.75, still equating to a strong 2,665 miles per $100.”

This version of the Model 3 had a price of just $3.75 to drive 100 miles.

In third, the BMW i4 eDrive35 surprised us with a cost of just $4.12 to drive 100 miles:

“Rounding out the top three is the BMW i4 eDrive35, with a 67.1 kWh battery and a real-world range of 265 miles. Drivers can expect to pay $4.12 per 100 miles, which still allows for 2,429 miles per $100—a solid choice for those seeking luxury and efficiency.”

Several other Teslas made the list as well. The Model 3 Performance ($4.34 per 100 miles) was sixth and tied with the Volkswagen ID.3 Pure, the Tesla Model S Long Range ($4.35 per 100 miles) was 8th, and the Tesla Model Y Long Range was ninth ($4.36 per 100 miles).

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Elon Musk

Tesla offers new discounts on Cybertruck inventory

Tesla is knocking up to $10,550 off of Cybertruck units in inventory

Published

11 hours ago

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April 17, 2025

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Credit: Tesla

Tesla is offering new discounts on Cybertruck units in inventory, giving customers a chance to snag a unit of the all-electric pickup for a slight reduction in price. Some are even coming with additional perks to make the offer even sweeter.

Tesla is now offering up to $10,550 off of Cybertruck inventory units across the United States. This is up from previous discounts of $6,000 on inventory Cybertrucks, and it will apply to 2024 model year vehicles.

Non-Foundation Series Cybertrucks are getting up to $10,550 off of their original prices, while Foundation Series pickups are getting up to $10,000 off. These are great deals and should help clear out some inventory from last year’s models.

Additionally, Foundation Series Cybertrucks purchased will receive free lifetime Supercharging, another great addition to make the deal even better than the $10,000 off.

The move comes as Tesla is still ramping Cybertruck production and is hoping to stimulate some additional demand for the vehicle, as it is holding on to these units. These are not Demo Drive units that have been driven by any number of people who were looking for a quick test drive.

Tesla launched a new configuration of the Cybertruck just last week with the Long Range Rear-Wheel-Drive, which undercuts the All-Wheel-Drive option by roughly $10,000.

Tesla released the Cybertruck RWD to make the AWD look like a deal

However, Tesla stripped the vehicle of several features, including Air Suspension, a tonneau cover, and interior features. For example, the Rear-Wheel-Drive trim of the Cybertruck has textile seats and no rear touchscreen, two things that come standard in the other trim levels.

The Cybertruck is the best-selling electric pickup in the United States, outperforming formidable competitors like the Ford F-150 Lightning and Chevrolet Silverado EV. However, Tesla is still working to get the vehicle to a lower price point that makes it more accessible to consumers, as its current pricing is a far cry from what was intended.

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