After rapidly stacking Ship 20 and Booster 4 the evening prior, SpaceX appears to have begun testing a fully stacked Starship rocket for the first time ever.
Though the test SpaceX subjected Starship to was by no means ambitious and in spite of the fact that it no longer appears that Ship 20 and Booster 4 will ever fly, the first test of the first fully integrated prototype of a new rocket is still an immensely significant achievement – particularly so for the largest rocket ever built.
Standing around 119 meters (~390 ft) tall, Starship is unequivocally the largest and most voluminous rocket ever built. With its 29 Raptor V1 engines, the fully assembled Ship 20 and Booster 4 (B4) stack would have likely weighed around 4000-5000 tons (9-11M lb) and been able to produce around 5400 tons (11.9M lbf) of thrust at liftoff – substantially heavier and more powerful than Saturn V or N1, the largest rockets ever successfully and unsuccessfully launched.
For its first fully-integrated test, though, SpaceX appears to have put Starship through a fairly limited cryogenic proof – a test where flammable propellant is replaced with a similarly cold (cryogenic) fluid that’s similar enough to subject a rocket to similar thermal and mechanical stresses. For Ship 20 and Booster 4’s combined debut, Super Heavy was filled maybe 10-20% and Starship around 25-50% of the way with either liquid nitrogen (LN2) or a combination of LN2 and liquid oxygen (LOx). It’s difficult to tell but it’s unlikely any methane (LCH4) fuel was involved.
Back on the ground, Starship S20 completed five separate cryogenic proof tests before its first test on top of Super Heavy. More importantly, Ship 20 successfully completed several static fire tests, each of which also functioned as a wet dress rehearsal with LCH4/LOx propellant. Booster 4 had also passed several cryogenic proof tests. In that sense, it’s unlikely that SpaceX had a great deal of uncertainty as to whether either prototype would be able to complete yet another test.
Beyond the basic mechanical demonstration that Super Heavy Booster 4 is strong enough to support a partially loaded Starship, which probably wasn’t in doubt, it’s likely that the main purpose of this first full-stack cryoproof was to ensure that all the systems required to fuel Starship on top of Super Heavy were working as expected. That’s no small feat given that Starship is both the tallest rocket and largest upper stage ever assembled. To fully fuel a Starship for an orbital launch, around 1200 tons (~2.65M lb) of propellant (or LN2 for a cryoproof) – equivalent to the weight of more than two entire Falcon 9 rockets – must be pumped around 85 meters (~275 ft) up Starbase’s integration tower.
That requires thousands of feet of plumbing and a symphony of giant valves and pumps, all of which must work in concert – without leaking, jamming, or freezing – to fuel Starship. As such, the first full-stack cryoproof was just as much – or more – of a test of the orbital launch site’s launch/integration tower and tank farm. That first test is just the start of a long process, though, and it’s likely that SpaceX will attempt an increasingly ambitious series of tests with Booster 4 and Ship 20 over the next week or two.
That could involve simply filling the rocket further and raising its tank pressures or it could potentially culminate in a partial wet dress rehearsal with methane and oxygen propellant in place of liquid nitrogen. There’s an even smaller chance that SpaceX could attempt to static fire Super Heavy B4 for the first time, although sources like NASASpaceflight are no longer confident that Booster 4 will be static fired before retirement. More to the point, it would be uncharacteristically risky behavior from SpaceX to perform the very first static fire of a new prototype with an already proven Starship sitting on top of it. An anomaly as small as an uncontrolled fire – far from uncommon for Starships – could easily risk the catastrophic destruction of both stages, which would itself run the risk of significantly damaging the orbital launch site, which could easily take months to repair.
Nonetheless, there’s still a chance. SpaceX has opportunities for additional testing on March 17th, 18th, 21st, and 22nd.
Elon Musk
Elon Musk may rethink his charity pledge after Peter Thiel’s Bill Gates warning: report
Musk reportedly took Thiel’s suggestion seriously.

Reports have emerged suggesting that Elon Musk might be rethinking his promise to give away most of his fortune. This was reportedly due to his longtime friend Peter Thiel, who told the world’s richest man to withdraw from the Giving Pledge because his wealth could end up “in left-wing nonprofits chosen by Bill Gates.”
Thiel shared the story during a private lecture series in San Francisco in September. As noted in a Reuters report, Musk reportedly took Thiel’s suggestion seriously.
Thiel warned Musk about his fortune going to Gates-backed causes
Thiel said he even ran the math to make his point. By checking actuarial tables, he calculated that if Musk died within a year, his pledge would effectively direct $1.4 billion to Bill Gates. Musk reportedly said, “What am I supposed to do, give it to my children? You know, it would be much worse to give it to Bill Gates.”
Musk signed on to the Giving Pledge in 2012, two years after it was co-founded by Gates and Warren Buffett, as noted in a Daily Beast report. The initiative asks billionaires to donate the majority of their wealth to charitable causes either during their lifetime or through their wills. Gates’ foundation has focused on global health, education, and gender equality, areas Thiel has described as “left-leaning.”
Spokespeople for Thiel, Musk, and Gates have not issued a comment about the matter.
Elon Musk and Bill Gates
Thiel, who co-founded PayPal with Musk in 2000 before launching Palantir and becoming Facebook’s first outside investor, has maintained close ties to the Tesla and SpaceX CEO over the years. Musk, for his part, continues to donate through the Musk Foundation, which funds education, clean energy, and scientific research.
Elon Musk and Bill Gates’ relationship has taken a nosedive in recent years, especially amidst news that the Microsoft co-founder had taken a short bet against Tesla. Musk seemed to have taken Gates’ Tesla short personally, considering that the EV maker is fighting for sustainability, a cause that the Microsoft co-founder has supported.
Gates has also been skeptical of Tesla’s projects such as the Tesla Semi, which Gates noted was not feasible due to the limitations of battery technology. More recently, the two billionaires butted heads when Gates claimed that the cuts initiated by Musk’s DOGE initiative would cost 2 million lives. In a post on X, Musk responded by stating that “Gates is a huge liar.”
News
Tesla axed one of the Model Y’s best features in ‘Standard’ trims: here’s why
Lars Moravy explains why Tesla chose to go with a glass roof in the new Standard trims, despite it not being visible.

Tesla chose to implement a glass roof on the new Model Y ‘Standard’, despite the fact that you won’t be able to see it from the inside.
In the new Model Y ‘Standard’ configuration, one of the biggest changes is the lack of a glass roof, which is one of the more unique features Tesla offers.
How Tesla’s Standard models will help deliveries despite price disappointment
The entire roof of the Model Y’s ‘Premium’ and Performance trims is glass, giving everyone in the car an astounding view of the sky.
However, Tesla chose to cover this up in the new ‘Standard’ trim level. Here’s a look at it:

Credit: ItsKimJava | X
Despite it not being visible from the inside, the roof is still made of glass. It is only visible from the outside. Even if you removed the headliner in the Model Y ‘Standard,’ you would not be able to see the outside, because the glass is opaque:
Fun fact about the Standard Model Y closed glass roof. A Tesla engineer told us that the glass is opaque, so even if you removed the textile lining on the inside, you would not see the outside. 😔 More details to come on our first drive video this Friday. pic.twitter.com/N4uZFlblBB
— Kim Java (@ItsKimJava) October 8, 2025
Tesla’s Vice President of Powertrain, Lars Moravy, commented on the use of glass in the Premium models and how it differs from the glass in the Standard trims:
“All glass is NOT created equal. Remember, the Model Y Premium glass is laminated with silver IR reflective coatings to make it super comfy and reject solar load… the standard is not… plus LOTS of people wanted a closed headliner, always trying to listen (and improve road noise at the same time).”
The decision to cover up the glass while still using it was an efficiency choice. Moravy said Tesla chose to keep the glass for the new Standard models due to “cost, supply chain, and manufacturing efficiency.”
Cost, supply chain and manufacturing efficiency in our factories
— Lars (@larsmoravy) October 9, 2025
Tesla launched the Standard models on Tuesday. The cars were effectively a counter to the loss of the $7,500 EV tax credit.
News
How Tesla’s Standard models will help deliveries despite price disappointment
“What a giant miss,” one person said.
“With all due respect, no way is this what y’all have been hyping for 6 quarters…” another one claimed.
“So…where are the affordable models?” another reply read.

When Tesla unveiled its Standard versions of the Model 3 and Model Y this week, reactions were mixed. Many liked the addition of two new models, but they were also concerned about the price.
“What a giant miss,” one person said.
“With all due respect, no way is this what y’all have been hyping for 6 quarters…” another one claimed.
“So…where are the affordable models?” another reply read.
Tesla launches two new affordable models with ‘Standard’ Model 3, Y offerings
There’s no arguing it: $36,990 and $39,990 for the Model 3 Standard and Model Y Standard were not what consumers had in mind.
But, despite Tesla getting its new offerings to a price that is not necessarily as low as many expected, the two cars still have a chance to assist with quarterly deliveries.
Here’s how:
First-time Tesla buyers will lean toward Standard models
Tesla owners have become accustomed to expecting all the bells and whistles in their cars. Heated seats, ventilated seats, acoustic glass, vegan leather, industry-leading performance, world-class range, and a glass roof are all expected by current or past owners.
But what about new owners?
New owners do not have these high expectations, so to many of those who have not sat in a Tesla or driven one before, they are going to be blown away by the minimalistic looks, capabilities, and features of the Standard models.
The Premium models will feel like the high-end offerings that other automakers also have for sale, except they’ll only be a few thousand dollars more than Tesla’s base models. With other companies, the price for these higher-end trims is $10,000 or more.
The more affordable Standard models will be there, but if buyers want the extra features, they’ll likely be able to justify the extra few thousand dollars.
Tesla’s Standard Models fall under the U.S. Average Transaction Price
Kelley Blue Book releases a new report each month showing the average transaction price (ATP) of all vehicles sold in the U.S. for that month.
The latest report, released on September 10 for the month of August, revealed an ATP of $49,077. This was up 0.5% from July ($48,841) and higher year over year by 2.6%.
Technically, Tesla’s new Standard models fall well under that ATP, meaning they technically do qualify as “affordable.” However, realistically speaking, affordable does not mean “under the national average.”
It means accessible for low-income families, single-parent households, and other groups. This would likely be under $30,000.
Déjà Vu with the Cybertruck Rear-Wheel-Drive
When Tesla offered the Cybertruck RWD, it stripped out many of the best features of the Cybertruck, such as the adjustable air suspension, powered tonneau cover, and interior materials, just to name a few.
It was $10,000 less than the Cybertruck AWD, but many people essentially viewed it as a way to push consumers toward the more expensive variants, since the discount was a better value than missing out on features.
Tesla released the Cybertruck RWD to make the AWD look like a deal
Something similar could happen with the Standard models. With it only being a few thousand dollars less than the Premium Model 3 and Model Y, some consumers will see it as a better option to go with the more expensive trim levels.
Even if they don’t, many car buyers will see it as a deal to grab the Standard versions.
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