Connect with us

News

SpaceX loses record-breaking rocket booster after sixth successful Starlink launch

Minutes after breaking SpaceX's reusability record, Falcon 9 booster B1048 was lost shortly before attempting a drone ship landing. (Richard Angle)

Published

6 years ago

on

SpaceX has suffered its second rocket landing failure of 2020 despite the fact that both lost Falcon 9 boosters successfully launched 60 Starlink satellites, an anomaly that CEO Elon Musk says will need a “thorough investigation”.

After a rare last-second launch abort on March 15th and a three-day range-related delay, Falcon 9 booster B1048 lifted off with 60 upgraded Starlink v1.0 satellites on its fifth orbital-class mission. At least for the first two and half minutes, the booster performed precisely as intended, carrying a fueled upper stage and its ~16 metric ton (36,000 lb) payload to an altitude of 55 km (34 mi) and a velocity of 1.8 km/s (1.1 mi/s). However, about 10 seconds before the booster reached main engine cut-off (MECO) and stage separation, something went wrong.

While there is some ambiguity in his response, according to Musk, at least one of Falcon 9 B1048’s nine Merlin 1D engines performed an early shutdown before MECO. The rocket’s computer immediately accounted for the anomaly, extending the remaining eight-engine booster burn 5-7 seconds beyond the nominal timeline to ensure mission success. While the booster’s loss is still disappointing and the premature engine shutdown more than a little concerning, it’s critical to remember that mission success was ensured. Just 15 minutes after liftoff, the rocket’s upper stage successfully spun up and deployed another 60 Starlink satellites, bringing SpaceX’s operational constellation to an incredible ~350 satellites.

B1048 punches through Max Q on what would turn out to be the Falcon 9 booster’s swan song. (Richard Angle)
Minutes after breaking SpaceX’s reusability record, Falcon 9 booster B1048 was lost for unknown reasons shortly before attempting a drone ship landing. (SpaceX)
Despite the booster anomaly, SpaceX has now successfully launched 360 Starlink satellites. (SpaceX)

Based on live views available from SpaceX’s launch webcast, it appears that Falcon 9’s “early engine shutdown” is more of a euphemism for a fairly violent engine failure that triggered an instantaneous cutoff, preventing damage elsewhere. While SpaceX would certainly rather avoid in-flight engine failures, Falcon 9’s nine Merlin 1D booster engines are installed inside an aluminum ‘octaweb’ structure that transmits their thrust to the rest of the rocket but also effectively quarantines each engine in a blast-proof bunker.

Despite the partial failure, Falcon 9 B1048 continued to fight its way through its landing trajectory until it either ran out of propellant or burnt up during reentry. (SpaceX)

Nevertheless, the rocket’s highly-attuned software and affected octaweb engine bunker did their jobs, instantly shutting the failing engine down while also preventing the explosion and resulting shrapnel from damaging the rest of the rocket. More likely than not, B1048’s autonomous decision to always put mission success before booster recovery lead the booster to expend a majority of the propellant needed for its landing attempt to make up for the 10 or so seconds operating at only ~89% thrust.

As a result, B1048 may have simultaneous subjected itself to a much more extreme atmospheric reentry and run out of propellant before it could complete (or maybe even start) its drone ship landing burn. There’s also a chance that the engine that failed was one of the three engines required for reentry and landing burns, an asymmetry that would be impossible to overcome on the fly. Ultimately, the booster likely impacted the ocean at a near-supersonic velocity, smashing it into aluminum confetti. Thankfully, the late B1048 had a record-breakingly productive career as an orbital-class booster, placing dozens of tons of payload into orbit over five successful launches. Its loss is regrettable but the booster has more than earned its keep.

Aside from two twice-flown Falcon Heavy Block 5 side boosters of unknown status and 2-3 new boosters assigned to critical NASA and US Air Force missions, SpaceX’s fleet is now down to just three flightworthy Falcon 9 boosters. This could dramatically limit its options for near-term commercial flights, as none of those rockets – even assuming flawless launch and landing debuts – will likely be ready for their first reuses until May or June. Meanwhile, B1051 and B1049 have three and four missions under their respective belt and both completed their last launches just 50-70 days ago, while B1059 flew for the second time just two weeks ago. Despite the fact that it successfully completed its fifth mission, B1048’s in-flight engine failure will almost certainly delay upcoming launches, although the degree of those delays is up for debate.

Up next for SpaceX is SAOCOM 1B, an Argentinian radar satellite set to become the first payload launched into a polar orbit from the US East Coast in half a century. Before B1048’s anomaly, the mission was scheduled to launch no earlier than March 30th and could use any of unassigned boosters described above

Advertisement

Check out Teslarati’s Marketplace! We offer Tesla accessories, including for the Tesla Cybertruck and Tesla Model 3.

Related Topics:

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.

Advertisement
Comments

News

Tesla Model Y reclaims elusive sales title in competitive market

As more EVs have entered the market and some at better prices, Tesla’s Model Y has been put up against some very attractive options.

Published

8 hours ago

on

October 25, 2025

By

Credit: Tesla

The Tesla Model Y reclaimed an elusive sales title in one of the most competitive markets it is in, outpacing key rivals and formidable competitors to regain the crown it once was a shoe-in for.

As more EVs have entered the market and some at better prices, Tesla’s Model Y has been put up against some very attractive options.

This is especially prudent in Europe and China, where domestic car companies have been offering attractive and cheap EVs as Tesla alternatives.

However, in September, the Model Y was able to battle back and take over the top sales spot for EVs in Europe.

In September, it had 25,938 sales, and although it was an 8.6 percent decrease compared to the same month in 2024, it was enough to be labeled the best-selling car in the European market, Automotive News reported.

500-mile test proves why Tesla Model Y still humiliates rivals in Europe

There are four vehicles that have been atop the European EV sales rankings for any given month this year: the Renault Clio, which has three titles, the Dacia Sandero, which has won four monthly sales titles, and the Volkswagen T-Roc, which was the best-selling car in the market in August.

The Clio captured the number-two spot in September with 20,146 sales.

Despite a strong September showing for the Model Y, which was its first monthly sales crown of the year, the vehicle has not been a top-three EV in Europe this year. That is still led by the Sandero, Clio, and T-Roc.

Despite that, Tesla’s Model Y is still likely to be one of the best-selling vehicles in the world, if not the best, for the year.

In the United States, it has dominated EV sales charts and has been one of the most popular cars in the region. The same goes for China, where the Model Y has more competition than in Europe, but is so attractive because of its premium look and feel, as well as its tech offerings.

The Model Y has been the best-selling car globally for the past two years, outpacing widely popular gas and EV models from around the world.

Tesla also just finished up its best three-month sales period in its history, delivering just shy of half a million vehicles from July to September.

Continue Reading

News

Tesla dashcam video shows crazy plane crash avoidance maneuver

Published

8 hours ago

on

October 25, 2025

By

Credit: @davidbellow | X

A Tesla captured video of a crashing plane on an Oklahoma highway, as a shocking video shows a small aircraft coming across a local roadway, with various cars ducking to avoid it.

On October 23, an Oklahoma National Guard OA-1K Skyraider II turboprop plane crashed during a training mission after an engine failure. Both crew members escaped unharmed, but they were not the only ones at risk of injury.

A Tesla Dashcam video shared by a friend of the car’s owner shows the vehicle narrowly avoiding an impact with the plane, swerving left, then back onto its side of the road. It appears to be a serious miracle:

David Bellow, the person who posted the video of the Tesla avoiding the plane, claims it was Full Self-Driving that performed the maneuver, but it is not confirmed. This is what he said:

There are a few hints that suggest it could be Tesla’s Full Self-Driving suite, but it is important to note that neither the company, the driver, nor the friend has confirmed this.

The first hint is the vehicle’s maneuver and subsequent reaction. The car suddenly swerves to the left, which any human would do, but how the vehicle continues to travel as if nothing had happened seems to solidify the idea that FSD could have been involved in avoiding the plane.

Nevertheless, this does not confirm that FSD was in control.

My Tesla did this on FSD (Supervised) v14.1 and the internet went crazy

Most people would likely have stopped in their tracks after avoiding an aircraft while driving.

However, this is not enough proof to definitively say FSD was responsible for the avoidance.

Additionally, the “Jump to Event” button is activated in the video, suggesting that FSD was in control. The vehicle gives this option when something major has occurred, including human intervention.

Regardless of whether the car was on FSD or was controlled manually, it is pretty crazy to have this piece of dashcam footage.

Continue Reading

News

Tesla Full Self-Driving got a minor feature that’s a massive improvement

“Brake Confirm for the Start Self-Driving button is now defaulted off. When disabled, Start Self-Driving will not require you to press and release the brake to confirm engagement.”

Published

9 hours ago

on

October 25, 2025

By

Credit: Tesla

Tesla’s Full Self-Driving suite seems to get better with every single release. However, it is also making it more seamless and easier than ever to use for passenger travel, thanks to a recent feature that has flown under the radar.

Tesla started rolling out its v14 iteration of the Full Self-Driving suite a few weeks ago to Early Access Program (EAP) members, and it finally started making its way to the public for the first time earlier this week.

Tesla Full Self-Driving v14.1 first impressions: Robotaxi-like features arrive

The wide rollout of Tesla v14.1.3 was long-awaited, as its capabilities were flexed by the handful of people lucky to have it. However, those sitting with v13.2.9 were still eager to get to their hands on the new FSD version, especially considering it came with a lot of cool upgrades.

One of which is flying under the radar and not getting as much attention as it should. Although it is a minor feature change from v13, Tesla has made FSD more seamless than ever with a simple fix that it started utilizing with v14.

With v14.1.1, Tesla started rolling out the removal of the “Brake Confirm” feature, which required drivers to touch the brake to activate Full Self-Driving. This is now an optional feature, as it now is defaulted to the off position by the car.

The release notes for the feature state:

“Brake Confirm for the Start Self-Driving button is now defaulted off. When disabled, Start Self-Driving will not require you to press and release the brake to confirm engagement.

You can enable Brake Confirm in Autopilot > Brake Confirm.”

Simply put, you no longer need to touch the brake to confirm your intention to use Full Self-Driving, which is a small but very effective fix.

It makes your car much more active in terms of overall activation, and it is definitely a quicker and more streamlined departure from your current location than ever before.

Here’s a good look at how quick it is:

@teslarati With Tesla Full Self-Driving v14, there is no delay when you start FSD. Press “Start Self-Driving” and you’re on your way #fyp #viral #tesla #teslafsd #fsdv14 ♬ original sound – TESLARATI

The feature is small, but it is very noticeable with your first uses of FSD v14. Eventually, it will become even more streamlined as Tesla solves self-driving and autonomy, as it will require zero human intervention to get started, which means the “Start Self-Driving” button will also be removed.

Continue Reading

Trending