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SpaceX, NASA call off Cargo Dragon launch after discovering fuel leak

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SpaceX and NASA have decided to call off an imminent Cargo Dragon 2 space station resupply mission after discovering a possible fuel leak while loading the spacecraft with propellant.

As a result, in an event that has become extremely rare for SpaceX, the launch has been indefinitely delayed after a recent series of slips from June 7th to the 9th, 10th, and 12th. Now, NASA says that it has fully stood down from any possible launch attempt this week, pushing CRS-25’s trip to the International Space Station (ISS) to June 13th at the absolute earliest.

“NASA and SpaceX are standing down from this week’s Falcon 9 launch of the CRS-25 cargo mission to the International Space Station. Officials from NASA and SpaceX met today to discuss an issue identified over the weekend and the best path forward.

During propellant loading of the Dragon spacecraft, elevated vapor readings of mono-methyl hydrazine (MMH) were measured in an isolated region of the Draco thruster propulsion system. The propellant and oxidizer have been offloaded from that region to support further inspections and testing. Once the exact source of the elevated readings is identified and cause is determined, the joint NASA and SpaceX teams will determine and announce a new target launch date.”


NASA – June 6th, 2022

The issue appears to have been discovered within the last few days, possibly explaining some of CRS-25’s small delays since May 19th. According to NASA, while loading Dragon with propellant, SpaceX detected “elevated vapor readings” of monomethylhydrazine (MMH) fuel in one “isolated region” related to the spacecraft’s propulsion system. After detecting the anomaly, SpaceX drained that particular section of fuel and oxidizer to allow for further inspections and testing to determine the “exact source” and its cause. Only once the source and cause have been determined will NASA and SpaceX announce a new launch date.

As is often the case with all kinds of rockets and spacecraft, there’s a good chance that the culprit of the unexpected detection of fuel vapors is a misbehaving valve. SpaceX will now need to figure out and fix exactly what went wrong before Cargo Dragon 2 C208 will be allowed to attempt its third orbital resupply mission since December 2020.

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Perhaps even more importantly, given just how similar Cargo Dragon 2 is to SpaceX’s Crew Dragon spacecraft, the results of that investigation will have ramifications that reach far beyond a lower-risk uncrewed cargo delivery. As has been the case almost every day since November 2020, a Crew Dragon spacecraft is already docked with the ISS as part of an operational NASA astronaut transport mission. Crew-4’s Dragon is scheduled to return the four astronauts it recently carried to the station back to Earth as early as September 2022. A different Crew Dragon is scheduled to launch Crew-5 around the same time.

Cargo Dragon 2 capsule C208 is pictured after its first successful launch and recovery. (SpaceX)

Given the similarity of all the reusable capsules in SpaceX’s Dragon fleet, there’s an omnipresent risk – however small – that any issue with one spacecraft could be present on all others. But on the opposite side of that sword, even the discovery of a more minor or isolated issue on any of SpaceX’s eight operational Dragon spacecraft – including uncrewed capsules like C208 – can help make the entire fleet safer and more reliable.

For now, CRS-25 has been effectively grounded. SpaceX’s next launch, carrying the Egyptian communications satellite Nilesat-301, is scheduled no earlier than (NET) June 8th.

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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Tesla makes big change to encourage Full Self-Driving purchases

Tesla Full Self-Driving was recently proven to be about ten times safer than a human driver in terms of accident frequency.

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Credit: Whole Mars Blog | X

Tesla has made a big change to its Online Design Studio, hoping to encourage car buyers to purchase Full Self-Driving with their vehicles.

Now, when you look at ordering a car on Tesla’s website, the portion of the page that formerly showed a render of Full Self-Driving capabilities has been replaced by a compilation of the suite’s performance in a variety of challenging scenarios.

It’s a great way to show off FSD’s impressive ability to work through road conditions that can even stump human drivers.

The move is much better than what the page previously illustrated. Now, people can see the true capabilities of the FSD suite and what it could do to change their perspective on how vehicles can be. Instead of a vessel of transportation, FSD turns cars into a semi-autonomous mode of travel.

Tesla Full Self-Driving is statistically very safe, logging about ten times the number of miles between accidents as human drivers, based on recent data the company released.

Tesla Q2 2025 vehicle safety report proves FSD makes driving almost 10X safer

It is available for purchase in two different ways: an outright purchase for $8,000 or in a monthly subscription for $99. This enables the software to essentially do a vast majority of the legwork of driving. Drivers must keep their eyes on the road and be prepared to take over if an intervention is needed.

However, FSD has been proven to be a very accurate and safe way to travel. Tesla recently released a video of a drive from the Bay Area to Los Angeles, a nearly seven-hour trip, under FSD without a single intervention ever needed:

Tesla flexes its most impressive and longest Full Self-Driving demo yet

From a personal perspective, Tesla Full Self-Driving is a great way to travel because it truly takes a lot of the stress out of driving. In the past, I’ve used it during weekend Demo Drives to navigate around my town to see if it could handle some of the tougher traffic in my area. It became such an amazing and convenient alternative that when I went back to my car, I truly missed the advantage of having it.

I took a Tesla Model Y weekend-long Demo Drive – Here’s what I learned

However, I am picking up my Tesla Model Y this coming weekend and will enjoy it for the free three months before subscribing to the monthly program.

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Tesla offers new feature to save battery and reduce phantom drain

While in Low Power Mode, your vehicle continues to use energy for standby functions, screen activity, and Tesla app interactions. In cold weather, available energy may drop more quickly.”

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Credit: Tesla

Tesla is offering a new feature to help owners save battery and reduce phantom drain, an issue that some have complained of with their cars.

While Teslas are some of the most efficient EVs on the market, they utilize energy and battery life when they’re parked to keep certain features, like Sentry Mode, Summon Standby, and others, active in preparation for potential events that occur.

Keeping these features ready to perform utilizes energy, and if your car is parked at an airport where it could be sitting stagnant for a few days, the battery percentage could start to dwindle pretty significantly.

Because of this, Tesla is rolling out a new feature called “Low Power Mode,” which will automatically disable a handful of settings to combat battery dwindling and phantom battery drain.

Tesla writes in the release notes for the feature:

“When Low Power Mode is enabled, your vehicle will conserve energy by automatically disabling the following features:

    • Sentry Mode
    • Summon Standby
    • Outlets
    • Keep Accessory Power On
    • Keep Climate On and Camp Mode
    • Scheduled Preconditioning
    • Cabin Overheat Protection

While charging with Low Power Mode enabled:

    • Sentry Mode and accessory power will remain available
    • Keep Climate On and Camp Mode are only available when Supercharging

While in Low Power Mode, your vehicle continues to use energy for standby functions, screen activity, and Tesla app interactions. In cold weather, available energy may drop more quickly.”

This feature seemed to be a reaction to a past issue that an owner had as their Cybertruck continued to utilize energy even though the pickup was parked at an airport and the owner was in Japan. The Cybertruck had utilized a lot of energy to keep standby functions active, which left the owner in an interesting spot when they returned.

CEO Elon Musk stepped in, and it seems this feature might have been a reaction to that situation. This is an ideal thing to use if you’re looking to conserve your battery’s state of charge.

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Tesla is bringing back something it took from the Model 3…for a price

“Modify your Model 3 by replacing the turn signal buttons on your steering wheel with turn signal stalks. This modification is included in the purchase price and is installed by a Tesla Service Center.”

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Credit: Tesla

Tesla is bringing back the Model 3’s turn signal stalk in China after removing the part with the refresh of the all-electric sedan early last year.

However, it is going to cost you.

In 2024, Tesla launched the Model 3 “Highland,” a refreshed version of the vehicle that included several large-scale changes. One of the most noticeable was the lack of a turn signal stalk, something the company chose to remove and instead implement turn signal buttons on the steering wheel.

The buttons were met with mixed reviews, as some drivers complained that it was too difficult to get used to them. Others had no problem with the change, noting that it was slightly more convenient for them or that they enjoyed the minimalistic look.

Now, Tesla is offering Model 3 owners in China the opportunity to replace the stalk for a price of ¥ 2,499, or about $350:

“Modify your Model 3 by replacing the turn signal buttons on your steering wheel with turn signal stalks. This modification is included in the purchase price and is installed by a Tesla Service Center.”

Tesla notes on its website that the service is available for Model 3 vehicles without stalks manufactured after February 7, 2025. Any car without a stalk that was manufactured before that date will have the service available to them in the future.

Installation can be performed at a Service Center or by the owner. However, Tesla notes that it is not responsible for any damages resulting from self-installation and recommends that the part be put in by an employee.

The cockpit of the Tesla lineup has been under intense scrutiny by the company in recent years. After a few changes to things like the stalk, steering wheel shape, and others, Tesla has usually given drivers the chance to have things reverted back to their preferences if they want.

They did this for the Model S and Model X a few years ago after implementing the yoke steering wheel.

Tesla Steering Wheel Retrofits have started, and it’s easy to get rid of your yoke

The stalk was not supposed to be removed from the Model 3 and Model Y, but Tesla chose to do so with the refresh last year.

It seems the minimalization of the cockpit, overall, is a move that prepares drivers for autonomy, as eventually, Teslas will be void of pedals, steering wheels, and any other apparatus that are used to control the car.

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