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SpaceX Falcon 9 to attempt unusual drone ship landing after space station resupply launch

Falcon 9 is set to launch Cargo Dragon's CRS-19 mission later today and is scheduled to attempt an unusual drone ship landing soon after liftoff. (SpaceX)

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SpaceX’s workhorse Falcon 9 rocket is ready for the company’s 12th launch this year, set to send a reused Cargo Dragon spacecraft on its way to the International Space Station (ISS) and conclude with a surprise drone ship landing attempt.

SpaceX is about eight hours out from launching CRS-19, set to become Cargo Dragon’s 20th orbital mission and 19th space station rendezvous and resupply. It will also be the second time a single Cargo Dragon capsule flies its third orbital mission and the eight Dragon reuse overall, continuing proof that SpaceX is by far the leading global expert in launch vehicle and orbital spacecraft recovery and reuse.

Set to lift off no earlier than 12:51 pm ET (16:51 UTC), December 4th, CRS-19 will see flight-proven Cargo Dragon capsule C106 launch atop a new expendable trunk and upper stage, as well as a new Falcon 9 booster – an increasingly unusual sight. After a Falcon Heavy Block 5 launch completed earlier this year, SpaceX passed a threshold where it had recovered more boosters after launch than it had expended, equating to 40+ successful landings. Since Falcon 9 Block 5 – a reusability and reliability-focused upgrade – debuted in May 2018, sooty (i.e. flight-proven) boosters have become an increasingly common sight.

Between Falcon Heavy’s two 2019 launches, four new boosters marked their flight debut, while Falcon 9 missions have only debuted two new boosters – soon to be three after CRS-19. In other words, as of today, 7 of Falcon 9’s 9 2019 launches have involved flight-proven boosters – more than 75%. In fact, Block 5 is proving so robust that SpaceX has actually intentionally slowed down booster production at its Hawthorne, CA factory, hoping to instead treat its currently flightworthy rockets as a true fleet, cycling through them to launch dozens of missions.

Three of SpaceX's thrice-flown Falcon 9 boosters are pictured here: B1046, B1048, and B1049. (Tom Cross & Pauline Acalin)
SpaceX’s three surviving thrice-flown Block 5 boosters – B1048, B1049, and B1046. Before the end of 2019, SpaceX will likely have flown five Falcon 9 boosters three or more times apiece. (Teslarati, Pauline Acalin)

Cargo Dragon with a (rare) side of drone ship

Beyond the rarity of a new booster’s launch debut and Cargo Dragon’s increasingly impressive history of reusability, CRS-19 – as discussed at length in earlier articles – will also see Falcon 9 booster B1058 attempt to land aboard drone ship Of Course I Still Love You (OCISLY) some 350 km (200 mi) downrange. Aside from CRS-17’s Crew Dragon explosion-related drone ship landing in May 2019, all CRS mission booster recoveries since April 2016 have landed (or at least attempted to land) at SpaceX’s Cape Canaveral-based LZ-1 or LZ-2 landing pads.

Close to shore by average drone ship landing standards but a cross-country jaunt compared to CRS-17’s unusual May 2019 booster landing aboard OCISLY, SpaceX explained the odd booster recovery plans in a routine prelaunch press conference yesterday afternoon.

“[After Dragon is deployed and CRS-19’s launch concludes], SpaceX is going to perform an…ambitious coast test, requiring larger propellant margins that must be withdrawn from Falcon 9’s own landing propellant budget.”

Teslarati — December 3rd, 2019

Falcon 9 has won a contract launch what will likely be a rideshare mission - featuring the Nova C Moon lander - in July 2021. (SpaceX)
A Falcon 9/Heavy upper stage deploys its payload fairing and burns towards orbit. (SpaceX)

In short, SpaceX needs to leave more propellant for the upper stage, thus limiting B1058’s ability to boost all the way back to the Florida coast. Instead, it will only partially slow its Eastbound velocity, still leaving enough margin for drone ship OCISLY to station relatively close to the Florida coast compared to more common (and more demanding) booster recovery profiles.

All told, SpaceX says Falcon 9’s upper stage will attempt to perform a six-hour coast (“thermal test”) after CRS-19, concluding with a final Merlin Vacuum engine reignition and deorbit burn, similar to a test performed after CRS-18’s recent July 2019 launch. These tests are meant to satisfy what SpaceX described as the requirements of “other customers”, of which the USAF is by far the best known for its long-duration coast demands. For an upper stage powered by cryogenic liquid fuel, remaining fully functional for hours in orbit is one of the single greatest technical challenges that face modern rocketry.

Tune in around 12:30 pm ET (16:30 UTC) at the webcast below to watch Falcon 9’s CRS-19 launch and landing live.

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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’s Boring Company opens Vegas Loop’s newest station

The Fontainebleau is the latest resort on the Las Vegas Strip to embrace the tunneling startup’s underground transportation system.

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Credit: The Boring Company/X

Elon Musk’s tunneling startup, The Boring Company, has welcomed its newest Vegas Loop station at the Fontainebleau Las Vegas.

The Fontainebleau is the latest resort on the Las Vegas Strip to embrace the tunneling startup’s underground transportation system.

Fontainebleau Loop station

The new Vegas Loop station is located on level V-1 of the Fontainebleau’s south valet area, as noted in a report from the Las Vegas Review-Journal. According to the resort, guests will be able to travel free of charge to the stations serving the Las Vegas Convention Center, as well as to Loop stations in Encore and Westgate.

The Fontainebleau station connects to the Riviera Station, which is located in the northwest parking lot of the convention center’s West Hall. From there, passengers will be able to access the greater Vegas Loop.

Vegas Loop expansion

In December, The Boring Company began offering Vegas Loop rides to and from Harry Reid International Airport. Those trips include a limited above-ground segment, following approval from the Nevada Transportation Authority to allow surface street travel tied to Loop operations.

Under the approval, airport rides are limited to no more than four miles of surface street travel, and each trip must include a tunnel segment. The Vegas Loop currently includes more than 10 miles of tunnels. From this number, about four miles of tunnels are operational.

The Boring Company President Steve Davis previously told the Review-Journal that the University Center Loop segment, which is currently under construction, is expected to open in the first quarter of 2026. That extension would allow Loop vehicles to travel beneath Paradise Road between the convention center and the airport, with a planned station located just north of Tropicana Avenue.

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Tesla leases new 108k-sq ft R&D facility near Fremont Factory

The lease adds to Tesla’s presence near its primary California manufacturing hub as the company continues investing in autonomy and artificial intelligence.

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Credit: Tesla

Tesla has expanded its footprint near its Fremont Factory by leasing a 108,000-square-foot R&D facility in the East Bay. 

The lease adds to Tesla’s presence near its primary California manufacturing hub as the company continues investing in autonomy and artificial intelligence.

A new Fremont lease

Tesla will occupy the entire building at 45401 Research Ave. in Fremont, as per real estate services firm Colliers. The transaction stands as the second-largest R&D lease of the fourth quarter, trailing only a roughly 115,000-square-foot transaction by Figure AI in San Jose.

As noted in a Silicon Valley Business Journal report, Tesla’s new Fremont lease was completed with landlord Lincoln Property Co., which owns the facility. Colliers stated that Tesla’s Fremont expansion reflects continued demand from established technology companies that are seeking space for engineering, testing, and specialized manufacturing.

Tesla has not disclosed which of its business units will be occupying the building, though Colliers has described the property as suitable for office and R&D functions. Tesla has not issued a comment about its new Fremont lease as of writing.

AI investments

Silicon Valley remains a key region for automakers as vehicles increasingly rely on software, artificial intelligence, and advanced electronics. Erin Keating, senior director of economics and industry insights at Cox Automotive, has stated that Tesla is among the most aggressive auto companies when it comes to software-driven vehicle development.

Other automakers have also expanded their presence in the area. Rivian operates an autonomy and core technology hub in Palo Alto, while GM maintains an AI center of excellence in Mountain View. Toyota is also relocating its software and autonomy unit to a newly upgraded property in Santa Clara.

Despite these expansions, Colliers has noted that Silicon Valley posted nearly 444,000 square feet of net occupancy losses in Q4 2025, pushing overall vacancy to 11.2%.

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Tesla winter weather test: How long does it take to melt 8 inches of snow?

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Credit: Teslarati

In Pennsylvania, we got between 10 and 12 inches of snow over the weekend as a nasty Winter storm ripped through a large portion of the country, bringing snow to some areas and nasty ice storms to others.

I have had a Model Y Performance for the week courtesy of Tesla, which got the car to me last Monday. Today was my last full day with it before I take it back to my local showroom, and with all the accumulation on it, I decided to run a cool little experiment: How long would it take for Tesla’s Defrost feature to melt 8 inches of snow?

Tesla Model Y Performance set for new market entrance in Q1

Tesla’s Defrost feature is one of the best and most underrated that the car has in its arsenal. While every car out there has a defrost setting, Tesla’s can be activated through the Smartphone App and is one of the better-performing systems in my opinion.

It has come in handy a lot through the Fall and Winter, helping clear up my windshield more efficiently while also clearing up more of the front glass than other cars I’ve owned.

The test was simple: don’t touch any of the ice or snow with my ice scraper, and let the car do all the work, no matter how long it took. Of course, it would be quicker to just clear the ice off manually, but I really wanted to see how long it would take.

Tesla Model Y heat pump takes on Model S resistive heating in defrosting showdown

Observations

I started this test at around 10:30 a.m. It was still pretty cloudy and cold out, and I knew the latter portion of the test would get some help from the Sun as it was expected to come out around noon, maybe a little bit after.

I cranked it up and set my iPhone up on a tripod, and activated the Time Lapse feature in the Camera settings.

The rest of the test was sitting and waiting.

It didn’t take long to see some difference. In fact, by the 20-minute mark, there was some notable melting of snow and ice along the sides of the windshield near the A Pillar.

However, this test was not one that was “efficient” in any manner; it took about three hours and 40 minutes to get the snow to a point where I would feel comfortable driving out in public. In no way would I do this normally; I simply wanted to see how it would do with a massive accumulation of snow.

It did well, but in the future, I’ll stick to clearing it off manually and using the Defrost setting for clearing up some ice before the gym in the morning.

Check out the video of the test below:

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