Enlarge / SpaceX landed its 300th booster on Tuesday. (credit: SpaceX webcast)

SpaceX launches have become extremely routine. On Tuesday evening, SpaceX launched its 42nd rocket of the year, carrying yet another passel of Starlink satellites into orbit. Chances are, you didn't even notice.

All the same, the cumulative numbers are mind-boggling. SpaceX is now launching at a rate of one mission every 2.7 days this year. Consider that, from the mid-1980s through the 2010s, the record for the total number of launches worldwide in any given year was 129. This year alone, SpaceX is on pace for between 130 and 140 total launches.

But with Tuesday evening's mission, there was a singular number that stood out: 300. The Falcon family, which includes the Falcon 9 and Falcon Heavy boosters, recorded its 300th successful first-stage landing.

Enlarge / A BE-4 engine is moved into position on ULA's second Vulcan rocket. (credit: United Launch Alliance)

Welcome to Edition 6.40 of the Rocket Report! There was a lot of exciting news this week. For the first time, SpaceX launched a reusable Falcon 9 booster for a 20th flight. A few miles away at Cape Canaveral, Boeing and United Launch Alliance completed one of the final steps before the first crew launch of the Starliner spacecraft. But I think one of the most interesting things that happened was NASA's decision to ask the space industry for more innovative ideas on how to do Mars Sample Return. I have no doubt that space companies will come up with some fascinating concepts, and I can't wait to hear about them.

As always, we welcome reader submissions, and if you don't want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets, as well as a quick look ahead at the next three launches on the calendar.

Going vertical Down Under. Gilmour Space has raised its privately developed Eris rocket vertical on a launch pad in North Queensland for the first time, the Australian Broadcasting Corporation reports. This milestone marks the start of the next phase of launch preparations for Eris, a three-stage rocket powered by hybrid engines. If successful, Eris would become the first Australian-built rocket to reach orbit. Gilmour says the maiden flight of Eris is scheduled for no earlier than May 4, pending launch permit approvals. This presumably refers to a commercial launch license from the Australian government.

Enlarge / Is that sooty rocket lifting off with the CRS-3 mission in 2014 a reused booster? No, it is not. (credit: SpaceX)

Ten years ago today, when a Falcon 9 rocket took off from Florida, something strange happened. Dramatically, as the rocket lifted off, a fountain of dirty water splashed upward alongside the vehicle, coating the rocket in grime.

Following the ultimately successful liftoff of this third cargo Dragon mission to the International Space Station, SpaceX founder Elon Musk was asked about the incident during a news conference. He offered a fairly generic answer without going into the details.

"We sprayed a bunch of water all around the pad," Musk said. "Essentially what happened is we splashed dirty water on ourselves. So it’s a little embarrassing, but no harm done."

Enlarge / File photo of a Falcon 9 rocket rolling out of its hangar at Cape Canaveral Space Force Station, Florida. (credit: SpaceX)

For the first time, SpaceX will launch one of its reusable Falcon 9 boosters for a 20th time Friday night on a flight to deliver 23 more Starlink Internet satellites to orbit.

This milestone mission is scheduled to lift off at 9:22 pm EDT Friday (01:22 UTC Saturday) from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station, Florida. Forecasters from the US Space Force predict "excellent" weather for the primetime launch.

Falcon 9 will blaze a familiar trail into space, following the same profile as dozens of past Starlink missions.

Enlarge / Nine kerosene-fueled Rutherford engines power Rocket Lab's Electron launch vehicle off the pad at Wallops Island, Virginia, early Thursday. (credit: Brady Kenniston/Rocket Lab)

Welcome to Edition 6.36 of the Rocket Report! SpaceX wants to launch the next Starship test flight as soon as early May, the company's president and chief operating officer said this week. The third Starship test flight last week went well enough that the Federal Aviation Administration—yes, the FAA, the target of many SpaceX fans' frustrations—anticipates a simpler investigation and launch licensing process than SpaceX went through before its previous Starship flights. However, it looks like we'll have to wait a little longer for Starship to start launching real satellites.

As always, we welcome reader submissions, and if you don't want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets, as well as a quick look ahead at the next three launches on the calendar.

Starship could threaten small launch providers. Officials from several companies operating or developing small satellite launch vehicles are worried that SpaceX's giant Starship rocket could have a big impact on their marketability, Space News reports. Starship's ability to haul more than 100 metric tons of payload mass into low-Earth orbit will be attractive not just for customers with heavy satellites but also for those with smaller spacecraft. Aggregating numerous smallsats on Starship will mean lower prices than dedicated small satellite launch companies can offer and could encourage customers to build larger satellites with cheaper parts, further eroding business opportunities for small launch providers.

Enlarge / A Falcon 9 rocket lifts off Thursday from Cape Canaveral, Florida. (credit: NASA/SpaceX)

Upgrades at SpaceX's most-used launch pad in Florida got a trial run Thursday with the liftoff of a Falcon 9 rocket with a Dragon cargo ship heading for the International Space Station.

SpaceX's Cargo Dragon spacecraft launched at 4:55 pm EDT (20:55 UTC) Thursday from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida. This mission, known as CRS-30, is SpaceX's 30th resupply mission to the space station since 2012.

The automated Dragon supply ship took off on top of a Falcon 9 rocket, heading for a monthlong stay at the International Space Station, where it will deliver more than 6,000 pounds of hardware, fresh food, and experiments for the lab's seven-person crew.

Enlarge / A SpaceX Falcon 9 rocket lifts off with the Crew-8 mission, sending three NASA astronauts and one Russian cosmonaut on a six-month expedition on the International Space Station. (credit: Photo by Gregg Newton/AFP via Getty Images)

SpaceX's oldest Crew Dragon spacecraft launched Sunday night on its fifth mission to the International Space Station, and engineers are crunching data to see if the fleet of Dragons can safely fly as many as 15 times.

It has been five years since SpaceX launched the first Crew Dragon spacecraft on an unpiloted test flight to the space station and nearly four years since SpaceX's first astronaut mission took off in May 2020. Since then, SpaceX has put its clan of Dragons to use ferrying astronauts and cargo to and from low-Earth orbit.

Now, it's already time to talk about extending the life of the Dragon spaceships. SpaceX and NASA, which shared the cost of developing the Crew Dragon, initially certified each capsule for five flights. Crew Dragon Endeavour, the first in the Dragon fleet to carry astronauts, is now flying for the fifth time.

Enlarge / SpaceX launched a Falcon 9 rocket Wednesday with six missile-tracking satellites for the US military. (credit: SpaceX)

Two prototype satellites for the Missile Defense Agency and four missile-tracking satellites for the US Space Force rode a SpaceX Falcon 9 rocket into orbit Wednesday from Florida's Space Coast.

These satellites are part of a new generation of spacecraft designed to track hypersonic missiles launched by China or Russia and perhaps emerging missile threats from Iran or North Korea, which are developing their own hypersonic weapons.

Hypersonic missiles are smaller and more maneuverable than conventional ballistic missiles, which the US military's legacy missile defense satellites can detect when they launch. Infrared sensors on the military's older-generation missile tracking satellites are tuned to pick out bright thermal signatures from missile exhaust.

Enlarge / NASA's PACE spacecraft last year at Goddard Space Flight Center, Maryland. (credit: NASA)

NASA's latest mission dedicated to observing Earth's oceans and atmosphere from space rocketed into orbit from Florida early Thursday on a SpaceX launch vehicle.

This mission will study phytoplankton, microscopic plants fundamental to the marine food chain, and tiny particles called aerosols that play a key role in cloud formation. These two constituents in the ocean and the atmosphere are important to scientists' understanding of climate change. The mission's acronym, PACE, stands for Plankton, Aerosol, Cloud, ocean Ecosystem.

Nestled in the nose cone of a Falcon 9 rocket, the PACE satellite took off from Cape Canaveral Space Force Station, Florida, at 1:33 am EST (06:33 UTC) Thursday after a two-day delay caused by poor weather.

Enlarge / A Falcon 9 rocket lifts off from NASA's Kennedy Space Center to begin the Ax-3 commercial crew mission. (credit: Stephen Clark/Ars Technica)

For the third time, an all-private crew is heading for the International Space Station. The four-man team lifted off from NASA's Kennedy Space Center in Florida aboard a SpaceX Falcon 9 rocket Thursday, kicking off a 36-hour pursuit of the orbiting research laboratory. Docking is scheduled for Saturday morning.

This two-week mission is managed by Houston-based Axiom Space, which is conducting private astronaut missions to the ISS as a stepping stone toward building a fully commercial space station in low-Earth orbit by the end of this decade.

Axiom's third mission, called Ax-3, launched at 4:49 pm EST (21:49 UTC) Thursday. The four astronauts were strapped into their seats inside SpaceX's Dragon Freedom spacecraft atop the Falcon 9 rocket. This is the 12th time SpaceX has launched a human spaceflight mission, and could be the first of five Dragon crew missions this year.

Enlarge / Firefly Aerospace's fourth Alpha rocket lifted off December 22 from Vandenberg Space Force Base, California. (credit: Firefly Aerospace/Trevor Mahlmann)

Welcome to Edition 6.25 of the Rocket Report! We hope all our readers had a peaceful holiday break. While many of us were enjoying time off work, launch companies like SpaceX kept up the pace until the final days of 2023. Last year saw a record level of global launch activity, with 223 orbital launch attempts and 212 rockets successfully reaching orbit. Nearly half of these missions were by SpaceX.

As always, we welcome reader submissions, and if you don't want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets, as well as a quick look ahead at the next three launches on the calendar.

Firefly's fourth launch puts payload in wrong orbit. The fourth flight of Firefly Aerospace's Alpha rocket on December 22 placed a small Lockheed Martin technology demonstration satellite into a lower-than-planned orbit after lifting off from Vandenberg Space Force Base, California. US military tracking data indicated the Alpha rocket released its payload into an elliptical orbit ranging between 215 and 523 kilometers in altitude, not the mission's intended circular target orbit. Firefly later confirmed the Alpha rocket's second stage, which was supposed to reignite about 50 minutes after liftoff, did not deliver Lockheed Martin's satellite into the proper orbit. This satellite, nicknamed Tantrum, was designed to test Lockheed Martin's new wideband Electronically Steerable Antenna technology to demonstrate faster on-orbit sensor calibration to deliver rapid capabilities to US military forces.

Enlarge / One of the most historic rockets in SpaceX's fleet toppled over Christmas Day on the return trip to Cape Canaveral, Florida, following its previous mission. (credit: LabPadre)

The Falcon 9 rocket that launched NASA astronauts Doug Hurley and Bob Behnken on SpaceX's first crew mission in 2020 launched and landed for the 19th and final time just before Christmas, then tipped over on its recovery ship during the trip back to Cape Canaveral, Florida.

This particular booster, known by the tail number B1058, was special among SpaceX's fleet of reusable rockets. It was the fleet leader, having tallied 19 missions over the course of more than three-and-a-half years. More importantly, it was the rocket that thundered into space on May 30, 2020, on a flight that made history on several counts.

It was the first time a commercial rocket and spacecraft launched people into orbit, and ended a nine-year gap in America's ability to send astronauts into orbit from US soil, following the retirement of the space shuttle. This mission, known as Demo-2 and launched by SpaceX under contract with NASA, ended US reliance on Russian rockets to send crews to the International Space Station.

Enlarge / SpaceX's Falcon Heavy rocket lifted off Thursday night from NASA's Kennedy Space Center in Florida. (credit: SpaceX)

It seems like SpaceX did everything this year but launch 100 times.

On Thursday night, the launch company sent two more rockets into orbit from Florida. One was a Falcon Heavy, the world's most powerful rocket in commercial service, carrying the US military's X-37B spaceplane from a launch pad at NASA's Kennedy Space Center at 8:07 pm EST (01:07 UTC). Less than three hours later, at 11:01 pm EST (04:01 UTC), SpaceX's workhorse Falcon 9 launcher took off a few miles to the south with a payload of 23 Starlink Internet satellites.

The Falcon Heavy's two side boosters and the Falcon 9's first stage landed back on Earth for reuse.

A SpaceX Falcon Heavy rocket is seen outside the company's hangar at Kennedy Space Center, Florida. (credit: SpaceX)

SpaceX and the US Space Force thought they were ready to launch the military's mysterious X-37B spaceplane this week, but ground teams in Florida need to roll the Falcon Heavy rocket back into its hangar for servicing.

This is expected to push back the launch until at least late December, perhaps longer. SpaceX and Space Force officials have not divulged details about the problems causing the delay.

SpaceX called off a launch attempt Monday night at NASA's Kennedy Space Center in Florida to resolve a problem with a ground system. A senior Space Force official told Ars on Wednesday that additional issues will cause an additional delay in the launch.

Enlarge / SpaceX's Falcon Heavy rocket stands on Launch Complex 39A in Florida, hours before its scheduled liftoff with the military's X-37B spaceplane. (credit: Trevor Mahlmann/Ars Technica)

CAPE CANAVERAL, Florida—A SpaceX Falcon Heavy rocket is poised for launch as soon as Wednesday night from the Kennedy Space Center in Florida, and the US military's mysterious X-37B spaceplane is fastened atop the heavy-lifter for a ride into orbit.

Although the Space Force is keeping details about the military spaceplane's flight under wraps, we know it's heading into an unusual orbit, probably significantly higher than the X-37B's previous sojourns that stayed within a few hundred miles of Earth's surface.

SpaceX's launch team called off a launch attempt Monday night "due to a ground side issue" and reset for another launch opportunity as soon as Tuesday, then pushed the liftoff back another 24 hours until Wednesday night at 8:13 pm EST (01:13 UTC). When it lifts off, the Falcon Heavy will light 27 kerosene-fueled engines to power the rocket off its launch pad overlooking the Atlantic coastline.

Enlarge / A SpaceX Falcon 9 rocket with a reused booster stage and payload fairing is seen rolling out to its launch pad in Florida before a mission last month. (credit: SpaceX)

Amazon announced Friday that it has purchased three Falcon 9 rocket launches from SpaceX beginning in mid-2025 to help deploy the retail giant's network of Kuiper Internet satellites.

In a statement, Amazon said the SpaceX launches will provide "additional capacity" to "supplement existing launch contracts to support Project Kuiper’s satellite deployment schedule." SpaceX has its own broadband satellite fleet, with more than 5,100 Starlink spacecraft currently in orbit, making it a competitor with Amazon.

Last year, Amazon bought up most of the Western world's excess launch capacity from everyone but SpaceX, securing 68 rocket flights from United Launch Alliance, Arianespace, and Blue Origin to deploy thousands of satellites for the Kuiper broadband network. Amazon previously contracted with ULA for nine Atlas V launches to support the initial series of Kuiper launches, the first of which lifted off in October with Amazon's first two Kuiper prototype satellites. More Atlas Vs will start launching operational Kuiper satellites next year.

Enlarge / The crew access arm was installed this week on a new tower SpaceX has built at Space Launch Complex-40. (credit: SpaceX)

Welcome to Edition 6.19 of the Rocket Report! While we wait for SpaceX to launch the second full-scale test flight of Starship, a lot of the news this week involved companies with much smaller rockets. Astra is struggling to find enough funding to remain in business, and Virgin Galactic says it will fly its suborbital Unity spaceplane for the last time next year to focus on construction of new Delta-class ships that should be easier to turn around between flights. It's a tough time to raise money, and more space companies will face difficult decisions to stay alive in the months ahead.

As always, we welcome reader submissions, and if you don't want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets, as well as a quick look ahead at the next three launches on the calendar.

Virgin Galactic plans "pause" in flight operations. Virgin Galactic will reduce the frequency of flights of its current suborbital vehicle and stop them entirely by mid-2024 as it concentrates resources on the next generation of vehicles, Space News reports. This was unexpected news for anyone outside of the company. As Ars has previously reported, Virgin Galactic has ramped up the flight rate for its VSS Unity suborbital spaceplane to about one mission per month, a rather impressive cadence, especially when Blue Origin, the other player in the suborbital human spaceflight market, has not flown any people to space in more than a year.

Enlarge / The military's X-37B spaceplane landed last November to end the program's sixth mission. (credit: US Space Force/Staff Sgt. Adam Shanks)

The US military's reusable X-37B spaceplane will launch on the next flight of SpaceX's Falcon Heavy rocket, scheduled for December 7, officials announced on Wednesday.

This was unexpected because the spaceplane's six previous missions launched on medium-lift Atlas V or Falcon 9 rockets. This next mission, the seventh by an X-37B spaceplane, will fly on a heavy-lift launcher for the first time.

The payload for the next Falcon Heavy rocket was a secret before the military's announcement on Wednesday. The mission was known simply by the designation USSF-52, and it will take off from NASA's Kennedy Space Center in Florida.

Enlarge / A Falcon 9 rocket lifts off from Cape Canaveral Space Force Station on Friday night. (credit: SpaceX)

CAPE CANAVERAL, Florida—In three-and-a-half years of service, one of SpaceX's reusable Falcon 9 boosters stands apart from the rest of the company's rocket inventory. This booster, designated with the serial number B1058, has now flown 18 times. For its maiden launch on May 30, 2020, the rocket propelled NASA astronauts Doug Hurley and Bob Behnken into the history books on SpaceX's first mission to send people into orbit.

This ended a nine-year gap in America's capability to launch astronauts into low-Earth orbit and was the first time a commercial spacecraft achieved this feat. At that time, the rocket was fresh from SpaceX's factory in Southern California, glistening white in color, with a bright red NASA "worm" logo emblazoned on the side.

Over the course of its flights to space and back, that white paint has darkened to a charcoal color. Soot from the rocket's exhaust has accumulated, bit by bit, on the 15-story-tall cylinder-shaped booster. The red NASA worm logo is now barely visible.

Enlarge / A Long March 2F rocket climbed into space Thursday with a three-man crew heading for China's Tiangong space station. (credit: Pedro Pardo/AFP via Getty Images)

Welcome to Edition 6.17 of the Rocket Report! Two Asian powers notched achievements in their human spaceflight programs this week. In China, three astronauts launched to begin a six-month expedition on the Tiangong space station. With this mission, China is settling into a routine of operations on the Tiangong complex. Elsewhere in Asia, India took strides toward launching its own astronauts with a successful test of a launch abort system for the country's Gaganyaan spacecraft, which could fly people into low-Earth orbit in 2025. This is welcome news for US officials because India could help offer a counterweight to China's dominance (among Asian countries) in spaceflight.

As always, we welcome reader submissions, and if you don't want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets, as well as a quick look ahead at the next three launches on the calendar.

India tests escape system for human-rated crew capsule. India aced the first in-flight test of the crew escape system for the country's Gaganyaan spacecraft Saturday, Ars reports. With this flight, India tested the set of rocket motors and parachutes that would propel the spacecraft away from a failing launch vehicle, a dramatic maneuver that would save the lives of everyone on board. An unpressurized version of the Gaganyaan capsule launched, without anyone aboard, on top of a single-stage liquid-fueled rocket. About a minute later, soon after the rocket surpassed the speed of sound, the vehicle triggered the abort maneuver, and the capsule separated from the booster to parachute into the sea. By all accounts, Indian officials were thrilled with the outcome of the test flight.

Enlarge / A Falcon 9 rocket climbs into orbit from Cape Canaveral, Florida, with 22 Starlink satellites Tuesday night in this long-exposure photo. (credit: SpaceX)

Earlier this week, SpaceX launched for the 75th time this year, continuing a flight cadence that should see the company come close to 100 missions by the end of December.

SpaceX plans to kick its launch rate into a higher gear in 2024. This will be largely driven by launches of upgraded Starlink satellites with the ability to connect directly with consumer cell phones, a service SpaceX calls "Starlink Direct to Cell," a company official told Ars this week.

The goal next year is 12 launches per month, for a total of 144 Falcon rocket flights. Like this year, most of those missions will be primarily devoted to launching Starlink broadband satellites. So far in 2023, more than 60 percent of SpaceX's launches have delivered the company's own Starlink satellites into orbit.

Enlarge / SpaceX said this week that Starship is stacked and ready to fly its second test flight. (credit: SpaceX)

In a remarkably frank discussion this week, several senior SpaceX officials spoke with Ars Technica on background about how working with the Federal Aviation Administration has slowed down the company's progress not just on development of the Starship program, but on innovations with the Falcon 9 and Dragon programs as well.

The SpaceX officials said they want to be clear that the FAA is doing a reasonably good job with the resources it has, and that everyone supports the mission of safe spaceflight. However, they said, the FAA needs significantly more people working in its licensing department and should be encouraged to prioritize missions of national importance.

In recent months, according to SpaceX, its programs have had to compete with one another for reviews at the FAA. This has significantly slowed down the Starship program and put development of a Human Landing System for NASA's Artemis program at risk. Inefficient regulation, the officials said, is decreasing American competitiveness as space programs in China and elsewhere around the world rise.

Enlarge / A SpaceX Falcon Heavy rocket rides a column of thrust off its launch pad Friday at NASA's Kennedy Space Center in Florida. (credit: Trevor Mahlmann/Ars Technica)

CAPE CANAVERAL, Florida—A roughly 3-ton spacecraft launched Friday from NASA's Kennedy Space Center in Florida to begin a six-year trip to an enigma in the asteroid belt, an unusual metallic world the size of Massachusetts that could hold clues about the formation of Earth and other rocky planets.

This mission, named Psyche, will survey its namesake asteroid for at least 26 months, moving to different altitudes to map the metal world with three science instruments. Like all missions exploring the Solar System, the Psyche spacecraft has a long journey to reach its destination, covering some 2.2 billion miles (3.6 billion kilometers) with the help of plasma engines.

No one knows what the spacecraft will find when it reaches the asteroid Psyche. The best images of the asteroid captured through telescopes only show Psyche as a fuzzy blob a few pixels wide. Scientists know it is dense and at least partially made of metal, primarily iron and nickel. The leading hypothesis among Psyche's science team is that the asteroid is likely a leftover remnant from the early history of the Solar System more than 4.5 billion years ago, the exposed core of a failed planet that may have had its outer layers of rock blasted away during collisions with other objects in that chaotic time.

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You can consider this the start of NASA's Falcon Heavy era. The launch of the Psyche asteroid mission this week is the opening act among five launches the space agency has directly reserved on SpaceX's heavy-lift rocket over the next few years.

These Falcon Heavy flights will cut across NASA's portfolio of robotic space missions, dispatching probes deep into the Solar System, deploying a flagship-class astronomical observatory, sending up a weather satellite, and launching the keystone to NASA's Gateway mini-space station around the Moon.

The launch of the Psyche asteroid explorer, scheduled for Thursday from Launch Complex 39A at the Kennedy Space Center in Florida, kicks it off. "We’ve been preparing for this for several years, and we’ve benefited from SpaceX's manifest. They’ve launched four Falcon Heavies since last November," said Tim Dunn, a NASA launch director based at the Florida spaceport.