Enlarge / A discolored plume of exhaust was visible beneath the Super Heavy booster's Raptor engines on the Starship rocket's April 20 test flight, a likely indication of a propellant leak or fire in the engine compartment. (credit: Patrick T. Fallon/AFP via Getty Images )

The Federal Aviation Administration said Friday it has closed an investigation into the problems SpaceX encountered on its first full-scale Starship test launch in April, but federal regulators won't yet give a green light for the next Starship flight.

"The closure of the mishap investigation does not signal an immediate resumption of Starship launches at Boca Chica," the FAA said in a statement, referring to the location of SpaceX's Starship launch facility at Boca Chica Beach in South Texas.

The nearly 400-foot-tall Starship rocket, the largest ever built, is standing on its launch pad in Texas for the upcoming test flight, which could happen before the end of this month, pending FAA approval.

Enlarge / A Japanese H-IIA rocket lifts off from the Tanegashima Space Center with an X-ray astronomy satellite and a robotic Moon lander. (credit: Photo by STR/JIJI Press/AFP via Getty Images )

Welcome to Edition 6.10 of the Rocket Report! A Japanese spacecraft has joined the international flock of missions traveling to the Moon this year, but you'll need to practice patience on this one. It will take about four months for Japan's small lander to get into lunar orbit, then more weeks to align with the mission's target landing site. We're crossing our fingers this lander will see the same success as India's Chandrayaan 3 mission.

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 launches its first solar research satellite . Less than two weeks after landing its first mission on the Moon, India launched a solar observatory on September 2 toward an orbit nearly a million miles (1.5 million kilometers) from Earth around the L1 Lagrange point. This mission, named Aditya-L1, lifted off on India's workhorse Polar Satellite Launch Vehicle and entered orbit around the Earth, where the spacecraft is expected to perform five maneuvers to escape Earth's gravity and head to its distant observation post.

Enlarge / The Starship vehicle is stacked and ready to go for its second test flight. (credit: SpaceX)

On Tuesday, SpaceX stacked its Starship rocket on top of a Super Heavy booster in South Texas, beginning final preparations for a second launch attempt of the massive vehicle.

After the stacking operations were complete, SpaceX founder Elon Musk posted on X, the site formerly known as Twitter, that "Starship is ready to launch, awaiting FAA license approval."

That caveat is a big one because the Federal Aviation Administration is still reviewing paperwork and data from SpaceX about the first launch attempt of Starship in April 2023. That flight ended after about 90 seconds due to engine problems and other issues with the booster. The FAA has been reviewing data from that accident, including the environmental implications at the launch site and the delayed activation of the rocket's flight termination system.

Enlarge / SpaceX's Starship rocket lost control a few minutes after launch from South Texas on April 20. (credit: Jonathan Newton/The Washington Post via Getty Images )

The Federal Aviation Administration is now reviewing a mishap investigation report submitted by SpaceX regarding the company's April test flight of its giant Starship rocket, a spokesperson for the regulatory agency said Tuesday.

The milestone is noteworthy because it signals SpaceX has completed its investigation into the Starship test launch on April 20 , which ended about four minutes after liftoff following engine failures and other problems during ascent. Now comes the FAA's review of SpaceX's investigation, fulfilling the agency's role as the regulator charged with ensuring public safety during commercial launch operations.

"When a final mishap report is approved, it will identify the corrective actions SpaceX must make," an FAA spokesperson told Ars. "Separately, SpaceX must modify its license to incorporate those actions before receiving authorization to launch again.

Enlarge / The Super Heavy booster for SpaceX's next Starship test flight is raised onto its launch mount at the Starbase facility in South Texas. (credit: SpaceX )

Welcome to Edition 6.04 of the Rocket Report! SpaceX has a Super Heavy booster on the launch pad in Texas a lot sooner than many thought. There was some pretty extensive damage at the launch site in the aftermath of the Starship test launch in April, SpaceX made quick work with repairs and upgrades to beef up the pad. Meanwhile, SpaceX's Falcon 9 launcher, Rocket Lab's Electron, and China's rocket fleet show no signs of slowing down.

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.

China's Galactic Energy launches sixth successful mission . Galactic Energy, one of several new Chinese startup launch companies, launched its sixth consecutive successful satellite delivery mission on July 22, Space News reports . The company's solid-fueled Ceres 1 rocket lifted off from the Jiuquan launch base in the Gobi Desert with two small satellites on board. Galactic Energy is also developing a medium-lift rocket named Pallas 1 that is designed to eventually be recoverable and reusable.

Enlarge / In this illustration, SpaceX's Starship vehicle is seen landing on the Moon. (credit: NASA)

Last Friday, NASA awarded a $3.4 billion contract to a team led by Blue Origin for the design and construction of a second Human Landing System to fly astronauts down to the Moon.

The announcement capped a furious, two-year lobbying campaign by Blue Origin owner Jeff Bezos to obtain a coveted piece of NASA's Artemis Program. NASA also notched a big win, gaining the competition with SpaceX it sought for landing services. But there is a more profound takeaway from the announcement.

After losing the initial lander contract to SpaceX two years ago, Blue Origin did not just bid a lower price this time around. Instead, it radically transformed the means by which it would put humans on the Moon. The Blue Moon lander is now completely reusable; it will remain in lunar orbit, going up and down to the surface. It will be serviced by a transport vehicle that will be fueled in low-Earth orbit and then deliver propellant to the Moon. This transporter, in turn, will be refilled by multiple launches of the reusable New Glenn rocket.

Enlarge / SpaceX's Starship launch site is located in coastal South Texas. (credit: SpaceX)

Several environmental groups filed a lawsuit against the Federal Aviation Administration (FAA) on Monday, saying that the agency had not sufficiently regulated the launch of SpaceX's Starship rocket from South Texas.

In the lawsuit, filed in federal court in Washington, DC, the groups say that the FAA failed to account for the damage caused by testing and launching the Starship rocket, which results in "intense heat, noise, and light that adversely affects surrounding habitat areas and communities, which included designated critical habitat for federally protected species as well as National Wildlife Refuge and State Park lands."

During the initial launch of the Starship rocket, on April 20, the environmental organizations say the launch "scattered debris and ash over a large area," including adjacent lands that provide a habitat for endangered species.

Enlarge / Super Heavy ascends on a pillar of flame in April 2023. (credit: SpaceX)

In a wide-ranging talk on Saturday night, SpaceX founder Elon Musk provided a review of the debut launch of the Starship rocket on April 20. The bottom line, he said, is that the flight of the vehicle slightly exceeded his expectations and that damage to the launch site was not all that extensive. He expects Starship to fly again in as few as two or three months.

"Basically the outcome was roughly sort of what I expected and maybe slightly exceeded my expectations," he said. " And I'm glad to report that the pad damage is actually quite small, and it looks like it can be repaired quite quickly. It was actually just good to get this vehicle off the ground because we've made so many improvements in Booster 9 and beyond."

Musk spoke for about an hour during a Twitter spaces event, responding to questions from several journalists as well as spaceflight enthusiasts. For those unable to listen, what follows is a summary of what Musk said.