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  • Rocket Report: Rocket Lab to demo cargo delivery; America’s new ICBM in trouble

    Welcome to Edition 7.43 of the Rocket Report! There’s been a lot of recent news in hypersonic testing. We cover some of that in this week’s newsletter, but it’s just a taste of the US military’s appetite for fielding its own hypersonic weapons, and conversely, the Pentagon’s emphasis on the detection and destruction of an enemy’s hypersonic missiles. China has already declared its first hypersonic weapons operational, and Russia claims to have them, too. Now, the Pentagon is finally close to placing hypersonic missiles with combat units. Many US rocket companies believe the hypersonics sector is a lucrative business. Some companies have enough confidence in this emerging market—or lack of faith in the traditional space launch market—to pivot entirely toward hypersonics. I’m interested in seeing if their bets pay off.

    As always, we welcome reader submissions. 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.

    Rocket Report: Rocket Lab to demo cargo delivery; America’s new ICBM in trouble

    Stratolaunch tests reusable hypersonic rocket plane. Stratolaunch has finally found a use for the world’s largest airplane. Twice in the last five months, the company launched a hypersonic vehicle over the Pacific Ocean, accelerated it to more than five times the speed of sound, and autonomously landed at Vandenberg Space Force Base in California, Ars reports. Stratolaunch used the same Talon-A vehicle for both flights, demonstrating its reusability, a characteristic that sets it apart from competitors. Zachary Krevor, Stratolaunch’s president and CEO, said his team aims to ramp up to monthly flights by the end of the year.

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  • NASA just swapped a 10-year-old Artemis II engine with one nearly twice its age

    A couple of weeks ago, ground teams at NASA’s Kennedy Space Center in Florida removed one of the four main engines from the Space Launch System rocket slated to send four astronauts on a voyage around the Moon next year.

    NASA officials ordered the removal of one of the massive rocket’s RS-25 main engines after discovering a hydraulic leak on the engine’s main oxidizer valve actuator, which controls the flow of super-cold liquid oxygen propellant into the engine’s main combustion chamber, an agency spokesperson told Ars.

    In its place, technicians installed another RS-25 engine from NASA’s inventory to the bottom of the rocket’s core stage, which is standing vertical on its mobile launch platform inside the cavernous Vehicle Assembly Building at Kennedy. Teams began integrating the replacement engine with the rocket last Friday and are in the process of firmly securing it in the Engine 4 position on the core stage, the NASA spokesperson said.

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  • Rocket Report: Stoke is stoked; sovereignty is the buzzword in Europe

    Welcome to Edition 7.37 of the Rocket Report! It’s been interesting to watch how quickly European officials have embraced ensuring they have a space launch capability independent of other countries. A few years ago, European government satellites regularly launched on Russian Soyuz rockets, and more recently on SpaceX Falcon 9 rockets from the United States. Russia is now non grata in European government circles, and the Trump administration is widening the trans-Atlantic rift. European leaders have cited the Trump administration and its close association with Elon Musk, CEO of SpaceX, as prime reasons to support sovereign access to space, a capability currently offered only by Arianespace. If European nations can reform how they treat their commercial space companies, there’s enough ambition, know-how, and money in Europe to foster a competitive launch industry.

    As always, we welcome reader submissions. 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.

    Rocket Report: Stoke is stoked; sovereignty is the buzzword in Europe

    Isar Aerospace aims for weekend launch. A German startup named Isar Aerospace will try to launch its first rocket Saturday, aiming to become the first in a wave of new European launch companies to reach orbit, Ars reports. The Spectrum rocket consists of two stages, stands about 92 feet (28 meters) tall, and can haul payloads up to 1 metric ton (2,200 pounds) into low-Earth orbit. Based in Munich, Isar was founded by three university graduate students in 2018. Isar scrubbed a launch attempt Monday due to unfavorable winds at the launch site in Norway.

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  • NASA’s moon rocket meets its side boosters for crewed Artemis II voyage

    NASA’s much-anticipated Artemis II mission has experienced multiple delays in recent years, with the agency currently targeting no earlier than February 2026 for a flight that will send four astronauts on a voyage around the moon.

    The Artemis II astronauts, as well as folks following the mission preparations, will be pleased to learn that NASA recently lifted the SLS rocket’s core stage into position, joining it to the two solid rocket boosters in essential work carried out inside the Vehicle Assembly Building at the Kennedy Space Center.

    “The core stage is the largest component of the rocket, standing 212 feet tall,” NASA said in an update posted on its website this week. “The stage is the backbone of the rocket, supporting the launch vehicle stage adapter, interim cryogenic propulsion stage, Orion stage adapter, and the Orion spacecraft for the agency’s crewed Artemis II mission.”

    Artemis II

    NASA’s successful Artemis I mission flew an uncrewed Orion spacecraft around the moon in 2022. The Artemis II test flight will send astronauts Christina Koch, Victor Glover, Reid Wiseman, and Jeremy Hansen on the same route, orbiting the moon before returning to Earth in a mission expected to last about 10 days.

    The voyage will help to confirm the foundational systems and hardware needed for human deep space exploration, which could eventually involve crewed missions to Mars.

    The immediate goal, however, is to return humans to the lunar surface in the Artemis III mission that NASA is currently targeting for 2027.

    The Artemis II astronauts have been in training ever since they were announced for the mission in April 2023. NASA has been sharing occasional updates about their preparations, which have included work on safely exiting from the Orion spacecraft should an emergency situation occur immediately after splashdown at the end of the mission.

    Gl0ver and Wiseman also recently appeared in a NASA video explaining how they’ll be putting the Orion spacecraft through its paces during what should be an incredible lunar adventure.

  • As preps continue, it’s looking more likely NASA will fly the Artemis II mission

    Late Saturday night, technicians at Kennedy Space Center in Florida moved the core stage for NASA’s second Space Launch System rocket into position between the vehicle’s two solid-fueled boosters.

    Working inside the iconic 52-story-tall Vehicle Assembly Building, ground teams used heavy-duty cranes to first lift the butterscotch orange core stage from its cradle in the VAB’s cavernous transfer aisle, the central passageway between the building’s four rocket assembly bays. The cranes then rotated the structure vertically, allowing workers to disconnect one of the cranes connected to the bottom of the rocket.

    That left the rocket hanging on a 325-ton overhead crane, which would lift it over the transom into the building’s northeast high bay. The Boeing-built core stage weighs about 94 tons (85 metric tons), measures about 212 feet (65 meters) tall, and will contain 730,000 gallons of cryogenic propellant at liftoff. It is the single largest element for NASA’s Artemis II mission, slated to ferry a crew of astronauts around the far side of the Moon as soon as next year.

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