Japanese cargo spacecraft leaves ISS today - Space News (Mar 6, 2026)

Let's start with what's happening right now. As we're recording this afternoon, Japan's HTV-X1 cargo spacecraft is preparing to depart the International Space Station. This unmanned freighter has been docked to the orbiting lab, where it delivered about twelve thousand pounds of supplies, experiments, and equipment to support both NASA and international partner research. After undocking, HTV-X1 will remain in orbit for several more months, conducting its own scientific experiments before being commanded to reenter Earth's atmosphere. This marks another successful resupply mission in the ongoing effort to keep the space station running smoothly.

Now, to that major Artemis news we teased. NASA announced this week that it's fundamentally restructuring its lunar exploration program. Here's what changed: Artemis III, which was originally supposed to land astronauts on the Moon, is now being retooled as a low Earth orbit mission focused on testing hardware and demonstrating rendezvous and docking procedures with commercial lunar landers. The actual crewed Moon landing has been pushed to Artemis IV, now targeted for 2028. NASA Administrator Jared Isaacman explained the reasoning. The agency wants to move faster, eliminate delays, and introduce competition. Instead of relying solely on SpaceX's Starship, NASA is reopening the competition to include Blue Origin's lunar lander as well. It's a strategic shift that prioritizes progress over the original timeline.

Speaking of SpaceX, their Starship program continues to accelerate. Ship 39, the first Version 3 Starship prototype, is undergoing cryogenic testing at the Texas test facility as we speak. This new variant features significant improvements, particularly in the flap design and structural systems. Elon Musk has expressed high confidence that Version 3 will achieve full reusability. SpaceX is still targeting a March launch window for the first integrated flight test of this new configuration. Booster 19 is also being prepared, with its raptor engines already installed. The company is clearly pushing hard to demonstrate the next generation of Starship capability.

Moving from Earth orbit to the distant universe, astronomers are continuing to puzzle over unexpected discoveries from the James Webb Space Telescope. The latest head-scratcher involves a galaxy called MoM-z14, which existed just 280 million years after the Big Bang. That's remarkably early for such a bright galaxy to exist. In fact, Webb is finding far more bright galaxies in the early universe than current models predict—roughly 100 times more. Meanwhile, other research teams using Webb and ground-based observatories have identified populations of dusty, star-forming galaxies that also formed far earlier than expected. These discoveries are forcing astronomers to reconsider how galaxies actually form and evolve in the early cosmos.

Finally, let's look beyond American and European space efforts. China announced its 2026 space agenda this week, confirming plans for two crewed missions and one cargo resupply mission to its space station. The announcements include a historic milestone: astronauts from Hong Kong and Macao will carry out spaceflight missions as early as this year. One crew member from Shenzhou-23 will also conduct an extended one-year stay in space, a significant experiment in long-duration spaceflight. Beyond the near term, China continues progressing toward its goal of landing Chinese astronauts on the Moon before 2030. Development of the Long March-10 rocket, the Mengzhou spacecraft, and the Lanyue lunar lander is proceeding on schedule, with multiple critical tests already completed. China is also welcoming international participation, with a Pakistani astronaut scheduled to fly to the Chinese space station as a payload specialist. It's a clear signal that space exploration continues to become increasingly international.