Kyoto and Hiroshima University researchers found that grains Hayabusa2 brought back from asteroid Ryugu begin altering within weeks on Earth. Here is how the decay starts with an iron sulfide, what it means for Bennu and Phobos samples, and how Japan is reacting.
JAXA's H3 rocket No. 6 reached orbit on June 12, 2026, debuting the booster-less, lowest-cost Type 30 and resuming flights after a six-month grounding. But an object seen falling near the engines is now under investigation.
When Artemis II passed behind the Moon, the crew went 40 minutes without a signal. A sustained lunar presence needs always-on infrastructure, not one-shot mission links. We trace what KDDI, the carrier that once relayed Japan's international calls, is building with laser comms and multi-hop relays, and ask how close it really is.
On July 5, 2026, at 6:30 p.m. Japan time, JAXA's Hayabusa2 passed asteroid Torifune at roughly 5.3 km per second, crossing the 500-meter body in about 0.1 seconds. Here's why this ultra-fast flyby was so hard, how a body-fixed camera caught it, and why it matters for planetary defense after NASA's DART.
Japan's H3 Rocket No. 6 was postponed over poor weather and flew successfully on June 12, 2026. The booster-less test flight carried six small satellites: deorbit sails, a 1 km space tether, a day-and-night telescope, and a French sat that hunts ships gone dark. Here is what each one does.
Tohoku University spinoff Space Quarters has demonstrated its DAIQ orbital assembly robot system on a ground model, showing three kinds of small robots cooperating to pick, place, and weld building panels into a larger structure. We look at how it compares to NASA's cancelled OSAM-1 and DARPA's NOM4D, and what makes Japan's robotics approach distinct.
Japan's new cargo ship HTV-X1 reentered the atmosphere on the night of May 26, 2026, completing a roughly seven-month mission (JAXA announced it the next day). In its final three months it gathered on-orbit data on next-gen space solar cells, including a domestic perovskite made by Ricoh, and received a radio signal from the ground. Here's why perovskite in space is a different story from perovskite on rooftops.
JAL, JALUX and ispace have unveiled ARGO PROJECT, the first lunar transport service run by an airline. A box called Möbius Ark will carry cultural items to the Moon on ispace's Mission 3 in 2028. Here is why a 75-year-old airline is moving into space logistics.
Japanese Unreal Engine studio Historia has unveiled REAL MOON Studio, a lunar digital twin recreating a 240km by 240km stretch of the Moon's south pole. Built on joint research with JAXA, it lets engineers rehearse rover routes, preview camera shots, and plan lunar bases - a look at how game-engine technology is quietly joining the global Moon race.
On April 13, 2029, the 450m asteroid Apophis will pass just 32,000 km above Earth. Japan and Europe are joining forces on RAMSES, the next planetary defense mission after NASA's DART. JAXA provides the infrared imager, solar panels, and H3 rocket launch as a rideshare with DESTINY+, stepping up as US budget cuts threaten its own Apophis mission.
A Japanese team led by NAOJ has detected an atmosphere on a small trans-Neptunian object beyond Pluto for the first time, using a stellar occultation observed simultaneously from three sites across Japan. Here is how the pro-amateur collaboration worked, and why it rewrites textbooks on the outer solar system.
Yamaguchi's premium sake brand Dassai and Japanese engineering giant Mitsubishi Heavy Industries brewed sake in space for the first time in human history. The result was a single 100ml bottle, priced at about $700,000, and it sold. Inside the Dassai MOON Project, the long-term plan to build a brewery on the Moon, plus practical brewery-tour information for visitors to Iwakuni, Yamaguchi.
JAXA confirms H3 No.8 failure was caused by satellite adapter delamination. On June 12, the minimum 'Type 30' configuration without boosters launched successfully for the first time. Japan's environmental satellites vs China's Daqi-2.
Waseda University, JAXA, the University of Tokyo, and Keio University have completed Japan's first Mach 5 combustion test using a hypersonic experimental aircraft. How does Japan's passenger-focused strategy compare with the US (Hermeus, Lockheed) and a militarily advanced China?
Chuya Koyama's Space Brothers manga concludes June 11, 2026 in Morning issue 28 after 18 years and 432 chapters. We break down the 2-week cover treatment, 35 million copies sold, Crunchyroll anime streaming, and how fans worldwide are saying goodbye.
NTT and JAXA have completed the world's first orbital demonstration of satellite MIMO communication and IoT sensing technology aboard a low-Earth orbit satellite. By applying MIMO, the same technology that speeds up your smartphone, to space, they aim to double satellite data transmission capacity. The breakthrough could bring IoT connectivity to mountains, oceans, and remote islands where no cell towers exist.
Japanese lunar startup ispace has unveiled 'Lunar Connect,' a communication and positioning service using lunar orbiting satellites. Partnering with KDDI for ground stations and planning 5 satellites by 2030, ispace is pivoting from a transport company to a space infrastructure provider. The new unified ULTRA lander marks another strategic shift.
ispace's Improvement Task Force, co-chaired by MIT and Keio professors, has released 7 recommendations after analyzing two failed lunar landings using CAST methodology. With the new integrated ULTRA lander, JAXA SLIM technology transfer, and restructured missions through 2030, ispace is emerging as a role model for how space startups can learn from failure.
Space Entry Inc. launches 'Minna no Haro,' an autonomous space robot inspired by Gundam's iconic Haro, bound for the ISS Kibo module. Designed by legendary mecha designer Kunio Okawara and running Zephyr RTOS, the project achieves three world firsts and invites public participation through crowdfunding.
Renesas Electronics' Intersil-brand radiation-hardened ICs are aboard NASA's Artemis 2 crewed lunar mission, powering critical subsystems in the Orion spacecraft and SLS rocket. Discover the 60+ year heritage behind these space-grade chips and what Japan's role in the $1.8 billion rad-hard semiconductor market means for the future of space exploration.