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In today's signal, we start with H3 Returns to Flight and also look at Space Force GPS 3F Order. Plus the latest in Missions & Launches, Science, and Policy & Defense.

JAXA's H3 rocket completed a successful return-to-flight mission Friday from Tanegashima Space Center, delivering six small satellites to orbit on the vehicle's eighth overall flight and the first for its new three-engine configuration. The December failure, which destroyed Japan's Michibiki 5 navigation satellite, was traced to a payload adapter anomaly: excessive shock during fairing separation caused the satellite to detach prematurely and burn up in the atmosphere. Friday's payload manifest included an Earth observation satellite from the Tokyo Institute of Technology, a debris capture demonstrator from Shizuoka University, an RF maritime surveillance satellite from Unseen Labs, a star formation science satellite from Kyushu Institute of Technology, and a pair of satellites testing atmospheric drag as a debris mitigation technique. The clean mission restores confidence in H3 ahead of future government and commercial launches on the vehicle.

Source: Payload Space

A record-breaking spectrum from JWST has given astronomers their clearest answer yet on what the early universe's mysterious 'little red dots' actually are. The target, a faint object called GLIMPSE-17775 spotted roughly 600 million years after the Big Bang, yielded more than forty spectral lines after 30 hours of observation, amplified to the equivalent of 80 by gravitational lensing from a foreground galaxy cluster. The data point to a rapidly feeding supermassive black hole wrapped in dense gas that absorbs its own violent radiation and re-emits it as a softer red glow, making the whole system look almost starlike from a distance. Sixteen iron emission lines, helium signatures, and electron-scattering broadening all support the same model, and the explanation also resolves why these objects appear so faint in X-rays. Lead researcher Vasily Kokorev says a definitive answer on what powers these objects could come within a year or two.

Source: Universe Today

A tense standoff aboard the International Space Station ended with Roscosmos agreeing to decommission the PrK module, a node that has carried long-standing structural cracks NASA considered a serious depressurization risk. The confrontation escalated when Russian cosmonauts approached the module with a saw to remove a load-bearing bracket while Roscosmos ignored ground-based NASA communications. NASA directed Crew 12 and astronaut Chris Williams into SpaceX's Crew Dragon Freedom as a safe haven, a move that finally prompted Russia to stand down. Under the agreement, cosmonauts will no longer enter or pressurize PrK, though Progress cargo vehicles can still use its docking port for fluid transfers. Russia will need to route supplies through other ports, and NASA considers the depressurization risk it had quietly accepted for years now effectively retired.

Source: Ars Technica – Space

Astrobotic publicly revealed Griffin-1 on June 15, the lander selected by NASA to support its Moon Base II mission as part of the CLPS program. At roughly 15 feet wide and capable of carrying 625 kilograms to the lunar surface, Griffin is nearly twice the footprint of Astrobotic's earlier Peregrine vehicle, which failed to reach the Moon after a propellant leak in January 2024. Griffin-1 will carry 10 payloads from six countries, including ESA's LandCam-X precision landing camera and Astrolab's FLIP rover, which will be integrated at Kennedy Space Center before launch. The lander ships to JPL next week for environmental testing, with a Falcon Heavy launch targeting late 2026.

Source: Space.com

Dutch sounding rocket firm T-Minus Engineering launched its Barracuda vehicle from Spaceport Nova Scotia on June 10, but an anomaly late in the boost phase cut the mission short and scrubbed a planned second flight the same day. The nature of the anomaly has not been disclosed. The June 10 attempt was also the second consecutive Barracuda launch to underperform: a November 2025 flight fell short of the 100-kilometer Kármán line despite being initially described as successful. Adding to the uncertainty, Maritime Launch Services quietly revised Barracuda's stated altitude capability from 120 kilometers down to roughly 80 kilometers after the latest flight, without explanation.

Source: European Spaceflight

Upcoming Launches

The U.S. Space Force has contracted Lockheed Martin to build GPS 3F satellites 23 and 24 for $514 million, bringing the total under a 2018 indefinite-delivery contract to 14 spacecraft and roughly $4.6 billion. GPS 3F improves on the previous GPS 3 design with a digital navigation payload, upgraded civilian signals, and Regional Military Protection, a feature that concentrates the encrypted military signal over specific geographic areas to resist jamming. The order follows SpaceX's April launch of the final GPS 3 satellite, closing out that production run. The first GPS 3F launch has not yet been scheduled.

Source: SpaceNews

Israel's Gilat Satellite Networks has agreed to pay $157.5 million for most of Comtech's satellite and space communications business, including anti-jam tactical modems for the U.S. Army and Air Force, ground systems, and high-powered amplifiers. The deal flips a six-year-old dynamic: Comtech had tried to buy Gilat for $533 million in 2020 before COVID derailed the merger and triggered a $70 million breakup fee. Gilat says the acquisition will push its defense revenue share from roughly 25% to 40% of total sales and lift annual revenue past $700 million. Closing requires CFIUS approval and is expected before year-end.

Source: SpaceNews

SpaceX closed its first trading day at $161.11, up 19% from its $135 IPO price, while most other publicly traded space companies fell sharply. Rocket Lab dropped 10.8%, AST SpaceMobile fell 15.5%, and Virgin Galactic lost nearly a third of its value. Industry analysts attribute the selloff largely to space-focused investors rotating into SpaceX rather than a broader loss of confidence in the sector. More volatility is likely ahead: space ETFs may add SpaceX shares in coming weeks, the company is expected to join the NASDAQ-100 in early July, and an insider lockup tied to Q2 earnings could temporarily pressure the stock price.

Source: Payload Space

Twenty to thirty hours of NIRSpec exposure on two galaxies seen roughly 600 million years after the Big Bang has produced spectral signatures that standard stellar models cannot reproduce. The observations, targeting CEERS-1019 and CEERS-1025 at redshift 8.7, show strong stellar wind features and helium emission that only fit models including very massive stars exceeding 100 solar masses. The statistical improvement over models without such stars is large enough to be decisive, and the best-fit solutions imply stellar populations just 1.5 to 2 million years old with unusually high rates of ionizing photon output. If confirmed, the result suggests early galaxies formed a disproportionate share of extreme-mass stars, which would affect how astronomers model chemical enrichment and reionization in the young universe.

Source: arXiv astro-ph

Three independent analyses of Fermi-LAT gamma-ray data, stacking signals across galaxy cluster catalogs including eROSITA and DESI, have turned up a consistent trio of emission lines near 70, 40, and 13 GeV. The line energies match the predicted photon outputs when two WIMPs (weakly interacting massive particles) annihilate into gamma-ray pairs, Z bosons, and Higgs bosons, pointing to particle masses of roughly 67 and 71 GeV. The strongest result reaches 5.6-sigma statistical significance in cross-correlation analyses, though the stacking result sits at a more modest 2.3-sigma. The Galactic center's long-debated GeV excess is also broadly consistent with the continuum emission expected from the same WIMP candidates, lending the signal additional circumstantial support pending independent confirmation.

Source: arXiv astro-ph

DARPA released a request for information on June 12 asking the space industry how the U.S. could restore disabled or destroyed satellites within hours to weeks during a conflict. The agency wants concepts spanning the full architecture: modular buses, plug-and-play payloads, software-defined spacecraft, rapid manufacturing, on-orbit assembly, and alternative navigation systems. The emphasis on reconfigurable multi-mission designs suggests DARPA is less interested in launching identical replacements than in building systems that can adapt to whatever capacity survives. Responses are due July 8, after which DARPA will assess which technical approaches merit further development.

Source: SpaceNews

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