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🚀 Space Pulse · 2026-09-09 22:01 UTC

SPACE PULSE

Wednesday, September 10, 2026 — Daily Space & Astronomy Briefing

⚡ TL;DR

Artemis II is confirmed complete, with crew veterans Glover and Wiseman already transitioning to emeritus roles at JSC, marking a genuine post-moonshot milestone for NASA. [1] A busy week blends geomagnetic storm watches, Curiosity hitting 5,000 sols on Mars, and a packed launch manifest through late September. [2] [3]

🚀 LAUNCHES

UPCOMING THIS WEEK

  • Long March 8A with an undisclosed payload is the nearest launch on the pad, targeted for September 11 at 16:00 UTC by China Aerospace Science and Technology Corporation. [4]
  • SpaceX Starship Flight 14, the third flight of the V3 vehicle, is targeting no earlier than September 15 and would mark the first Starship mission to deploy Starlink satellites into stable LEO. [5]
  • Orienspace Technology's Gravity-1 rocket is scheduled for September 15 at 21:55 UTC carrying an as-yet-undisclosed payload. [6]
  • SpaceX Falcon 9 Block 5 will lift USSF-259, a classified Space Force mission, on September 16 at 01:00 UTC. [7]
  • China Aerospace Science and Technology Corporation has a Long March 12 mission tentatively confirmed for around September 17, payload details still withheld. [8]
  • SpaceX Falcon 9 Block 5 is set to launch Starlink Group 15-27, a batch of 27 broadband satellites, on September 20 at 01:47 UTC. [9]

🔭 DISCOVERIES

TRANS-NEPTUNIAN OBJECTS REMEMBER THEIR ORIGINS

  • NASA's Hubble and JWST jointly studied small Trans-Neptunian Objects for the first time, spotting some of the faintest TNOs ever directly imaged and finding fewer red objects than models predicted. [10]
  • A separate JWST NIRCam survey using shift-and-stack and machine-learning techniques definitively detected 27 ultra-faint TNOs, probing the luminosity function of the outer solar system's smallest bodies.
  • Combined JWST and HST optical-to-near-infrared color measurements characterized TNOs smaller than 40 km, providing the first color statistics for objects at that size scale.
  • A new study fits the size and mass distribution of cold classical TNOs across absolute magnitudes 5 to 13, using recent JWST data to constrain this pristine planetesimal population.

HUBBLE IMAGES A SUPERBUBBLE NEXT DOOR

  • Hubble imaged nebula N44 in the Large Magellanic Cloud on September 3, 2026, revealing a central void — a superbubble — spanning roughly 210 by 140 light-years driven by stellar winds and supernovae.

EXOPLANET ATMOSPHERES SEEDED BY DUST

  • A new arXiv study proposes that interplanetary dust particles ablating in exoplanet upper atmospheres deliver silicate aerosols that can seed cloud formation, mirroring the process that creates noctilucent clouds on Earth.

HOT JUPITER FORMATION CLUE

  • Researchers announced the discovery of K2-232c, an outer companion whose orbital eccentricity suggests hot and warm Jupiters form through divergent pathways — supporting high-eccentricity migration for hot Jupiters specifically.

ANAK KRAKATAU ERUPTION OBSERVED FROM ORBIT

  • NASA satellites captured imagery of a powerful Anak Krakatau eruption in Indonesia that lofted ash into the atmosphere, disrupting thousands of flights and degrading regional air quality.

🛰️ MISSIONS

CURIOSITY HITS 5,000 SOLS ON MARS

  • NASA's Curiosity rover completed its 5,000th Martian day of operations around August 28, 2026, and also surpassed the 1-kilometer elevation mark on Mount Sharp during that same planning window. [2]

ARTEMIS II CREW VISITS MARSHALL, TWO ASTRONAUTS TRANSITION TO EMERITUS

  • The Artemis II crew — NASA's Christina Koch, Victor Glover, Reid Wiseman, and CSA's Jeremy Hansen — visited NASA Marshall Space Flight Center in Huntsville on September 1 to meet the workforce.
  • Victor Glover and Reid Wiseman are formally transitioning to emeritus status at Johnson Space Center in September following their landmark Artemis II lunar flyby mission. [1]

BEPICOLOMBO COMPLETES EIGHT YEARS EN ROUTE TO MERCURY

  • ESA and JAXA's BepiColombo has now traveled 9.9 billion km and completed nine planetary flybys since launch, with new onboard camera footage documenting the full journey to align with Mercury's orbit.

MTG-I2 REACHES FINAL ORBIT

  • ESA's Meteosat Third Generation Imager 2 satellite has arrived at its designated geostationary orbit at 36,000 km altitude and is entering its commissioning phase to begin weather forecasting service over Europe and North Africa.

SENTINEL-6 DUO TRACKING HURRICANES DURING EL NINO

  • NASA and European partners' Sentinel-6B now flies 30 seconds behind its predecessor Sentinel-6 Michael Freilich, and both satellites are actively studying hurricanes and sea-level changes during the current El Nino period.

EXPEDITION 75 ABOARD ISS

  • The Expedition 75 crew on the International Space Station devoted September 8 to astronaut health research and photographing the Moon and Earth, while also maintaining life support systems after a cargo spacecraft departure.

NASA LUNAR SURFACE TECHNOLOGY SOLICITATION

  • NASA opened a solicitation on September 8 targeting technology gaps for lunar south pole operations, including power generation, oxygen extraction, and in-situ material production needed for a future Moon Base.

JAXA QZS-7 LAUNCH RESCHEDULED

  • JAXA rescheduled the launch of Michibiki No. 7, the next Quasi-Zenith Satellite System navigation satellite, aboard H3 Flight No. 9 following an earlier postponement; a new target date has not been confirmed in the latest available notice.

☀️ SPACE WEATHER

GEOMAGNETIC STORM WATCH ACTIVE NOW

  • NOAA issued a G2 Moderate geomagnetic storm watch on September 8 at 17:02 UTC, with G2 conditions predicted for September 9 and residual G1 Minor activity possible; the watch supersedes all prior watches. [3]
  • A G1 Minor geomagnetic storm was confirmed after the K-index reached 5 on September 8 at 17:44 UTC, with an extended warning for K-index 5 valid through September 8 at 23:59 UTC.
  • A K-index 4 extended warning was also in effect through September 9 at 09:00 UTC, indicating sustained unsettled-to-active geomagnetic conditions across a multi-day window.

ELEVATED ENERGETIC ELECTRON FLUX PERSISTS

  • NOAA GOES-19 registered a continued alert for 2 MeV electron integral flux exceeding 1,000 pfu beginning September 8 at 15:50 UTC, with a maximum of 1,540 pfu recorded at 01:45 UTC on September 9.
  • A corrected re-issuance confirmed yesterday's maximum flux at 1,003 pfu, keeping the elevated radiation environment alert active for satellite operators.

EARLIER SOLAR RADIO BURST IN CONTEXT

  • A Type II solar radio emission on August 17 indicated an outward CME shock traveling at an estimated 825 km/s, providing the upstream driver context for the current elevated geomagnetic activity period.

📄 RESEARCH

JWST REVEALS COLD CLASSICAL KUIPER BELT IN NEW DETAIL

  • Cold classical TNOs, the most pristine planetesimals in the solar system, now have a well-constrained size-mass distribution from H magnitudes 5 to 13 thanks to recent JWST observations, helping test how planetesimals survived without collisional grinding.

INTERPLANETARY DUST COULD EXPLAIN EXOPLANET SILICATE CLOUDS

  • Researchers argue that exoplanets, like Earth, receive steady inflows of interplanetary dust that ablate at altitude and seed silicate cloud layers, offering a new physical mechanism for the mineral clouds commonly inferred from exoplanet spectra.

EUCLID Q1 DATA MAPS GALAXY MORPHOLOGY IN CLUSTERS

  • The first Euclid Quick Data Release explores detailed visual morphology of galaxies inside clusters at intermediate redshifts, extending and sharpening the morphology-density and morphology-cluster-radius relations established by earlier surveys.

DARK MATTER HALO SHAPE AFFECTS MILKY WAY MICROLENSING ESTIMATES

  • A new study shows that assuming a triaxial rather than spherical Milky Way dark matter halo substantially changes the calculated microlensing optical depth toward the Large Magellanic Cloud, altering upper limits on compact dark matter objects such as primordial black holes.

ULTRA-FAST OUTFLOWS DETECTED EPISODICALLY IN LOW-LUMINOSITY QUASAR MRK 205

  • XMM-Newton data reveal episodic ultra-fast outflows in quasar Mrk 205, with wind velocities up to 0.3 times the speed of light and mass outflow rates of 0.01 to 1 solar masses per year, confirming AGN feedback can operate even in lower-luminosity systems.

LITTLE RED DOTS AND PRIMORDIAL BLACK HOLE CLUSTERS

  • A theoretical paper proposes that the supermassive black holes powering JWST's mysterious "little red dot" galaxies grew through runaway mergers of primordial black hole clusters formed by mode coupling in the early universe, potentially easing the high-redshift galaxy mass tension.

Sources: NASA, ESA, JAXA, NOAA SWPC, arXiv astro-ph, Launch Library 2

SPACE PULSE is compiled from official agency releases and preprint servers only. All times UTC.

📎 Sources

  1. NASA Names Two Artemis II Astronauts to Emeritus Program — NASA News Releases
  2. Curiosity Blog, Sols 4995-5001: 5,000 (Martian) Days on Mars — NASA News Releases
  3. Space Weather Message Code: WATA30 — NOAA SWPC Alerts
  4. Long March 8A | Unknown Payload — Launch Library 2
  5. Starship | Flight 14 — Launch Library 2
  6. Gravity-1 | Unknown Payload — Launch Library 2
  7. Falcon 9 Block 5 | USSF-259 — Launch Library 2
  8. Long March 12 | Unknown Payload — Launch Library 2
  9. Falcon 9 Block 5 | Starlink Group 15-27 — Launch Library 2
  10. NASA’s Hubble, Webb Find Far-out Solar System Objects ‘Remembe… — NASA News Releases

Curated from official sources — NASA/ESA/JAXA/ESO/NOAA/arXiv/Launch Library. Informational only.
Serial 20260909-22-v76 · 2026-09-09 22:01 UTC · pulse.uzylab.com

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