🚀 Space Pulse · 2026-10-03 22:00 UTC
SPACE PULSE
Saturday, October 4, 2026 — Today's Edition
⚡ TL;DR
NASA's SpaceX Crew-12 is wrapping up its ISS science mission and heading home in early October, capping a busy stretch for human spaceflight. [1] The pace is steady across launches, solar science, and deep-universe research, with no major emergencies on the board today.
🚀 LAUNCHES
UPCOMING LAUNCHES
- Roscosmos plans to launch Progress MS-36 (97P) cargo resupply to the ISS aboard Soyuz 2.1b, currently targeted for 2026-11-24 at 05:03 UTC, pending confirmation. [2]
- Arianespace's Ariane 62 rocket is slated to carry Metop-SG B1, the second of EUMETSAT's next-generation polar weather satellites, with a target no earlier than 2026-11-30. [3]
- ISRO's LVM-3 will make the first uncrewed orbital test flight of the Gaganyaan human spaceflight capsule, also currently listed no earlier than 2026-11-30. [4]
🔭 DISCOVERIES
MILKY WAY'S FASTEST STAR CLOCKS 25,000 KM/S NEAR GALACTIC BLACK HOLE
- ESO astronomers used the Very Large Telescope Interferometer to detect star S301 orbiting Sagittarius A* at up to 25,000 km/s, making it the fastest known star in our galaxy. [5]
- The star's extreme proximity to the black hole allows its orbit to probe the spin of Sgr A* itself, a rare direct test of general relativistic frame-dragging. [5]
TODAY'S APOD: CURIOSITY ROVER SELFIE AT VERA RUBIN RIDGE
- NASA's Astronomy Picture of the Day for October 3, 2026 features a Curiosity rover selfie taken at Vera Rubin Ridge on Mars. [6]
🛰️ MISSIONS
CREW-12 PREPARING TO DEPART ISS
- NASA astronauts Jessica Meir and Jack Hathaway, ESA astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev are preparing to undock from the ISS and return to Earth in early October after a full science rotation. [1]
DAVINCI PROBE SURVIVES THERMAL GAUNTLET
- NASA's DAVINCI engineering development unit, a roughly yoga-ball-sized sphere, was placed in a ceramic-lined thermal chamber and subjected to conditions simulating Venus's crushing, scorching atmosphere, passing a major heat evaluation milestone. [7]
NASA OPENS FLIGHT DIRECTOR APPLICATIONS
- NASA is now accepting applications for its next class of flight directors at Johnson Space Center, a role central to the agency's sustained human exploration goals. [8]
NASA INSPYRE CAMPAIGN STUDIES WILDFIRE-SPAWNED PYROCUMULONIMBUS CLOUDS
- NASA's INSPYRE (INjected Smoke and PYRocumulonimbus Experiment) campaign documented a pyrocumulonimbus cloud launched by the Wildhorse grass fire in eastern Idaho, gathering data on how wildfires inject smoke into the upper atmosphere. [9]
☀️ SPACE WEATHER
ELEVATED RADIATION ENVIRONMENT PERSISTED IN EARLY SEPTEMBER
- NOAA SWPC issued a continued alert on September 4 for 2 MeV electron integral flux exceeding 1,000 particle flux units (pfu), a condition that began August 31 and peaked at 830 pfu on September 4 at 12:00 UTC — relevant for satellite operators monitoring deep-dielectric charging. [10]
G1 MINOR GEOMAGNETIC STORM WATCH WAS ISSUED MID-SEPTEMBER
- NOAA SWPC issued Watch serial 1125 on September 15 predicting G1 (Minor) geomagnetic storm conditions for September 16 and 17, with conditions expected to drop below G1 threshold by September 18.
- G1 storms can cause minor power grid fluctuations, slight impacts on satellite drag, and enhanced auroras at high latitudes.
📄 RESEARCH
FASTEST STAR PHYSICS: FRAME-DRAGGING AT THE GALACTIC CENTER
- ESO's detection of S301 at 25,000 km/s provides an observational handle on Sgr A*'s spin parameter, a test previously considered out of reach for stellar-orbit studies. [5]
XRISM SATELLITE REPURPOSED TO HUNT DARK MATTER DECAY LINES
- Researchers propose using XRISM/Resolve serendipitous low-count-rate observations to search the 3.48-3.56 keV band for a radiative decay line from keV-mass dark matter in the Milky Way halo, finding bounds stronger than previous instruments despite lower total exposure.
DESI DR1 BISPECTRUM TIGHTENS COSMOLOGICAL PARAMETERS
- A joint full-shape analysis of DESI Data Release 1 combining the galaxy power spectrum and bispectrum across three luminous red galaxy bins and quasars breaks parameter degeneracies that power-spectrum data alone cannot resolve, sharpening constraints on large-scale structure growth.
QUASAR NEBULAE REVEAL CLUMPY COLD GAS AROUND GALAXIES AT Z~3.5
- Using MUSE on ESO's VLT, two independent teams modeled Lyman-alpha, He II, and H-alpha emission from quasar nebulae at redshifts above 2-3.5, finding the cold circumgalactic medium is dense and clumpy at small scales, a key factor in how galaxies regulate star formation.
NEW SOLAR FLARE MODEL BRIDGES MHD TO KINETIC SCALES
- A new multi-scale framework for modeling solar flares integrates magnetohydrodynamic large-scale dynamics with kinetic-scale particle acceleration processes, addressing the computational gap between specialized flare codes operating at different spatiotemporal regimes.
SOLARPROP 2.0 OPENS COSMIC RAY MODULATION MODELING TO ALL
- The updated open-source SOLARPROP 2.0 framework solves charge-sign dependent solar modulation of cosmic rays in the heliosphere via stochastic differential equations, making state-of-the-art space weather and heliospheric physics modeling broadly accessible.
That is your Space Pulse for October 3-4, 2026. Stay curious, stay informed.
📎 Sources
- Heading Home: NASA’s SpaceX Crew-12 Concludes Station Science … — NASA News Releases
- Soyuz 2.1b | Progress MS-36 (97P) — Launch Library 2
- Ariane 62 | Metop-SG B1 — Launch Library 2
- LVM-3 | Gaganyaan-1 — Launch Library 2
- Milky Way's fastest star orbits our supermassive black hole so… — ESO
- APOD: 2026 October 3 – Selfie at Vera Rubin Ridge — NASA News Releases
- NASA’s DAVINCI Probe Can Stand the Heat — NASA News Releases
- NASA Opens Applications for Next Class of Flight Directors — NASA News Releases
- NASA Campaign Explores Clouds Spawned by Wildfires — NASA News Releases
- Space Weather Message Code: ALTEF3 — NOAA SWPC Alerts
Curated from official sources — NASA/ESA/JAXA/ESO/NOAA/arXiv/Launch Library. Informational only.
Serial 20261003-22-v99 · 2026-10-03 22:00 UTC · pulse.uzylab.com