🚀 Space Pulse · 2026-07-29 22:01 UTC
SPACE PULSE
Wednesday, July 29, 2026 — Evening Edition
⚡ TL;DR
NASA's Webb telescope is reshaping our understanding of "little red dots," the universe's most puzzling distant objects, revealing a complex family tree of early galaxies and AGN.
A busy solar week, a Mars flyby milestone, Curiosity geology, and a packed launch slate keep the pace high across every front.
🚀 LAUNCHES
IMMINENT: SpaceX Falcon 9 | NROL-95, a classified National Reconnaissance Office payload, is targeting liftoff on July 30 at 07:09 UTC. [1]
UPCOMING: SpaceX Falcon 9 | AST SpaceMobile BlueBird Block 2 satellites 6 through 8 are set for August 5 at 07:42 UTC; Block 2 birds deliver up to 10x the bandwidth of Block 1 for continuous US cellular broadband coverage. [2]
UPCOMING: China Rocket Co. Smart Dragon 3 carrying an undisclosed payload has a tentative window around August 4; details remain to be confirmed. [3]
UPCOMING: SpaceX Falcon 9 | Starlink Group 17-49, a 24-satellite batch for SpaceX's broadband mega-constellation, is scheduled for August 11 at 02:00 UTC. [4]
🔭 DISCOVERIES
WEBB / LITTLE RED DOTS: NASA's James Webb Space Telescope has now explored the "family tree" of little red dots (LRDs), the extremely compact, distant red sources first spotted in 2022; new results published today probe whether they are dust-shrouded AGN, dense starbursts, or a mix of both. [5] [6]
MARS AURORAS: NASA's MAVEN mission has found new detail on how solar-storm charged particles strip away Mars's atmosphere and drive Martian auroras, with an updated illustration released July 29, 2026. [7] [8]
CURIOSITY / HONEYCOMB TEXTURES: Curiosity rover, climbing the valley nicknamed Valle Grande on Mount Sharp, has discovered an unusually extensive field of polygonal fractures 4 to 8 centimeters across on sols 4930 and 4931 of the mission — the densest polygon field seen in the mission's history. [9] [10]
CURIOSITY / BUTTE: Separately, Curiosity imaged a sand-capped butte nicknamed Miraflores, roughly 6 meters tall, preserved as surrounding rock eroded away, on sol 4923.
AUGUST TOTAL SOLAR ECLIPSE: NASA has announced live coverage for a total solar eclipse on August 12, 2026, crossing Greenland, Iceland, northern Russia, the Atlantic, Spain, and a sliver of Portugal.
SATELLITE LIGHT POLLUTION: An ESO study warns that proposals to place over 1.7 million satellites in orbit would have devastating consequences for ground-based astronomy; the study sets a threshold of no more than 100,000 faint satellites — below naked-eye visibility — as the acceptable ceiling.
SUNGRAZING COMET C/2026 A1 (MAPS): Orbital analysis including integration of 1,000 virtual clones traces this Kreutz sungrazer's history back to the 4th century AD, with an apparent association with daylight comets recorded in AD 363 by the historian Ammianus.
🛰️ MISSIONS
PSYCHE MARS FLYBY: NASA's Psyche spacecraft executed a gravity-assist flyby of Mars, captured on video and featured as NASA's Astronomy Picture of the Day for July 29, 2026 — a key trajectory milestone on its way to the metal-rich asteroid 16 Psyche.
ISS EXPEDITION 75: Commander Jessica Meir and the seven-member Expedition 75 crew spent July 28 on spacesuit checks, eye exams, and exercise research aboard the International Space Station, preparing for upcoming spacewalks.
SWIFT SERVICING: Katalyst Space Technologies' LINK servicing spacecraft — designed to boost NASA's Swift observatory — experienced attitude control issues over the weekend of July 26 to 27; commissioning is ongoing.
JAXA H3 / MICHIBIKI 7: JAXA has rescheduled the H3 Flight 9 launch of the QZS-7 quasi-zenith navigation satellite; a revised date is pending after an earlier postponement announced June 15.
HABITABLE WORLDS OBSERVATORY PREP: NASA released ROSES-2025 Amendment D.8, a new funding opportunity for Habitable Worlds Observatory Precursor Science Investigations, signaling early groundwork for the next flagship telescope concept.
☀️ SPACE WEATHER
OVERVIEW: The sun has been markedly active across the July 3 to 6 window, with multiple M-class and one X-class flare, sustained geomagnetic storming, and elevated particle flux. Conditions have since quieted but remain worth watching.
X1.3 FLARE on July 4 at 20:41 UTC from region N15W75 drove an R3 Strong radio blackout; a 10 cm radio burst peaked at 890 solar flux units during the same event.
M6.7 FLARE on July 3 at 18:11 UTC from N17W66, and an M6.3 on July 3 at 18:59 UTC from S06W46, both registered R2 Moderate radio blackouts; a Type II radio emission accompanying the M6.7 indicated a CME shock velocity of 1,831 km/s.
M5.5 FLARE on July 5 at 17:57 UTC from N15W87 produced another R2 Moderate event; a separate Type II burst on July 5 indicated a shock at 959 km/s.
G3 STRONG GEOMAGNETIC STORM (K-index 7) was recorded on July 4 starting at 05:09 UTC, following a G2 watch that had been in effect since July 3; multiple G1 and G2 alerts filled the 36-hour span from July 3 through July 5.
ENERGETIC PARTICLES: GOES-19 recorded 2 MeV electron integral flux exceeding 1,000 particle flux units on July 6 at 11:49 UTC, up from a prior-day max of 625 pfu, reflecting a radiation belt enhancement following the storm sequence.
CURRENT STATUS: Activity subsided to K-index 4 levels by July 13 to 14 and again on July 21; no active major storm watches are in place as of this edition.
📄 RESEARCH
HUBBLE CONSTANT TENSION UPDATE: A new paper delivers an updated H0 measurement at 1.1 percent precision using corrected Pantheon+ and DES-DOVEKIE Type Ia supernovae; this is the first use of DES-DOVEKIE in a distance-ladder H0 determination and applies fresh corrections that have recently put multiple supernova datasets under scrutiny.
SOLAR WIND ENERGY TRANSFER WITH PARKER SOLAR PROBE: Analysis of Parker Solar Probe and Solar Orbiter data shows that turbulent fluctuation energy is transferred into the bulk flow of fast solar wind streams between 15 and 120 solar radii from the Sun, a key clue to how the solar wind is accelerated.
CHANGING-LOOK AGN CATALOG: Researchers have compiled the largest homogenized catalog of known changing-look active galactic nuclei — galaxies whose brightness and spectral character shift dramatically over months to years — positioning the community for a major leap in discovery with the incoming Rubin Observatory.
ECCENTRIC SUPERMASSIVE BLACK HOLE BINARIES: The QuickGWecc pipeline offers a fast Bayesian search tool for detecting continuous gravitational waves from individual eccentric supermassive black hole binaries in pulsar timing array data, the next major milestone after the confirmed nanohertz gravitational wave background.
GALAXY DUST THROUGH COSMIC TIME: The COLIBRE cosmological simulation suite now tracks dust production, growth, destruction, and grain-size evolution self-consistently from redshift 15 down to today, presenting dust scaling relations across the full history of galaxy formation.
PARKER SOLAR PROBE / CORONAL DIMMING: A separate study investigates whether transient coronal dimming events — sudden drops in EUV and X-ray emission after solar eruptions — can mimic the plasma properties of true coronal holes, with implications for how we interpret post-eruption solar imagery.
📎 Sources
- Falcon 9 Block 5 | NROL-95 — Launch Library 2
- Falcon 9 Block 5 | BlueBird Block 2 #6-8 — Launch Library 2
- Smart Dragon 3 | Unknown Payload — Launch Library 2
- Falcon 9 Block 5 | Starlink Group 17-49 — Launch Library 2
- NASA Webb Explores Family Tree of Newly Discovered Distant Obj… — NASA News Releases
- NASA Webb Explores Family Tree of Newly Discovered Distant Obj… — NASA Science
- Understanding How Martian Auroras Are Made — NASA News Releases
- Understanding How Martian Auroras Are Made — NASA Science
- NASA’s Curiosity Mars Rover Discovers Field of Honeycomb Textures — NASA News Releases
- NASA’s Curiosity Mars Rover Discovers Field of Honeycomb Textures — NASA Science
Curated from official sources — NASA/ESA/JAXA/ESO/NOAA/arXiv/Launch Library. Informational only.
Serial 20260729-22-v42 · 2026-07-29 22:01 UTC · pulse.uzylab.com