🚀 Space Pulse · 2026-07-27 22:01 UTC

SPACE PULSE

Monday, July 28, 2026 | Edition 207

⚡ TL;DR

NASA's Swift Observatory has caught a rare "wandering" supermassive black hole devouring a star far outside any galaxy's core, the first tidal disruption event ever seen at such an extreme offset. A busy week ahead: ISS spacewalk preps, a Korean military rocket demo, and two Starlink runs bookend the launch calendar.

🚀 LAUNCHES

UPCOMING LAUNCHES

• South Korea's Agency for Defense Development targets July 31 for the Mir vehicle's Demo Flight, its first full orbital attempt after two sub-orbital stage tests in 2022. ^[1]
• SpaceX has two Starlink runs lined up: Starlink Group 17-38 (24 satellites) on August 7 and Starlink Group 10-19 (29 satellites) on August 10, both Falcon 9 Block 5, status Go for Launch. ^{[2] [3]}
• China's Long March 12 has an unspecified payload targeting August 17, status To Be Confirmed. ^[4]
• CASC's Long March 5 is slated to loft Chang'e 7 around August 24, carrying an orbiter, lander, mini-hopping probe, and rover to the lunar south pole region. ^[5]

🔭 DISCOVERIES

• NASA's Neil Gehrels Swift Observatory detected an "orphan" black hole lighting up as it shredded a star on the far outskirts of a distant galaxy, the first tidal disruption event recorded so far from a galactic nucleus. ^{[6] [7]}
• NASA's Hubble Space Telescope finds that star formation in the Andromeda galaxy has been in continuous decline for 500 million years, suggesting the galaxy is slowly winding down its stellar birthrate. ^{[8] [9]}
• ESA's Copernicus satellites imaged raging wildfires burning near Madrid, Spain, providing near-real-time Earth observation data to emergency responders. ^[10]
• JWST NIRCam has imaged two M-dwarf debris disks in the TW Hydra association: TWA 10 hosts what appears to be the largest known M-dwarf debris disk, a new discovery, while TWA 25 was re-imaged in the F200W and F444W filters.
• A radio transient survey of the LADUMA field using MeerKAT UHF-band data uncovered MKT J032848.4-271904.6, a new radio-flaring M dwarf identified via roughly one year of commensal observations.

🛰️ MISSIONS

• NASA astronaut Chris Williams splashed down and was recovered on July 26, 2026, returning from eight months aboard the ISS as part of Expedition 74, alongside Roscosmos cosmonauts Sergey Kud-Sverchkov and Sergei Mikaev; this was Williams' first spaceflight.
• NASA has announced coverage of three upcoming US spacewalks in August at the ISS to upgrade solar arrays, replace a communications antenna, and connect power and data cables; a preview news conference is planned.
• ESA's Industry Space Days are scheduled for September 16-17 at ESA-ESTEC in the Netherlands, bringing together European space startups and industry partners.

☀️ SPACE WEATHER

• NOAA GOES-19 issued a continued Electron 2 MeV Integral Flux alert on July 27 at 14:53 UTC (Serial 3722), with yesterday's maximum reaching 1,063 pfu; the elevated flux event originally began July 26 at 15:34 UTC.
• NOAA detected a Type II Radio Emission on July 27 beginning at 02:44 UTC with an estimated CME shock velocity of 622 km/s, indicating a solar eruption capable of producing energetic particle effects.
• A faster Type II Radio Emission was recorded July 26 at 15:29 UTC with an estimated velocity of 1,057 km/s, roughly 70 percent faster than the follow-on event, suggesting an energetic CME lift-off.
• For historical context in this solar rotation: an M8.5 flare from region S07W25 peaked July 1 at 23:09 UTC, rated R2 Moderate, and a G2 Moderate geomagnetic storm was predicted for July 3-4 as a consequence.

📄 RESEARCH

WANDERING BLACK HOLE LINK TO HYPERVELOCITY STARS

• A new arXiv paper asks whether star S301 in the Milky Way's central region is the captured companion of hypervelocity star S5-HVS1, ejected by the Hills mechanism when its binary was disrupted by Sgr A*; the measured mass and velocity of S5-HVS1 constrain the orbital properties of any such bound remnant.

BLAZAR PKS 1424-41 JET IS WOBBLING

• Sixteen years of Fermi-LAT gamma-ray data on blazar PKS 1424-41 reveal three superimposed quasi-periodic oscillations, interpreted as evidence that the relativistic jet is both precessing and nutating, the clearest observational signature of jet wobble seen in a blazar to date.

PROTOPLANET NURSERY WISPIT 2 HAS A BINARY HOST

• New spectroscopy of the WISPIT 2 system, only the second known site of directly detectable ongoing planet formation, indicates its host star is actually a spectroscopic binary, adding a gravitational complication to understanding how its two embedded protoplanets formed.

PLANET FORMATION DUST IN HD 163296

• High-resolution multi-wavelength ALMA observations of the protoplanetary disk around HD 163296 are being used to characterize dust grain sizes, surface densities, and temperatures, key inputs for modeling where and how planets are currently assembling in this well-studied system.

AGN WINDS VERSUS JETS

• A study testing scale-invariant black hole accretion across FRII radio quasars and other active galactic nuclei finds evidence for the same wind-jet anti-correlation seen in X-ray binaries, suggesting a universal switching mechanism between disk winds and relativistic jets operates across twelve orders of magnitude in black hole mass.

TIME-DOMAIN AND MULTI-MESSENGER ASTROPHYSICS ROADMAP

• The 4th TDAMM Workshop White Paper outlines how rapidly growing rates of transient discoveries across gravitational-wave, neutrino, cosmic-ray, and electromagnetic facilities will require coordinated infrastructure and follow-up strategies to maximize scientific return in the coming decade.

That is your Space Pulse for July 27-28, 2026. Clear skies.

📎 Sources

1. Mir | Demo Flight — Launch Library 2
2. Falcon 9 Block 5 | Starlink Group 10-19 — Launch Library 2
3. Falcon 9 Block 5 | Starlink Group 17-38 — Launch Library 2
4. Long March 12 | Unknown Payload — Launch Library 2
5. Long March 5 | Chang'e 7 — Launch Library 2
6. NASA’s Swift Sees ‘Wandering’ Mega Black Hole Shredding Star — NASA News Releases
7. NASA’s Swift Sees ‘Wandering’ Mega Black Hole Shredding Star — NASA Science
8. NASA’s Hubble Shows Star Formation in Andromeda Galaxy Winding… — NASA News Releases
9. NASA’s Hubble Shows Star Formation in Andromeda Galaxy Winding… — NASA Science
10. Raging wildfires near Madrid, Spain — ESA Top News

Curated from official sources — NASA/ESA/JAXA/ESO/NOAA/arXiv/Launch Library. Informational only.
Serial 20260727-22-v40 · 2026-07-27 22:01 UTC · pulse.uzylab.com