- Orbital Mirrors Would Outshine Moonlight Widely — Universe Today
A new study models Reflect Orbital’s planned constellation of giant mirrors and finds severe light pollution. One 54-metre satellite would appear four magnitudes brighter than the full Moon inside its beam. Scattered glow would exceed moonlight from 14 kilometres away and remain visible beyond 30 kilometres. The FCC has already approved a pilot satellite despite astronomer objections, with up to 50,000 mirrors targeted for the mid-2030s. The work supplies quantitative numbers for ongoing debates over who controls the night sky. Follow-up regulatory filings and ground-based brightness tests are expected next.
- Hubble Maps Declining Star Formation in Andromeda — Universe Today
University of Washington astronomers used detailed Hubble surveys to track how star formation is slowing across the Andromeda galaxy. The data reveal a clear drop in the rate at which new stars are being born compared with earlier epochs. Precise mapping of stellar populations across large areas allowed the team to measure the change directly. The findings add to evidence that large spiral galaxies gradually quench their star-forming activity over time. Next steps include comparing the Andromeda results with similar surveys of the Milky Way.
- NASA Chief Voices Strong Artemis 3 — Spaceflight Now
The NASA Administrator stated he is “extremely confident” in a 2027 crewed Artemis 3 landing. The comment came during an announcement for a privately run air and space show at Kennedy Space Center in early November. Artemis 3 remains the first crewed lunar landing under the current architecture. Yesterday’s coverage noted ongoing lander and Gateway readiness questions; today’s statement directly addresses the crewed landing schedule. Engineers continue hardware testing ahead of the target window.
- Composite Telescopes Solve Tarantula Nebula Puzzle — Universe Today
A new image combining Chandra, Hubble, Webb and retired Spitzer data explains unexpectedly low X-ray output in the Tarantula Nebula 160,000 light-years away. Young massive stars should heat surrounding gas enough to produce strong X-rays, yet observations show far less emission than models predicted. The multi-wavelength view reveals how the gas is distributed and cooled. The result resolves a long-standing discrepancy between predicted and measured high-energy output. Further modelling of stellar feedback in the region is planned.
- Sardinia Telescope Upgraded for Fast Radio Burst Studies — Universe Today
Italy’s largest radio telescope on a southern Sardinia plateau has received upgrades to continue probing fast radio bursts. The instrument’s remote mountain location reduces terrestrial interference for sensitive observations. Recent improvements target better localisation and repetition-rate measurements of these millisecond flashes. The work contributes to efforts to identify the sources and physical mechanisms behind FRBs. Additional observing campaigns are scheduled through the coming year.
- High-Altitude Jet Captures Eclipse Corona Data — Phys.org Space
A NASA WB-57 aircraft flew above thick clouds off Iceland to observe the total solar eclipse. The plane carried Southwest Research Institute equipment that recorded the solar corona in nine wavelengths from visible to infrared. Flying at 50,000 feet allowed the team to follow the Moon’s shadow and collect uninterrupted measurements. The data set provides new views of coronal structure during the brief totality period. Analysis of the multi-wavelength results is underway.
- Second U.S. Sensor Joins Japanese Navigation Satellites — SpaceNews
The August 10 launch of QZS-7 completed a bilateral program placing U.S. surveillance sensors aboard Japanese navigation satellites. The second sensor adds redundancy and expands coverage for space situational awareness. Japan’s constellation now hosts two American payloads under the joint arrangement. The sensors support tracking of objects in geostationary and related orbits. Future coordination meetings will review performance and plan additional contributions.
- Wallops Prepares Infrastructure for Launch Surge — SpaceNews
Officials and companies at Wallops Island are advancing infrastructure upgrades ahead of a projected increase in orbital launches. The site expects higher flight rates in coming years from multiple providers. Current work focuses on launch pads, payload processing and workforce facilities. The improvements aim to reduce turnaround times and support sustained operations. Environmental reviews and construction timelines are being finalised.
- Kennedy Space Center Plans November Aerospace Expo — Space.com
NASA announced a two-day public event called MAX POWER for November 7–8 at and near Kennedy Space Center. The expo will feature next-generation aircraft, spacecraft and autonomous vehicles in honour of America’s 250th anniversary. Artemis astronauts and the Air Force Thunderbirds are among the participants. The family-friendly program includes static displays and flight demonstrations. Ticket and scheduling details will be released in the coming weeks.
- Magnetic Star Offers Test of Quantum Vacuum — Space.com
Astronomers are using an extremely magnetised star to probe whether empty space behaves as predicted under strong fields. The object’s intense magnetism may induce vacuum birefringence, altering the polarisation of light passing through it. Observations could confirm or challenge a 90-year-old theoretical expectation. “We’re not just studying astronomical objects anymore; we’re using them to test the laws of nature,” one researcher noted. Additional polarisation measurements are being collected.
- Student Teams Invited to Design Lunar Technologies — NASA Science
NASA opened the 2027 RASC-AL competition for U.S. collegiate teams to propose concepts for lunar operations and technologies. Selected teams receive access to agency expertise, data sets and mentorship. The challenge focuses on new paradigms that could shape future Moon activities. Proposals are due later this year, with finalists presenting in 2027. Past editions have influenced agency planning for surface systems.
- Study Links Spaceflight to Constipation Mechanisms — Phys.org Space
University of Copenhagen researchers working with NASA examined why constipation is common among astronauts. Blood tests revealed changes in gut function that occur without the influence of gravity. The findings point to specific physiological responses in the digestive system during weightlessness. The study provides the first direct measurements of these processes in space. Further experiments are planned on upcoming missions.
- Cygnus Bubble May Trace to Microquasar — Phys.org Space
A new study in The Astrophysical Journal Letters proposes that a microquasar, rather than the Cygnus X star-forming region, powers the Cygnus Bubble’s highest-energy gamma rays. The vast cloud stretches thousands of light-years and emits ultra-high-energy radiation. The microquasar model better matches the observed energy distribution. The paper was published July 21. Additional multi-wavelength observations are needed to distinguish between the two scenarios.
- JWST Finds Three Black Holes in Early Galaxy — Universe Today
JWST observations have identified a galaxy 1.3 billion years after the Big Bang that contains three supermassive black holes. Two lie near the galaxy centre and are expected to merge soon; the third is more distant and will merge later. The detection shows that black-hole mergers contributed significantly to the growth of today’s central black holes. The galaxy is one of the earliest known with multiple active nuclei. Follow-up spectroscopy will refine the mass and accretion estimates.
- Starwashing Tactic Mirrors Corporate Greenwashing — Phys.org Space
Space companies are applying familiar marketing strategies to downplay environmental impacts while promoting exploration narratives. The approach appears across launch sites, low-Earth orbit operations and beyond. A space economy projected to reach US$1.8 trillion by 2035 provides the commercial backdrop. The study documents how narratives emphasise expansion while omitting effects on Earth and orbital environments. Policy discussions on accountability are expected to continue.
The JWST detection of three supermassive black holes inside a single galaxy only 1.3 billion years after the Big Bang shows mergers were already shaping black-hole growth when the universe was young. Two of the black holes sit close enough to coalesce on short timescales while the third waits farther out, giving astronomers a rare snapshot of staggered merger events. The infrared sensitivity that revealed these nuclei also opens the door to measuring their masses and accretion rates directly. Follow-up spectra will test whether such triple systems were common enough to explain the rapid assembly of today’s giant black holes. How many more early galaxies hide similar multiples?
A single fast radio burst releases in milliseconds as much energy as the Sun produces in three days, yet the signal arrives from galaxies billions of light-years away. Picture a brief flash so luminous it could be detected across the observable universe, then imagine riding that pulse as it crosses intergalactic space: every intervening cloud of ionised gas adds a tiny frequency-dependent delay that radio astronomers measure to map the missing baryons between galaxies. The Sardinia telescope’s recent upgrades improve both timing precision and sky coverage, allowing it to localise bursts to within arcminutes instead of degrees. One surprising number stands out: some repeating sources fire every few minutes, while others appear only once in years of monitoring. The open question is why the same physical mechanism seems to produce such wildly different repetition rates.
New data on early black-hole mergers and orbital light pollution keep the week’s astronomy questions sharp.
