- Starlink Leakage Threatens Radio Astronomy — r/space
Square Kilometre Array Low must detect cosmic signals that Starlink hardware leakage reaches up to 10,000 times stronger. The interference hits frequencies critical for radio astronomy observations. Ground-based arrays face growing challenges separating satellite emissions from faint astronomical sources. Protected bands reserved for cosmic studies now carry measurable artificial noise from the constellation. Observers must develop new filtering techniques to isolate genuine signals amid the rising background.
- Venus Moon Would Have Been Unstable — Universe Today
Venus likely never formed a moon according to the new analysis. Any hypothetical satellite would have been torn apart quickly by the planet’s gravity. The study concludes the tidal forces near Venus make long-term moon retention impossible. Prominent planetary astrophysicist modeling shows orbital decay would occur on short timescales. Close-in moons around Venus face gravitational stresses far stronger than those experienced by Earth’s satellite.
- 5400 mph Winds Found on Distant Exoplanet — science.nasa.gov
Researchers measured atmospheric winds moving at 5400 mph on a planet outside the solar system. The observations used spectroscopy to track cloud movements across the exoplanet’s surface. These speeds exceed any recorded wind in our solar system by a wide margin. High-resolution spectra captured the Doppler shift of cloud features as they circled the planet. The extreme circulation pattern suggests powerful global dynamics driven by intense stellar heating.
- Early Universe Starbursts Had Size Limits — Phys.org Space
Population III stars formed from pristine hydrogen and helium with no heavier elements. A new paper examines how massive these first starbursts could grow before feedback halted further collapse. JWST observations may soon test the predicted upper mass boundary. The analysis explores the role of radiation pressure and supernova feedback in limiting total stellar mass. Pristine gas clouds in the early universe faced rapid enrichment that ended the era of metal-free star formation.
- Galaxies Carve Reionization Bubble — Universe Today
JWST detected an overdensity of galaxies clearing a region where light could travel freely. Neutral hydrogen previously blocked photons across the early universe. The bubble shows how clustered star-forming regions drove cosmic reionization. Light from these galaxies ionized surrounding gas and created transparent pockets amid the neutral medium. The findings illustrate the patchy nature of the transition from the cosmic dark ages to the transparent universe we see today.
- Zodiacal Light Visible This Week — Space.com
September’s new moon creates dark skies ideal for spotting the faint cone of interplanetary dust. The glow rises above the eastern horizon before dawn. Observers can photograph the feature during this limited window. The interplanetary dust scatters sunlight into a diffuse pyramid shape visible under moonless conditions. This week offers one of the best annual opportunities for northern hemisphere viewers to capture the phenomenon.
- Supernova Visible in NGC 7331 — Space.com
Type Ia supernova SN 2026aaiv was discovered in the galaxy NGC 7331 at 45 million light-years. Amateur astronomers can still observe and image the event before it fades. The explosion offers a rare chance to study a standard candle in real time. NGC 7331 presents a face-on spiral similar in size and structure to the Milky Way. The supernova’s peak brightness provides a calibration point for distance measurements across cosmic scales.
- New Ice Form Found for Ice Giants — Phys.org Space
Laboratory experiments recreated the extreme pressures and temperatures inside Neptune and Uranus. Scientists identified a previously unknown ice phase stable under those conditions. The finding helps model the internal structure of both planets. High-pressure diamond anvil cells and laser heating simulated the deep interiors where water exists in exotic solid forms. The new phase alters predictions for heat flow and magnetic field generation within ice giant mantles.
- Webb Finds Water Vapor Near Rocky Planets — science.nasa.gov
JWST detected water vapor in the inner zone of a protoplanetary disk where rocky planets form. The vapor sits inside the snow line where temperatures normally keep water as gas. This location matches the region where terrestrial worlds assemble. Ultraviolet radiation from the central star liberates water molecules from incoming icy pebbles. The reservoir may supply the building blocks for atmospheres on forming rocky planets.
- Chandra Captures Merging Galaxies — NASA Image
II Zw 096 shows two galaxies colliding at a high rate of star formation. Chandra X-ray data reveal powerful black hole activity and hot gas in magenta. Optical and infrared views complete the multi-wavelength portrait of the system. The merger drives intense bursts of star formation while feeding the central black holes. Combined datasets highlight how galaxy interactions reshape both stellar populations and nuclear activity.
- Sun May Have Swallowed Super-Earth — Space.com
Early solar system models suggest the Sun could have consumed a super-Earth sized body. Remaining chemical signatures in the Sun’s composition may preserve evidence of that event. The hypothesis links planetary migration to the star’s final inventory of elements. Refractory elements depleted in the solar photosphere align with predictions for a swallowed rocky planet. Migration simulations show how an inner super-Earth could have been driven into the star during the disk phase.
- Lunar AI Model Maps Ice and Craters — Phys.org Space
NASA and IBM released an open-source model trained on 17 years of Lunar Reconnaissance Orbiter data. The NASA-IBM Lunar Foundation Model identifies ice deposits, craters, and volcanic features. Code and weights are available on Hugging Face and GitHub for public use. The model processes multispectral imagery to map surface composition at high resolution. Researchers can now apply the same architecture to other planetary datasets for rapid feature detection.
- Artifact InSPECtor Invites Public Help — NASA Breaking
Volunteers can inspect images from Euclid and the Nancy Grace Roman Space Telescope to flag artifacts. The citizen science project improves data quality for distant galaxy and exoplanet studies. Participants learn how raw telescope frames are cleaned before scientific analysis. The platform presents calibrated exposures and asks users to mark cosmic rays, satellite trails, and optical ghosts. Refined catalogs will support precise measurements of galaxy shapes and weak lensing signals.
- Crew-12 Schedules Media Call — NASA (.gov)
The four Crew-12 astronauts will hold a news conference from the space station on September 16. They will recap mission highlights and answer questions before their return to Earth. NASA will stream the event live. The crew includes NASA astronauts Jessica Meir and Jack Hathaway along with international partners. The session offers the final public update before the capsule departs the orbiting laboratory.
- Gemini 11 Marks 60 Years — r/space
The 1966 mission practiced rendezvous and docking techniques needed for Apollo lunar flights. Crew performed the first direct-ascent rendezvous and a tethered gravity-gradient experiment. The flight remains a key milestone in human spaceflight development. Gemini 11 demonstrated precision orbital maneuvers that later enabled lunar orbit insertion and module docking. The tethered satellite test provided early data on gravity-gradient stabilization in orbit.
Starlink’s radio leakage now reaches levels 10,000 times stronger than the faint signals the Square Kilometre Array Low must detect. The interference lands squarely in protected frequency bands reserved for cosmic observations. As more satellites launch, astronomers face an escalating task of filtering out artificial noise from genuine astronomical data. Hardware modifications on future satellites or adjustments to orbital planes could reduce the impact. One open question is whether hardware redesigns or orbital adjustments can reduce the leakage before the array begins full operations.
Picture a protoplanetary disk so compact that its inner edge sits closer to its star than Mercury does to our Sun, yet still holds enough water vapor to fill Earth’s oceans many times over. JWST recently mapped this vapor right where rocky planets assemble, inside the boundary where temperatures should turn all water into gas. The vapor survives because ultraviolet light from the young star breaks apart icy grains drifting inward, releasing molecules that stay suspended in the warm gas. Temperatures here reach several hundred degrees, hot enough to destroy most complex molecules yet apparently gentle enough to leave water intact. The surprising detail is that the detected column density matches levels seen in much colder outer disks, suggesting efficient inward transport or in-situ production. Nobody yet knows whether this reservoir feeds the atmospheres of forming terrestrial planets or gets lost to stellar winds before those worlds finish growing.
Space keeps revealing new layers of complexity every week.
