Astronomy - Part 4
148 reports
Chandra X-ray Observatory reveals hot gas from early quasar
NASA's Chandra X-ray Observatory has detected extremely hot gas surrounding a distant, radio-quiet quasar, offering new insight into the formation of galactic cluster atmospheres in the early universe
Dwarf Galaxy DF9 Found Without Dark Matter After Cosmic Collision
Astronomers using the Keck Cosmic Web Imager have identified a faint dwarf galaxy, DF9, that appears to lack dark matter, supporting the idea that galactic collisions can separate dark and visible matter
Milky Way Disk May Have Flipped, Altering Solar System's Orbit
Supercomputer simulations suggest the Milky Way's spiral disk may have rotated by 90 degrees in the distant past, potentially changing the solar system's path and explaining the galaxy's unusually slow stellar halo rotation
NASA Prepares Roman Space Telescope for 2026 Launch to L2 Orbit
NASA has fueled the Roman Space Telescope, a next-generation infrared observatory scheduled for launch in August 2026, aiming to collect hundreds of terabytes of cosmic data annually and expand studies of dark matter, dark energy, and exoplanets
Astrophotographer Captures ISS Passing Venus in Daylight Sky
A rare daylight image shows the International Space Station appearing close to Venus, recorded by AJ Smadi using a specialized telescope and camera setup in Washington state
Radio Telescopes Track Space Debris in Geostationary Orbit
Engineers have demonstrated that radio telescopes can detect and monitor space debris in geostationary orbit, using radar signals reflected from distant objects beyond the reach of conventional tracking methods
VLT Reveals Strongest Evidence Yet for Betelgeuse's Companion Star
Astronomers using the Very Large Telescope have obtained the clearest direct image to date of a faint companion star near Betelgeuse, advancing a century-long search for evidence that the red supergiant is part of a binary system
Africa's BALLS Radio Array to Ride Chang'e 8 to Lunar South Pole
A trio of spherical radio astronomy probes from Africa is set to launch aboard China's Chang'e 8 lander in 2029, aiming to deploy at the moon's south pole and test low-frequency radio observations beyond Earth's atmospheric limits
Swift Observatory Detects Black Hole Consuming Star Far From Galaxy Core
NASA's Swift Observatory has observed a rare tidal disruption event caused by a supermassive black hole devouring a star on the outskirts of a distant galaxy, challenging assumptions about where such events occur
NASA Astronaut Chris Williams Completes First ISS Mission After Eight Months
NASA astronaut Chris Williams has returned to Earth after spending eight months aboard the International Space Station, supporting scientific research and technology upgrades during Expedition 74
Chandra X-ray Data Reveal Black Hole Jet Disrupting Early Galaxy
Astronomers using the Chandra X-ray Observatory have detected a jet from a supermassive black hole disturbing gas in a distant galaxy known as the 'red potato,' offering new insight into how black holes can suppress star formation in the early universe
Deep Partial Lunar Eclipse to Create 'Almost Blood Moon' in August 2026
A rare deep partial lunar eclipse will occur on August 28, 2026, with up to 96% of the Moon passing through Earth's umbra. The event will be visible across the Americas, Europe, and Africa, offering a striking copper-red lunar display.
Viking 1's First Mars Surface Image Revisited on 50th Anniversary
NASA has released the original images captured by Viking 1 after its 1976 Mars landing, offering a detailed look at the Red Planet's surface and the mission's scientific legacy
Bright Moonlight Limits Meteor Shower Viewing as Delta Aquariids Peak
The Southern Delta Aquariids and Alpha Capricornids meteor showers reach their peak on July 30-31, but a nearly full moon will significantly reduce visibility of fainter meteors for observers across North America
Virtual Reality Brings the International Space Station to Earth
A new VR experience, Space Explorers: The ISS Experience, uses real footage and astronaut collaboration to simulate life aboard the International Space Station, offering the public an immersive look at orbital science and daily routines.
Seestar S30 Pro Smart Telescope Expands Urban Astrophotography Access
The Seestar S30 Pro integrates a high-resolution sensor, dual cameras, and automated image processing in a compact, smartphone-controlled telescope, enabling deep-sky imaging even from light-polluted locations
NASA's ESCAPADE Spacecraft Captures Earth and Moon in Dual Light
NASA's ESCAPADE mission has imaged Earth and the Moon in both visible and thermal infrared light, providing a rare calibration opportunity for its cameras as the spacecraft prepares for its journey to Mars
Expedition 74 Crew Begins Science Operations on International Space Station
Expedition 74 astronauts Anna Kikina, Pyotr Dubrov, and Anil Menon have joined the International Space Station, starting an eight-and-a-half-month mission focused on microgravity research and operational adaptation
What a Parsec Really Measures in Astronomy and Why It Matters
Astronomers use the parsec to measure vast cosmic distances, relying on precise observations of stellar parallax to determine how far away stars are from Earth. The unit is central to mapping the Milky Way and beyond
Hubble Reveals Asymmetric Spiral Galaxy Shaped by Cluster Forces
A new Hubble Space Telescope image captures NGC 4654, a spiral galaxy in Virgo, showing dramatic asymmetry caused by ram pressure stripping and past gravitational encounters
Hubble Reveals High-Speed Gas Bullets from Rare Helium Nova in Milky Way
Astronomers using Hubble and other observatories have observed V445 Puppis, the Milky Way's only known helium nova, ejecting dense gas clumps at speeds up to 32 million kilometers per hour
Sun's Silver Shortfall Explained by Advanced Atomic Modeling
Researchers using high-fidelity atomic simulations have found that the sun contains significantly more silver than previous spectral measurements suggested, resolving a longstanding discrepancy between solar and meteorite compositions
MAVEN Data Reveals Earth-Like Aurora Mechanism on Mars
NASA's MAVEN orbiter has provided evidence that localized auroras on Mars are powered by a process similar to Earth's Dungey cycle, offering new insight into Martian atmospheric loss and magnetic field interactions
Webb Telescope Links 'Little Red Dots' to Ancient Star Clusters
Astronomers using the James Webb Space Telescope have traced mysterious 'Little Red Dots' in the early universe to the possible origins of globular clusters, offering new clues about how these dense stellar systems formed
New Horizons Resumes Science at Solar System's Edge After Hibernation
NASA's New Horizons spacecraft has exited a 321-day hibernation and is now transmitting data from the outer solar system, preparing to study the boundary between the Sun's influence and interstellar space with advanced instruments
Possible Exomoon Candidate Challenges Definitions in Distant Star System
Astronomers using the Very Large Telescope have detected a moon-like object orbiting a brown dwarf in the CD-35 2722 system, raising questions about how to classify such bodies beyond our solar system
Juno Mission Probes Subsurface Heat on Jupiter's Volcanic Moon Io
NASA's Juno spacecraft has measured temperatures beneath Io's surface, revealing intense internal heating and unexpectedly smooth, low-density terrain. The findings, published in a peer-reviewed journal, offer new insight into tidal heating on active moons
Giant Exosatellite Discovery Redefines Boundaries of Planetary Systems
Astronomers have identified a Jupiter-sized exosatellite orbiting a brown dwarf, itself in orbit around the star CD-35 2722. The finding, made using high-resolution spectroscopy, challenges current definitions of moons and planets.
Exoplanets Smaller Than Mars May Lose Atmospheres Too Quickly for Life
A new planetary modeling study suggests rocky exoplanets must be at least 80% the width of Earth to retain atmospheres for billions of years, narrowing the search for potentially habitable worlds around sun-like stars
Webb Telescope Reveals How Early Galaxies Produced Cosmic Dust
Astronomers used the James Webb Space Telescope to study a nearby dwarf galaxy, uncovering how ancient galaxies enriched the early universe with stardust essential for star and galaxy formation
Part 4 of 5