Astronomy - Part 3
207 reports
Webb Telescope Reveals Early Galaxies Are Richer in Small Stars
Astronomers using the James Webb Space Telescope have detected a higher proportion of faint, low-mass stars in ancient galaxies, suggesting these early systems are more massive than previously estimated
Richat Structure's Concentric Rings Imaged from the International Space Station
A new photograph from the International Space Station captures the Richat Structure, a 40-kilometer-wide geologic formation in Mauritania, revealing its striking concentric rings as seen from orbit
Webb Telescope Spots Candidate Black Hole Star in Early Universe
Astronomers using the James Webb Space Telescope have identified a luminous, solar-system-sized object from 660 million years after the Big Bang, offering the strongest evidence yet for a hypothesized 'black hole star' class.
Fastest Known Star Orbits Milky Way's Black Hole in Under 9 Years
Astronomers using the Very Large Telescope Interferometer have identified S301, a star orbiting Sagittarius A* at record speed, offering a new opportunity to test general relativity near the Milky Way's supermassive black hole
Hubble Data Reveals Ancient Milky Way Merger with Dwarf Galaxy
Astronomers have identified evidence that the Milky Way merged with a dwarf galaxy called LKH about 12 billion years ago, using globular cluster data from the Hubble Space Telescope and extending the timeline of our galaxy's early evolution
Total Solar Eclipse Observed Over Greenland's Remote Fjords
A rare total solar eclipse was observed from the deck of a research vessel in East Greenland, offering scientists and eclipse chasers a unique view of totality above icebergs and glaciers under clear Arctic skies
Five Essential Night Sky Targets for Binocular Astronomy
Astronomers highlight five celestial objects and regions that reveal striking detail through binoculars, from the Moon's shifting shadows to the Andromeda Galaxy's faint glow, offering accessible entry points for skywatchers of all experience levels
Discovery of GJ 523b Challenges Theories of Rocky Planet Formation
Astronomers have identified GJ 523b, a rocky exoplanet over 23 times Earth's mass, using TESS and ground-based spectroscopy, raising new questions about how such dense worlds form and retain-or lose-their atmospheres
ISS Spacewalk Removes Failed Antenna but Replacement Delayed
NASA astronaut Anil Menon and ESA's Sophie Adenot removed a nonfunctional antenna from the International Space Station during a six-hour spacewalk, but time constraints postponed installation of the replacement hardware
Sophie Adenot Becomes First French Woman to Walk in Space
European Space Agency astronaut Sophie Adenot is set to conduct a 6.5-hour spacewalk outside the International Space Station, marking the first time a French woman has participated in an extravehicular activity
Helix Nebula Reveals How Dead Stars Return Material to the Galaxy
Astronomers using the MOTHRA instrument have observed the Helix Nebula dispersing its outer layers into the interstellar medium, providing direct evidence of stellar material recycling that will enrich future generations of stars
Deneb and Cygnus: Tracing Stellar Remnants and a Nearby Black Hole
Astronomers use optical and X-ray observations to study Deneb, the Cygnus Loop supernova remnant, and the black hole Cygnus X-1, revealing the complex structure of the Cygnus constellation and its hidden extremes
Hubble Reveals Ancient Dwarf Galaxy Merger in Milky Way's Early History
Astronomers using the Hubble Space Telescope have identified evidence of a major merger between the young Milky Way and a dwarf galaxy nearly 12 billion years ago, pushing the timeline of our galaxy's assembly further into the past
NASA Telescopes Map Energy Loss in Tarantula Nebula
A composite image from Chandra, Webb, and Hubble reveals how the Tarantula Nebula in the Large Magellanic Cloud is shaped by young stars and energetic gas, offering new insight into star formation and nebular evolution
Trillion-Mile Gas Streamer Tilts Planet-Forming Disk in GW Orionis
Astronomers using ALMA have observed a massive gas streamer disrupting the planet-forming disk around the young triple-star system GW Orionis, offering new insight into the origins of misaligned planetary orbits
Webb Telescope Reveals Three Supermassive Black Holes in Distant Galaxy
Astronomers using the James Webb Space Telescope have identified three supermassive black holes within a single galaxy seen as it was 12.5 billion years ago, offering new evidence for rapid black hole growth through mergers in the early universe
Asteroid Samples Reveal DNA and Protein Building Blocks in Space
Laboratory analysis of asteroid material returned to Earth has identified all five nucleobases of DNA and RNA, as well as multiple amino acids, suggesting the chemical ingredients for life are common in the solar system and beyond
NASA AI Model Predicts Sunspot Emergence Hours Before Surface Appearance
A NASA-led team has developed an AI model that analyzes acoustic and magnetic data from the Sun to forecast the emergence of active regions up to 12 hours in advance, offering new potential for space weather prediction
Webb Telescope Detects Water and Dust Near Milky Way's Black Hole
Astronomers using the James Webb Space Telescope have identified water and silicate dust around a dying star less than 0.6 light-years from Sagittarius A*, challenging assumptions about molecule survival near supermassive black holes
How to Observe a Shadow Cast by Venus in the Night Sky
Venus is nearing its peak brightness, offering a rare chance to observe whether the planet can cast a visible shadow. Astronomers explain the conditions and techniques needed to detect this subtle phenomenon.
Celestron Moon Mission Travel Scope 70 Offers Accessible Stargazing
A review of the Celestron Moon Mission Travel Scope 70 examines its optical performance, ease of use, and limitations for beginners and young astronomers, highlighting what this portable refractor can and cannot reveal in the night sky
Black Hole Winds Drive Turbulence Far Beyond Host Galaxy
Observations with Japan's XRISM X-ray satellite reveal that outflows from a supermassive black hole in a distant quasar are far more powerful than previously estimated, stirring hot gas across intergalactic space
Perseids Meteor Shower Peaks in August Night Skies
The Perseids meteor shower, one of the brightest annual displays, reached its peak on August 12-13, with meteors visible against the backdrop of Orion. Observations were made from dark-sky sites using unaided eyes and standard cameras.
Webb Telescope Resolves Closest Black Hole Pair in Early Universe
Astronomers using the James Webb Space Telescope and ALMA have identified two supermassive black holes just 4,900 light-years apart in a galaxy merger 1.3 billion years after the Big Bang, offering new insight into rapid black hole growth
Astranis Unveils Perceptor Satellites to Track Activity in Geostationary Orbit
Astranis has announced the development of Perceptor satellites designed to monitor and analyze spacecraft movements in geostationary orbit, a region increasingly important for communications and national security
Two Major Solar Eclipses Will Cross Three Continents in 2027
Astronomers are preparing for two rare solar eclipses in 2027, including a 'ring of fire' annular eclipse in February and an unusually long total solar eclipse in August, both visible across parts of South America, Africa, and Europe
Partial Solar Eclipse and Perseid Meteors Offer Rare Double Event
On August 12, observers across North America and Europe will witness a partial solar eclipse by day and the Perseid meteor shower by night, with optimal viewing conditions expected due to the new moon and clear skies in many regions
How Solar Eclipses Shaped Ancient Views of the Cosmos
William Sheehan's new book examines the earliest recorded solar eclipses, including Archilochus's eyewitness account, and explores how these rare events influenced ancient astronomy and religious thought
Comet 220P/McNaught Imaged in Unusual Bright Outburst Over Namibia
Astrophotographers in Namibia have captured a rare, vivid image of comet 220P/McNaught during a dramatic brightening event, using a 12-inch telescope and advanced camera equipment
Ancient Mars Meteorite Reveals Unexplored Era in Red Planet's History
A 1.27-billion-year-old Martian meteorite found in Algeria is providing rare insight into a previously undocumented period of Mars' geological evolution, according to new laboratory analysis
eROSITA X-ray Survey Nearly Doubles Known High-Energy Cosmic Sources
The eROSITA X-ray telescope's latest data release catalogs nearly 2 million X-ray sources, offering an unprecedented view of black holes, galaxy clusters, and stellar remnants across the universe
NASA's Roman Space Telescope Targets Dark Energy and Exoplanets
NASA's Nancy Grace Roman Space Telescope, set for launch in 2026, will use infrared instruments to investigate dark energy, dark matter, and exoplanets from a stable orbit 1.5 million kilometers from Earth
Astronomers Map 4 Billion Cosmic Objects in Largest 2D Sky Survey
A new 2D map of the universe, built from 13 years of ground and space-based observations, catalogs 4 billion stars, galaxies, and other objects, offering an unprecedented resource for future astronomical research
Can Perseid Meteors Be Seen During the 2026 Total Solar Eclipse
Astronomers assess whether Perseid meteors will be visible during the total solar eclipse on August 12-13, 2026, as the Moon's shadow crosses Greenland, Iceland, and Spain, and explain the observational limits imposed by eclipse conditions
1972 Daylight Fireball Skimmed Earth's Atmosphere Over North America
On August 10, 1972, a large meteoroid entered Earth's atmosphere over Utah and exited over Alberta, Canada, producing a rare daylight fireball visible across North America and offering a unique opportunity to study atmospheric entry dynamics
Part 3 of 6