Strange faint rings appeared across Venus in polarized light, and a forgotten telescope observation may have captured a hidden atmospheric phenomenon no one knew to look for
A tiny speck of light emerging only 52 milliarcseconds from the blazing face of Betelgeuse may finally explain why one of the night sky’s most famous stars has spent decades fading and brightening on a mysterious six-year rhythm that astronomers could never fully account for
Astronomers Finally Found a Tidal Disruption Event Far from Any Galactic Center, Revealing a Long-Suspected Wandering Black Hole That Shouldn’t Be There
Strange 511,000-Electron-Volt Glows Beyond the Milky Way May Be the First Hints That Other Galaxies Are Producing the Same Positron Signal Long Seen in Our Own
Scientists Discover a Miniature Earth-Like Dungey Cycle Above Mars That Powers Some of the Planet’s Brightest Auroras
Astronomers Discover Mysterious Cosmic Explosion AT2019ijn That May Represent a New Class of Relativistic Optical Transients
Europa’s Hidden Ocean May Be More Isolated Than Scientists Thought, New Simulations Challenge Pathways to the Surface
James Webb Reveals Six Young Galaxies Packed Into a Tiny Region, Offering Rare View of Early Giant Galaxy Formation
Jellyfish Nebula May Be Half of the First Known Binary Star System Where Both Stars Exploded as Supernovae
Scientists Detect the First Sugar Ever Found in Interstellar Space, Suggesting Key Ingredients for Life Formed Before Earth
James Webb Telescope Reveals Possible Most Distant Barred Spiral Galaxy From Less Than 1.2 Billion Years After the Big Bang
Repeated Brightening Reveals “Phoebe” Is an Ordinary Variable Star, Not the Long-Sought Lunar-Mass Primordial Black Hole
Giant Exoplanet GJ 436 b Appears to Leave a Magnetic Imprint on Its Host Star, Revealing a Two-Way Star–Planet Relationship
Nearby Exoplanet GJ 3378b May Be More Earth-Like Than Scientists Thought After New Measurements Cut Its Mass in Half and Strengthen Its Habitability Potential
NASA’s TESS Discovers Its First Microlensing Planet Revealing a Hidden Super-Jupiter and Suggesting Years of Archived Data May Contain More Undetected Worlds
Scientists Propose a New Way to Measure Black Hole Entropy That Could Transform How Physicists Study Merging and Evaporating Black Holes
NASA’s Stunning Hubble Image Reveals More Than 500,000 Stars in Ancient Globular Cluster M3, Offering Fresh Clues to the Milky Way’s History
