Astrophysics

Cosmology Cosmic Phenomena Observational Astronomy Stellar Evolution Galaxies Black Holes Star Formation Celestial Mechanics Planetary Science Orbital Mechanics

NASA Confirms 3I/ATLAS as Natural Interstellar Comet, Not Alien Spacecraft

It reveals an 11.2-kilometer nucleus on a hyperbolic orbit making a rare October 30 perihelion inside Mars’s path.

TESS Observations Confirm Early Cometary Activity of 3I/ATLAS as Juno Intercept Proposal Gains Attention

2026 Solar Eclipse Cruises Sell Out as 2027 Event Preparation Intensifies

Five Papers Showcase NIRPS’s Exoplanet Discoveries and High-Precision Performance

LuSEE-Night Enters Final Prep for Moon’s Far-Side Radio Telescope Mission

Framework for Lava Planet Evolution Secures 100 Hours of JWST Time

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CERN Demonstrates First Antimatter Qubit with 50-Second Coherence

New Analysis Bolsters Natural Cometary Origin for Interstellar Visitor 3I/ATLAS

Apollo 16 Samples Show Solar Wind Erodes Moon Surface Ten Times Less Than Expected

Probe Theory for Interstellar Comet 3I/ATLAS Divides Researchers as October Perihelion Nears

NASA Begins Commissioning TRACERS Satellites After Falcon 9 Launch

Perseids Fly Under Moonless Skies as Delta Aquariids and Capricornids Prepare for July 30 Peak

Study Finds Earth's Temporary Moons Are Lunar Impact Debris

XRISM Maps Sulfur in Gas and Solid Phases Across the Milky Way

Scientists Confirm Companion Star Orbiting Within Betelgeuse’s Atmosphere

Hubble Captures Coma of Interstellar Comet 3I/ATLAS as Experts Uphold Natural Origin

Telescopes Witness Key Stages of Planet Formation in Three Young Star Systems

New Models Identify Webb’s Little Red Dots as Primordial Supermassive Stars

Pope Leo XIV Visits Vatican Observatory and Calls Buzz Aldrin on Apollo 11 Anniversary

Mineral Condensation Captured in Planet-Forming Disk of Protostar HOPS-315