Science ❯ Astronomy

Galactic Studies

Milky Way Milky Way Galaxy Star Systems Perseus Constellation GALAH Project Planetary Architectures Milky Way and Andromeda Galactic Bulge Data Analysis Solar Neighborhood

Astronomers Measure Mass of a Free-Floating Planet for the First Time

A two-hour offset between Earth and Gaia views of a microlensing event provided the parallax to pin down its distance and mass.

UN Network Launches Global Campaign to Track Interstellar Comet 3I/ATLAS Before Dec. 19 Flyby

Astronomers Unveil Largest Low-Frequency Radio Color Map of the Milky Way

TOI-2267 Becomes First Binary With Planets Transiting Each Star

Gaia DR3 Maps 35,000 Variable Stars Across 1,200 Milky Way Open Clusters

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

Astronomers Launch Global Observations of Interstellar Comet 3I/ATLAS

Global Telescopes Capture Active Coma of Interstellar Comet 3I/ATLAS

Active Interstellar Comet 3I/ATLAS Set for Safe Solar System Passage

Milky Way’s Fate Hinges on 50-50 Odds of Andromeda Collision

Astronomers Confirm Nearby Binary White Dwarf System Destined for Type Ia Supernova

Astronomers Discover Heaviest Binary Star System Destined for Rare Supernova

Discovery of 'Plateau' Phase in Stars Redefines Stellar Age Estimation

ESA’s Gaia Spacecraft Officially Retired After Transforming Galactic Astronomy

ESA’s Gaia Spacecraft Officially Decommissioned After 12 Years of Milky Way Mapping

GALAH Project Unveils Chemical Fingerprints of Nearly One Million Stars

James Webb Telescope Unveils Six New Rogue Planets