Science ❯ Astronomy ❯ Celestial Bodies

Stars

Antares Red Dwarfs Betelgeuse Vega Sun Spica Pleiades Mars Regulus Sirius HD 181327 Black Holes Pleiades Star Cluster Star Systems 14 Herculis Planets Andromeda Galaxy Star Formation Milky Way Galaxy Binary Stars Magnitude Scale Red Dwarf Stars Fixed Stars Dwarf Stars Visibility Polaris Fomalhaut Cúmulo del Pesebre (M44) Mira Milky Way Constellations Protostars Neutron Stars Nebulae Orion

Moon Meets Regulus Tonight Across North America

Jupiter approaches its brightest, closest point of the year with opposition on Jan. 10.

Rare Dawn Conjunction of the Moon, Venus and Regulus Thrills Early Risers on Sept. 19

ALMA Maps Fomalhaut’s Warped Debris Ring, Pointing to Hidden Planet Sculptors

8% Crescent Moon Meets Mars Low in the West Tonight

Six-Planet Parade Continues as Mercury Rises and Moon Approaches

Moon Passes Within Half-Degree of Antares in Tonight’s Sky

NASA’s CODEX Maps Gusting Plasma Flows in Sun’s Outer Atmosphere

Saturn-Sized Exoplanet Orbits Record-Low Mass Star, Challenging Formation Theories

June Sky to Stage Antares Occultation, Strawberry Moon and Key Planetary Pairings