At the far edge of the Solar System, where the Sun’s influence thins into the dark between the stars, a pair of aging ...
Comet 3I/ATLAS' CO₂-rich coma offers new clues about distant star systems, revealed through NASA and ESA ultraviolet, X-ray, ...
Astronomers using the James Webb Space Telescope have uncovered a distant world that looks and behaves nothing like the ...
Astronomers believe the solar system's early days were a cosmic bumper-to-bumper, with planetesimals, asteroids, and comets ...