New Horizons saw Pluto’s layered organic haze scatter sunlight blue in a calibrated look-back view, even though the particles themselves were probably grey or red.
Something's wetting the surface of dwarf planet Pluto along the northern edge of Sputnik Planitia, and planetary scientists have found a good explanation for it. A recent study of new Horizons images taken during the 2015 flyby revealed…
Researchers used New Horizons images to identify evidence that liquid nitrogen may have flowed from beneath Pluto’s famous heart-shaped glacier. Dark markings across part of Pluto’s enormous heart-shaped glacier may record something…
New Horizons found Arrokoth four billion miles from the Sun, revealing a flattened contact binary whose intact lobes preserve evidence of a gentle early merger.
Mercury is close to Earth, but stopping there means shedding the speed gained while falling towards the Sun. BepiColombo spent eight years solving that orbital mechanics problem.
Liquid nitrogen on Pluto is now supported by the first physical evidence: a SwRI-led study published July 31 in the Planetary Science Journal finds that liquid nitrogen is rising through cracks in Pluto's Sputnik Planitia glacier, driven…
Pluto atmosphere collapse is now supported by measured data for the first time. A peer-reviewed study in The Planetary Science Journal analyzed ten stellar occultations between 2017 and 2023, finding a 16% atmospheric pressure drop that…
A rare alignment of the outer planets gave NASA a choice in 1980: prioritize one moon or gamble on reaching Pluto—they chose Titan, and it cost them the solar system.