Pluto's unusual eccentricity and tilt is likely due to its interactions with neighboring Neptune and other giant planets, ...

NASA says its Hubble Space Telescope has captured evidence of a white dwarf star consuming the remnants of a Pluto-like object - a scenario that may predict what will happen to planets in our own ...

Saturn’s moon Enceladus has long dazzled scientists with its icy plumes that spew water and mysterious organic molecules into space, fueling hopes of a habitable ocean beneath. But new experiments ...

The methane emission is explained by solar-excited fluorescence. Sunlight interacts with methane molecules, causing them to ...

Federal funding is about to run out for 19 active space missions studying Earth's climate, exploring the Solar System, and ...

The astronomical phenomenon of Pluto's opposition reoccurred on the 25th, providing astronomy enthusiasts with the best opportunity to observe this distant celestial body throughout the year. During ...

"Makemake is one of the largest and brightest icy worlds beyond Neptune, and its surface is dominated by frozen methane," ...

"The profile of the occultation was most consistent with it being a new satellite — a new moon — going around Quaoar." ...

"The surfaces of Nix and Hydra are as close to unaltered as you can get." Two of Pluto's midsize moons may be made of the guts of its largest moon, Charon, new research suggests. New observations with ...

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