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

The simulation of the Solar System that came the closest to the observation was the presence of a small planet, between the ...

Astronomers are investigating a potential hidden planet, dubbed Planet Y, far beyond Neptune. Its gravitational pull is ...

Pluto, the king of the underworld, was the ancient Romans' embodiment of death itself. Known as Hades in Greek mythology, ...

Pluto haze-driven climate discovered by JWST rewrites planetary science, echoes early Earth’s skies, and reshapes views of ...

Anyone hungry for the icy crunch of a Pluto -like body? No? Well, one nearby white dwarf is going all in on a Pluto-esque snack.

Kathryn Bigelow’s manhunt thriller, Zero Dark Thirty, is set to leave a free streamer at the end of the month. Find out more ...

Pisces is closely associated with the tarot card, The Moon, which symbolizes feelings of bewilderment and confusion. Their ...

A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

Learn when and where to see Comet Lemmon and Comet SWAN this October as they light up the night sky in a rare double comet ...

Comet Lemmon will have its closest brush with Earth on or around Tuesday, Oct. 21. Comet SWAN should have its flyby with ...