Gravity might have pulled Triton away from its companion to make it an orbiting satellite of Neptune, researchers report in a new study published in the May 11 issue of journal Nature.

A computer-generated montage shows Neptune from the perspective of a spacecraft approaching Triton, the planet's largest moon. (Image credit: NASA) ...

After identifying an unusual trend in the movement of the hot Jupiter planet TOI-2818b, the team, from the UNSW School of Physics, ran a series of model simulations that pointed to the presence of ...

The Sun may have started out life with a companion—and that may have big implications for the mysterious "Planet 9".

Triton is unique among all the large moons in the solar system because it orbits Neptune in a direction opposite to the planet’s rotation (a “retrograde” orbit).

Francesco Marzari, Makiko Nagasawa, Krzyszof Goździewski Planet Planet scattering is a leading dynamical mechanism invoked to explain the present orbital distribution of exoplanets. Many stars ...

Curious about the odd behavior of the planet Neptune’s two moons, Triton and Nereid, he set out to make a mathematical analysis of their unusual orbits.

Triton was discovered in 1846 by the British astronomer William Lassell, but much about Neptune’s largest moon still remains a mystery.

A team of international researchers led by Tomas Stolker in the Netherlands has imaged a young gas giant exoplanet near a 12-million-year-old star. The planet is orbiting a star whose planet formation ...

Triton, unique among all the large moons in the solar system because it orbits Neptune in a direction opposite to the planet's rotation, may have abandoned an earlier partner to arrive in its ...