Scientists may add a new dwarf planet to the official roster of our solar system. The distant, icy body, provisionally dubbed ...

A large icy world beyond Pluto could join the dwarf planet roster. Rubin observations and older images traced its orbit, but ...

Astronomers have uncovered evidence of a bizarre, potentially historic discovery: the first moon ever detected beyond our ...

An international team of astronomers has discovered eight new extrasolar planets, bringing to nearly 80 the number of planets found orbiting nearby stars. The latest discoveries, supported by the ...

The orbits of the planets around the sun have been the source for many a scientific debate. Their current orbital properties are well understood but the planetary orbits have evolved and changed since ...

As far-fetched as it may seem, quirks of orbital mechanics could allow hundreds of planets to be packed around a star ...

The shape of a planet's orbit is one of its fundamental properties, along with its size and distance from its host star. Earth has a nearly circular orbit, but some planets outside our solar system, ...