It's been one Neptunian year—or about 165 Earth years—since astronomers first observed the most distant planet from the sun.

WASHINGTON (Reuters) - Frigid and far-flung Neptune, our solar system's outermost planet, is adding to its reputation as an enigmatic world, with astronomers puzzled by a surprising drop in its ...

Astronomers have discovered a new, previously unnoticed concentration of icy bodies in the Kuiper Belt, dubbed the 'inner ...

WASHINGTON, April 11 (Reuters) - Frigid and far-flung Neptune, our solar system's outermost planet, is adding to its reputation as an enigmatic world, with astronomers puzzled by a surprising drop in ...

An enigmatic, cloud-enshrouded planet that has puzzled astronomers for years turns out to be less hot than expected – and surprisingly shiny. That's what the James Webb Space Telescope revealed when ...

Astronomers are getting closer to discovering the elusive and mysterious Planet Nine after 139 "minor planets" were discovered past Neptune's orbit. These objects, ones "that were not previously ...

On a chilly morning in February 1930, a young astronomer named Clyde Tombaugh was hunched over a blinking comparator at the ...

According to Princeton researchers, the classical belt's structure should be understood as consisting of three major ...

Artist’s rendering of TOI-1231 b, a Neptune-like planet about 90 light years away from Earth. NASA/JPL-Caltech Discovering planets beyond our solar system is one thing — we’ve discovered over 4,000 ...

European astronomers report the discovery of a second alien world in the TOI-1422 planetary system located some 500 light ...

Welcome to the enchanting realm of Neptune. In its orbit, artists express their most profound ideas, musicians strum their guitars, and spiritualists connect with the ethers, where the boundaries ...