It will be a while before you can see it for yourself, however. Halley’s comet was last visible from Earth in 1986, meaning ...

Discovered in 1846 through mathematics rather than sight, Neptune was the first planet found by calculation — astronomers ...

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

Washington, DC – Three new objects locked into roughly the same orbit as Neptune–called “Trojan” asteroids–have been found by researchers from the Carnegie Institution’s Department of Terrestrial ...

A mysterious space object named 2023 KQ14, nicknamed “Ammonite,” challenges theories about the mysterious and possible Planet ...

The existence of "Planet Nine," a hypothetical planet in the outer solar system, is supported by indirect evidence such as the unusual clustering of orbits of extreme trans-Neptunian objects (ETNOs) ...

Astronomers studying the distant reaches of our Solar System have identified an unusual trans-Neptunian object (TNO) locked in a rare orbital configuration with Neptune. The object, discovered through ...

this desert describes an absence of planets with masses up to around 20 times the mass of Earth that orbit close to their stars, planets scientists refer to as "hot Neptunes." "The complexity of the ...

New images released Wednesday from NASA's James Webb Space Telescope are revealing Neptune, and the planet's hard-to-detect rings, in a fresh light. "It has been three decades since we last saw these ...