But in recent years, astronomers have proposed that a ninth world, imaginatively nicknamed "Planet Nine," could be hiding in ...

This hypothetical extra planet, often referred to as "Planet Nine" or "Planet X" has been long-theorized to explain weird and wacky orbits of dwarf planets orbiting the sun far beyond Neptune.

Known as Planet Nine or Planet X, it is a hypothetical planet that has long been rumoured to exist in the outer solar system. Although "several claims to have found an extra planet have been made ...

Speculation swirls as scientists debate if Planet Nine is a celestial body or something darker. Clues emerge from unexplained gravitational anomalies far beyond Neptune. A radical hypothesis ...

Planet Nine, a massive icy world, may be lurking at the outer edge of our solar system, awaiting discovery by advanced telescopes. "It's really difficult to explain the solar system without Planet ...

After spending more than nine months in space, astronauts Butch Wilmore and Suni Williams are finally coming home. NASA is ...

Scientists have discovered two diamond-like planets, PSR J1719-1438b and 55 Cancri e, challenging our understanding of planetary composition and formation, and raising questions about the universe's ...

The planet's existence had first been suspected ... For decades, students learned the phrase "My Very Educated Mother Just Served Us Nine Pizzas" to remember the order of the planets in the ...

Napa Valley’s Nine North Wine Company has joined the 1% for the Planet effort, commiting a percentage of annual sales to that ...

Nine North Wine Company, a Napa-based producer of small-production wines, recently announced it has partnered with 1% for the Planet to donate 1% of all annual sales — not just profits — to ...