New simulations show 90% chance of outer solar system disintegration within 1 billion years after Sun becomes a white dwarf. ...

Astronomer Bob Donahue will discuss how the definition of a planet has changed, including the roles of Pluto, dwarf planets ...

Thousands of exoplanets have been discovered in recent decades, yet Earth remains the only known world with life.

Suzie Dills of the McKinley Museum's Planetarium wistfully remembers the day Pluto was dropped to a dwarf planet status.

A luxury Sydney home sold at a 35% discount to its 2022 purchase price, a combination of the previous owners badly overpaying and a downturn in prices, particularly for luxury properties. Several ...

Anyone who grew up learning that our solar system has nine planets probably remembers the moment Pluto got demoted. That ...

Topics for September 27 to use in morning assemblies, business meetings, and workplace small talkSeptember 27, 2026 (Sun) ...

Unlike most of the other 6,000 confirmed exoplanets — a term used for planets outside of the Earth’s solar system —which are ...

Deep inside the caves of Gabon, a pioneering researcher is discovering how these cryptic carnivores push the limits of adaptation. Conservation ecologist Matt Shirley studies how the African dwarf ...

A new study suggests that our solar system’s smallest planet has shrunk by up to 30 percent since its birth roughly 4.5 ...

A possible Jupiter-sized object circling the brown dwarf CD-35 2722 b has implications for planetary science, including what ...

When compiling my notes, I add icons to the celestial bodies and sensitive points used in horoscopes. Since I have added some new ones, I would like to delve into them starting with the dwarf planets.