A visible line of planets has for weeks been the talk of astronomers and hobbyist stargazers who have sought to catch a sight of our solar system's worlds. Online chatter and a frenzy of media ...

Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A cloud of collapsing gas created our Sun, the first thing to form in ...

Theia' is a long-vanished world, a planet-sized body thought to have smashed into the early Earth and that helped to form the moon.

Our solar system’s origin story spans billions of years and involves clouds of gas, cosmic collisions, and planetary migrations that shaped the worlds we know today. While it may seem intuitive that ...

INDIANA, USA — Stargazers, mark your calendars! A rare seven-planet alignment will be visible in the early night sky in late February 2025. While we’ve enjoyed a six-planet alignment since mid-January ...

Those enjoying the show the heavens have been kind enough to provide in April, such as the pink moon or Paschal moon, are in for another treat. This is because of a rare alignment of two planets, and ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Curious Kids is a series for children of all ages. If you have a question you’d like ...

This article was originally featured on The Conversation. Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A cloud of ...

Lucas Brefka receives funding from a NASA Exoplanet Research Program grant. Christopher Palma does not work for, consult, own shares in or receive funding from any company or organization that would ...