Arizona stargazers, mark your calendars because on Friday, Sept. 19, the night sky will host a celestial conjunction. Not to be confused with an alignment, a conjunction occurs when two or more ...

It's been a year full of celestial events, which may have sparked an interest in astronomy for many. When looking up at the night sky, it's easy to get confused about what you're looking at, ...

A cosmic spectacle is unfolding overhead, with a rare parade of planets turning the night sky into a celestial stage in January and February 2025. The new year kicked off with seven planets aligning ...

The Sun, our nearest celestial neighbor, is undeniably a star, not a planet, as centuries of astronomical observations have confirmed. However, the boundaries of celestial definitions are continually ...

An alignment of six planets will dazzle in January 2025. Venus, Mars, Jupiter, Saturn, Uranus and Neptune will align in the night sky. "The whole month of January is a great time to see the planets," ...

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 ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. An illustration of confirmed dwarf planets and their moons. From left to right: Pluto (with ...

It's an evocative idea that has long bedeviled scientists: a huge and mysterious planet is lurking in the darkness at the edge of our solar system, evading all our efforts to spot it. Some astronomers ...

When astronomers search for planets that could host liquid water on their surface, they start by looking at a star's habitable zone. Water is a key ingredient for life, and on a planet too close to ...