The sun has become more and more active over the last 16 years, in a turn that surprised scientists and could affect space ...

Travel through time to witness some of the most remarkable episodes in our solar system's history, uncovering its ancient origins and glimpsing the destiny that awaits it in the distant future ...

A mysterious object from beyond our solar system, 3I/ATLAS, has recently captured the attention of astronomers once again.

Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the discovery of Pluto in the 1930s. Labelled as Planet X, prominent astronomers ...

The Solar System is vast, made up of eight planets, countless moons, and millions of asteroids, all orbiting the Sun. But like any territory, it has a boundary. This boundary is invisible, yet it ...

Excitement is mounting for one of nature’s most unique spectacles, the total solar eclipse, set to cast a historic shadow across a path through the United States on April 8, 2024. The track of the ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. The size of the solar system is defined by the volume ...

A group of astronomers from the US, Europe, Chile and South Africa have determined that 70,000 years ago a recently discovered dim star is likely to have passed through the solar system’s distant ...

Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory about the possibility of a giant ninth planet. The dwarf planet's existence ...