The Interstellar Mapping and Acceleration Probe (IMAP) is being launched later this month to study the outer reaches of the heliosphere which defines where our solar system ends and interstellar space ...

NASA is preparing to map the boundary where the solar wind meets interstellar space in its Interstellar Mapping and Acceleration Probe, set for launch sometime after September of this year. NASA ...

Gareth Dorrian does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

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

The solar system lost its ninth planet back when Pluto was demoted to a dwarf planet, but research might indicate that there ...

There may be another world lurking between the orbital lines of our solar system. Astronomers in Japan have published their theory of an “Earth-like planet,” dubbed Planet Nine, that’s hiding in plain ...

Our solar system could be hiding an extra planet in its outermost reaches. It is possible that a giant planet lurks in the Oort cloud, which begins hundreds of billions of kilometres beyond Pluto and ...

Starting with an Earth the size of a marble, these folks built a full-scale model of our solar system across 7 miles of Nevada desert. Anthony Domanico CNET freelancer Anthony Domanico is passionate ...

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 ...