An artist’s rendering of the IMAP spacecraft, which will explore and chart the boundaries of the ...

IMAP will launch aboard a SpaceX Falcon-9 on a mission to chart the very edge of the solar system — the heliosphere’s boundary— where the Sun’s influence yields to the interstellar medium.

The spacecraft will study the solar system's edge, magnetic fields in interplanetary space, and remnants of exploded stars.

The US space agency NASA successfully launched three missions into space on Wednesday that seek to map the heliosphere.

Have you ever wondered just how big space really is? It’s huge. In fact, it’s astronomical! The Colorado Scale Model Solar System depicts the Sun, the planets, and the distances between them all on ...

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 ...

Astronomers are getting rather excited about the news that a giant planet 10-times the mass of Earth and dubbed ‘Planet Nine’, has likely been discovered on the fringes of our solar system. For a ...