Our Solar System is beautiful, mysterious, largely unknown… and accessible. In the next hundred years, we can send robotic craft, and even human hands, to many of those worlds.

Findings serve as 'picture of the baby solar system' It's not uncommon for astronomers to see protoplanetary discs containing infant Jupiter-like planets around baby stars like HOPS-315.

Scientists have thought that our solar system's inner rocky planets — Mercury, Venus, Earth and Mars —formed first (around 4.566 billion years ago), while gas giants and icy bodies in the ...