Earthsearch Series by James Follett

There is a legendary place in the culture of Arama whose origins are lost in pre-history. It is a place outside the great caverns of the known world. An unimaginable place peopled with demons and the damned. A place so steeped in fears and superstitions that the dread consequences of being banished there are enshrined in children's nursery rhymes.But two students, Jenine and Ewen, believe that such a place really exists... moreThere is a legendary place in the culture of Arama whose origins are lost in pre-history. It is a place outside the great caverns of the known world. An unimaginable place peopled with demons and the damned. A place so steeped in fears and superstitions that the dread consequences of being banished there are enshrined in children's nursery rhymes.But two students, Jenine and Ewen, believe that such a place really exists. They are destined to become technicians- the elite band of holy men and women that rule Arama- and yet they abandon their studies and become fugitives in a terror-filled relentless quest.They don't know what they are looking for.They don't even know what it looks like.All they know is its name: The Outdoors. less

The "Challenger" crew were all born on their starship, had never set foot on a planet but knew that Earth was their spiritual home. So when it vanished from the solar system, their search began to locate the planet that the inhabitants had taken to find a new sun - one that would not become a nova.

Four million years ago the crew of the starship Challenger abandoned the search for their home Earth - the birthplace of their grandparents - and settled on the third planet of a solar system on the fringe of the galaxy, leaving Angel One and Angel Two, the Challenger's control computers, to continue the search in the starship.The four settlers called their new home Paradise... moreFour million years ago the crew of the starship Challenger abandoned the search for their home Earth - the birthplace of their grandparents - and settled on the third planet of a solar system on the fringe of the galaxy, leaving Angel One and Angel Two, the Challenger's control computers, to continue the search in the starship.The four settlers called their new home Paradise. With seven-tenths of its surface covered in water, deep blue skies, and an abundance of lakes, rivers and lush forests, the planet is unlike the Earth that the four settlers used to study in the Challenger's vast hologram and video library. less