The Remnant: A Hard Sci-Fi Epic Thriller (Halcyon Dreams Book 1)

In space, the ultimate enemy is physics.
When the Europa Clipper detects an anomaly on the Galilean moon’s icy surface, the implications are immediate—and terrifying. Something is out there, and it isn’t human. Private launch companies and national space agencies scramble to build remote landers to go and study this incredible find.
Not tech billionaire Jack Relis though. Tormented by strange dreams of a lost artifact, he recruits a team of daredevil astronauts and maverick engineers to build a manned spacecraft. Their high-risk, go for broke mission: get there first, and bring whatever they find back to Earth.
If they succeed, a new age of humanity begins.