Starfarers

"When SETI astronomers stumble upon evidence of a highly advanced starfaring civilization, an expedition made up of a motley assortment of scientists is put together to investigate, but their journey could have unexpected ramifications."@en
"Story of an expedition into the far reaches of the galaxy, where answers to mankind's greatest questions await. The saga begins when evidence of an advanced civilization is discovered by SETL astronomers."@en
"Captain Ricardo Iriarte Nansen Aguilar and his crew embark on a life-changing expedition aboard the starship Envoy when they set out to investigate what appears to be evidence of intelligent life in outer space."
"A spaceship leaves Earth to make contact with another civilization, a trip which will take ten years. The novel describes the impact of the trip on the crew's psyche and their reaction when they return to Earth, where thousands of years have elapsed. By the author of The Fleet of Stars."