Saturn Run by John Sandford

In a near-future setting, a startling discovery of an alien spacecraft near Saturn propels a high-stakes race between the United States and China to reach the mysterious object first. As both nations scramble to develop the technology and resources needed for the journey, a diverse team of scientists, engineers, and military personnel must navigate political tensions, technical challenges, and personal conflicts. The mission's success could redefine humanity's place in the universe, but the crew must confront unforeseen dangers and ethical dilemmas that test their resolve and unity.