Project Hail Mary by Andy Weir

Scientific and great. What’s eating the sun? When extra-terrestrial’s first interaction with life on Earth, is them eating the sun, almost quite literally. This prompts multiple high officials and scientist from around the globe to come together and create a plan to learn about these alien life forms and their purpose to find a solution, or risk catastrophic events around the earth as the sun is quickly losing its energy.

Where did they come from? Do they wander space? Or, do they have a home planet of their own? I believe this novel to be quite mysterious and surprising though out its story.