Create a fictional story about a group of astronauts who discover an alien civilization on a distant planet

Create a fictional story about a group of astronauts who discover an alien civilization on a distant planet. As they explore the planet, they uncover ancient ruins and artifacts that reveal the aliens had a society with advanced technology and knowledge. However, they soon realize that the alien civilization was destroyed by a catastrophic event, leaving behind only remnants of their once great civilization. The astronauts then must grapple with the moral and ethical implications of their discovery and decide whether to reveal this information to Earth or keep it hidden.