Complex sentence: After Kainan buries his copilot he recovers a portable computer from the wreckage and uses it to find that he is on Earth (classified by his people as an "Abandoned Seed Colony") and there are no other interstellar vessels detected nearby.
Split into simpler sentences: After Kainan buries his copilot he recovers a portable computer from the spacecraft wreckage. He uses it to find he is on Earth (classified by his people as an "Abandoned Seed Colony") and there are no other interstellar vessels detected nearby.