imminent deep impact

alien apocalypse aquarids astronomy atmosphere august big bright catastrophe close coast comet cosmos danger darkness death deep destruction earth end energy environment extermination extraterrestrial falling fantastic fiction final flames glacial global globe humanity imminent impact leonids lyrids menace meteor meteorite meteors natural nature night ocean orbit orbital orionids perseids phenomenon planet power quadrantids rain reflect reflecting relief risk rock science shower somewhere space star stars tsunami universe warming water world