Activity for cjt‭

Type	On...	Excerpt	Status	Date
Question	—	Would it be possible to detect traces of a civilisation after a world-shattering collision? If the Earth was destroyed by a cataclysmic event such as a large mass colliding with it, such that it fractured into multiple pieces, would any trace of human civilisation remain intact ? I.e., if some alien race discovered the remnants and thoroughly examined them, would they find anything that wo... (more)	—	over 7 years ago