No collision, no life: Earth probably needed supplies from space - Phys.org
- No collision, no life: Earth probably needed supplies from space Phys.org
- Cataclysmic crash with neighboring planet may be the reason there's life on Earth today, new studies hint Live Science
- Life on Earth might not have emerged without a great collision Universe Space Tech
- A Mars-Sized Planet Crashed Into Earth — And Created Life As We Know It The Daily Galaxy