NASA/Goddard Space Flight Center/Conceptual Image Lab
- Comets may have delivered the seeds of life to Earth, scientists say.
- They could also have delivered similar building blocks of life to other planets.
- A new study could help narrow down the search for exoplanets that could carry life.
Comets may hold the secret to finding alien life, according to new research.
Scientists at Cambridge University propose that comets may "bounce" around the universe, carrying the essential ingredients to create life on alien worlds.