Comets may have acted as a vehicle for transporting noble gases in the early phases of the solar system, also playing an important role in the composition of the atmosphere.
Comet Lovejoy may have hit the earth at some distant past and triggered off signs of life.
Researchers are moving towards identifying the genes that lead to aging.
By rewiring the DNA of microorganisms, researchers have ensured their leak into the world is not catastrophic.
