Why all living organisms need to have dna

Living organisms need DNA because the DNA is the genetic code for living organisms. It determines the characteristics of the organism.
 

All living organism need to have DNA because without DNA the organism  would not be able to replicate itself.

The soviet union beat the us to the first successful launch, with the october 4, 1957, orbiting of sputnik 1, and later beat the us to have the first human in earth orbit, yuri gagarin, on april 12, 1961. the "race" peaked with the july 20, 1969, us landing of the first humans on the moon with apollo 11