1964

Events

• The first recognition of cosmic microwave background radiation as a detectable phenomenon occurs.
  This confirmation secured the "Big Bang" theory as the best thought as to the origin and evolution of the universe.

• Spacecraft "Ranger 7" sends back to Earth the first close-up photographs of the Moon.
  These images are 1,000 times clearer than anything ever seen from Earth-bound telescopes.

• Probe "Mariner 4" is launched with the intention of exploring Mars (by means of a flyby).
  Designed to conduct closeup scientific observations and transmit these photographs and observations back to Earth,
  this probe produced the first close-up pictures of another planet's surface.

• The first heart transplant was done on a Human, using a chimpanzee heart.
  The organ is rejected just a few hours later.

Timeline
1963	1964	1965