• January 1 – Long-period
comet C/1963 A1 (Ikeya) is discovered by a Japanese amateur. • January 4 – Soviet
Luna reaches Earth orbit but fails to reach the Moon. • May 15 –
Mercury program:
NASA launches the last mission of the program
Mercury 9. (On June 12 NASA Administrator
James E. Webb tells Congress the program is complete.) • July 26 –
Roy Kerr submits for publication his discovery of the
Kerr metric, an
exact solution to the
Einstein field equation of
general relativity, predicting a
rotating black hole. • October 18 – Aboard the French
Véronique AGI 47
sounding rocket, a
bicolor cat designated C 341, later known as
Félicette, becomes the first cat in space. • November 1 – The
Arecibo Observatory, with the world's largest single-dish
radio telescope, officially opens in
Arecibo, Puerto Rico. • First definite identification of a radio source,
3C 48, with an optical object, later identified as a
quasar, is published by
Allan Sandage and
Thomas A. Matthews; also
Maarten Schmidt publishes significant observations on
3C 273. ==Biology==