See also: 1671 in science, other events of 1672, 1673 in science and the list of years in science.
Astronomy John Flamsteed determines the solar parallax from observations of Mars Giovanni Cassini discovers Rhea, a satellite of Mars Sir Isaac Newton reads 1st Optiks paper before Royal Society of London Births Deaths Simon Dezhnev, Russian Cossack navigator, who in 1648 made the first recorded voyage through the Bering Strait (born 1605)
