1846 in science

The year 1846 in science and technology involved some significant events, listed below.
Astronomy

February 20 – Francesco de Vico discovers comet 122P/de Vico.
June 1 – Urbain Le Verrier predicts the existence and location of Neptune from irregularities in the orbit of Uranus.
August 8 – Neptune observed but not recognised by James Challis.
August 31 – Urbain Le Verrier publishes full details of the predicted orbit and the mass of the new planet.
September 23 – Johann Galle discovers Neptune.
October 10 – William Lassell discovers Triton, Neptune's largest moon.

Biology

Royal Botanic Gardens, Melbourne, established in Australia.

Chemistry

Abraham Pineo Gesner develops a process to refine a liquid fuel, which he calls kerosene, from coal, bitumen or oil shale.

Mathematics

Augustin-Louis Cauchy publishes Green's theorem.
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