Calendar Of Science

Every month, Pacific Science Center publishes a Calendar of Science, a compendium of science facts to add a little knowledge to your daily routine. So, read on and discover a few things you may not have known. If you would like to receive a daily dose of science, subscribe to Calendar of Science on Twitter. We've also set up a Google Calendar to which you may subscribe. Have a comment or question? Please drop us a line. Remember, life's boring without discovery!


Jan. 1, 1801-Astronomer Giuseppe Piazzi discovered the first asteroid, which he named Ceres after the Roman goddess of agriculture.
Jan. 2, 1822-Birthday of physicist Rudolf Clausius, who discovered the first and second laws of thermodynamics.
Jan. 3, 1906-Birthday of astronomer William Morgan, who discovered that the Milky Way Galaxy is a spiral galaxy.
Jan. 4, 1809-Birthday of teacher Louis Braille, who invented a reading system for the blind.
Jan. 5, 2005-A team led by astronomer Mike Brown discovered Eris, which used to be considered the tenth planet.
Jan. 6, 1822-Birthday of archaeologist Heinrich Schliemann, who discovered and excavated the site of ancient Troy.
Jan. 7, 1610-Galileo discovered Io, Callisto & Europa, three of Jupiter's moons. Four days later he discovered a 4th moon, Ganymede.
Jan. 8, 1823-Birthday of Alfred Russel Wallace, who along with Charles Darwin formulated the theory of evolution by natural selection.
Jan. 9, 1998-A team of astronomers led by Saul Perlmutter announced their discovery that the expansion of the universe is accelerating.
Jan. 10, 1638-Birthday of geologist Nicolaus Steno, discovered the law of superposition.
Jan. 11, 1787-Astronomer William Herschel discovered Uranus's moons Titania and Oberon.
Jan. 12, 1907-Birthday of engineer Sergei Korolev, who led the team which launched Sputnik, the first artificial earth satellite.
Jan. 13, 1864-Birthday of physicist Wilhelm Wien, discovered how to measure the surface temperature of stars by observing their spectra.
Jan. 14, 2005-European Space Agency's Huygens probe landed on Saturn's moon Titan and sent back many photographs of its surface.
Jan. 15, 1907-Inventor Lee de Forest patented the Audion vacuum tube, which made live radio broadcasting possible.
Jan. 16, 1932-Birthday of zoologist Dian Fossey, who studied the mountain gorillas of central Africa and wrote Gorillas in the Mist.
Jan. 17, 1560-Birthday of Gaspard Bauhin, introduced the practice of using binomial names, one for the genus and one for the species.
Jan. 18, 1825-Birthday of chemist Edward Frankland, discovered the principle of valency.
Jan. 19, 2006-NASA launched the New Horizons spacecraft, which is expected to reach Pluto in July, 2015.
Jan. 20, 1910-Birthday of biologist Joy Adamson, wrote the book Born Free and advocated better protection of wild animals.
Jan. 21, 1912-Birthday of biochemist Konrad Bloch, discovered how the human body produces cholesterol.
Jan. 22, 1561-Birthday of philosopher Francis Bacon, formulated the principles of the scientific method.
Jan. 23, 1857-Birthday of geologist Andrija Mohorovicic, discovered the boundary between the Earth's crust and mantle.
Jan. 24, 1986-Voyager 2 spacecraft made its closest approach to Uranus, taking dozens of photographs and finding ten new moons.
Jan. 25, 1627-Birthday of chemist Robert Boyle, invented the litmus test for acids and bases.
Jan. 26, 1884-Birthday of Roy Chapman Andrews, discovered many important fossils including Velociraptor and the first dinosaur eggs.
Jan. 27, 1888-National Geographic Society founded. Its magazine National Geographic began publication in October of the same year.
Jan. 28, 1858-Birthday of geologist Eugene Dubois, discovered the remains of Java man, the first known fossil of Homo erectus.
Jan. 29, 1901-Birthday of engineer Allen DuMont, invented 1st cathode ray tube which would not burn out after about 24 hours.
Jan. 30, 1925-Birthday of electrical engineer Doug Engelbart, who invented the computer mouse.
Jan. 31, 1862-Astronomer Alvan Clark discovered Sirius B, the white dwarf companion of Sirius. 1st white dwarf star to be discovered.