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!


March 1 1896-Henri Becquerel discovered radioactivity, found a photographic plate fogged after he left it next to a sample of uranium ore.
March 2 1972-Pioneer 10 launched. 1st space-craft to cross the asteroid belt and fly past Jupiter.
March 3 1879-Birthday of biochemist Elmer McCollum, who discovered vitamin A and vitamin D.
March 4 1904-Birthday of physicist George Gamow who predicted the existence of the cosmic background radiation.
March 5 1574-Birthday of mathematician William Oughtred, who invented the slide rule.
March 6 1787-Birthday of physicist Joseph von Fraunhofer, 1st to study the dark lines in the Sun's spectrum (now called Fraunhofer lines).
March 7 2009-NASA launched the Kepler space telescope. Its mission to search for Earth-like planet.
March 8 1979-Voyager 1 discovered active volcanoes on Jupiter's moon Io.
March 9 2006-NASA announced the Cassini spacecraft had discovered geysers of water vapor on Saturn's moon Enceladus.
March 10 1876-Alexander Graham Bell transmitted the first words over a telephone: "Mr. Watson, come here. I want you."
March 11 1811-Birthday of astronomer Urbain Leverrier, correctly predicted the position of Neptune.
March 12 1784-Birthday of geologist William Buckland, 1st to name and describe the partially preserved skeleton of a dinosaur (Megalosaurus).
March 13 1781-Astronomer William Herschel discovered Uranus.
March 14 1879-Birthday of physicist Albert Einstein, who developed the theory of relativity.
March 15 1854-Birthday of bacteriologist Emil von Behring, who developed vaccines against diphtheria and tetanus.
March 16 1926-Physicist Robert Goddard made 1st successful launch of a liquid-fuel rocket. Fuel was a mix of gasoline and liquid oxygen.
March 17 1958-Vanguard 1 launched, 1st solar-powered satellite and is the oldest artificial satellite still in orbit.
March 18 1965-Cosmonaut Alexei Leonov became the first person to walk in space.
March 19 1883-Birthday of biochemist Norman Haworth, who synthesized vitamin C, 1st artificial preparation of any vitamin.
March 20 1916-Albert Einstein published "The Foundation of the General Theory of Relativity."
March 21 1788-Birthday of geologist Ignatz Venetz, who proposed the theory that glaciers once covered much of Europe.
March 22 1895-The first motion picture projected onto a screen was shown by inventors Auguste and Louis Lumière.
March 23 1769-Birthday of geologist William Smith, discovered rock strata could be identified by the characteristic fossils they contain.
March 24 1693-Birthday of clock-maker John Harrison, who invented the marine chronometer.
March 25 1655-Astronomer Christiaan Huygens discovered Titan, the largest moon of Saturn.
March 26 1516-Birthday of naturalist Conrad Gesner, one of the founders of modern zoology.
March 27 1845-Birthday of physicist Wilhelm Konrad Roentgen, who discovered X-rays.
March 28 1935-Physicist Robert Goddard made 1st successful launch of a rocket which traveled faster than the speed of sound.
March 29 1974-Mariner 10 made the first of three flybys of Mercury, returning many photos of its surface.
March 30 1842-Physician Crawford Long was the first person to use ether as an anesthetic during surgery.
March 31 1839-Birthday of Nikolai Przewalski, discovered the world's only species of wild horse (Przewalski's horse) in Mongolia.