You may have heard the names Nikola Tesla and Marie Curie before, but do you know what they contributed to science? Here you can learn about some of the most famous scientists in the world.
Hogg, Helen Sawyer (1905-1993) was an American-born Canadian astronomer. She became known for her research on variable stars —stars whose light regularly varies in brightness because of their pulsating atmospheres.
Russell, Henry Norris (1877-1957), a United States astronomer. About 1913 he and Ejnar Hertzsprung independently noted certain relationships between stars that resulted in the Hertzsprung-Russell Diagram, a method of classifying stars.
Bradley, James (1693-1762), an English astronomer, discovered the aberration of starlight that provided the first direct proof that the earth revolves around the sun, and the nutation, or nodding motion, of the earth's axis.
Bell Burnell, Jocelyn (1943-), a Northern Irish astronomer, discovered the first four pulsars, neutron stars that emit pulses of radiation with a high degree of regularity.
Adams, John Couch (1819-1892), was a British astronomer and one of the discoverers of the planet Neptune.
Flamsteed, John (16461719), an English astronomer. Flamsteed was appointed the first astronomer royal, in 1675, and Greenwich Observatory was built for him in 1676.
Taylor, Joseph Hooton, Jr. (1941-) is an American astrophysicist and radio astronomer acclaimed for discovering the first binary pulsar, a system of two collapsed stars that emit tremendous energy as they rotate rapidly around one another.
Fraunhofer, Joseph von (1787-1826), a German optician and physicist. He was the first to make a careful study of the dark lines that appear in the solar spectrum, and these lines (and similar ones from other sources) were named in his honor.
Tsiolkovsky (or Ziolkovsky), Konstantin Eduardovich (1857-1935), a Russian rocket pioneer who is generally regarded as the father of space travel.
Schmidt, Maarten (1929-) is a Dutch astronomer. He identified the starlike objects now known as quasars.
Mitchell, Maria (1818-1889), a United States astronomer. Her birthplace was Nantucket, Massachusetts.
Al-Tusi, Nasir al-Din (1201-1274) was one of the greatest scholars of his time and one of the most influential figures in Islamic intellectual history.
Nicolaus Copernicus was a Polish astronomer who was the first to publish a book setting forth evidence that the earth and the other planets revolve around the sun.
Roemer, Olaus (1644-1710), a Danish astronomer. He was the first to measure the speed of light, using eclipses of Jupiter's moons.
Struve (STROO veh), Otto (1897 - 1963) was a Kussian-born American astronomer who belonged to a family of distinguished scientists that included six astronomers over four generations, he being the last.
Lowell, Percival (1855-1916), a United States astronomer. In 1894 he established the Lowell Observatory at Flagstaff, Arizona.
Woolley, Richard (1906-1986) was the United Kingdom's astronomer royal from 1956 to 1971.
Burnham, Sherburne Wesley (1838-1921), a United States astronomer. His General Catalogue of Double Stars (1906) contains data on 13,665 double stars, more than a thousand of which he discovered.
Langley, Samuel Pierpont (1834-1906), a United States astronomer, physicist, and aviation pioneer.
Newcomb, Simon (1835-1909), a United States astronomer. He calculated the movements of the moon, Mercury, Venus, Mars, Uranus, and Neptune more precisely than had been achieved previously.
Airy, Sir George Biddell (1801-1892), a British astronomer. Airy was astronomer royal from 1835 to 1881.
Lockyer, Sir Joseph Norman (1836-1920), an English astronomer. He was one of the first to study the sun and stars with a spectroscope.
Von Kármán, Theodore (1881-1963) was a Hungarian-born American physicist and engineer who made great contributions to the field of aerodynamics and rocket technology.
Brahe, Tycho (15461601), a Danish astronomer. Tycho achieved fame by writing a book on the brilliant new star that appeared in 1572.
Leverrier, Urbain Jean Joseph (1811-1877), a French astronomer. Leverrier and John Couch Adams independently deduced the existence of the planet Neptune by mathematical calculations.
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