Giovanni Battista Donati

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Galaxy clusters like Abell 2744 can act as a natural cosmic lens, magnifying light from more distant, background objects through gravity. NASA's James Webb Space Telescope may be able to detect light from the first stars in the universe if they are gravitationally lensed by such clusters. (astronomy, space exploration, galaxies)

How Fast Is the Universe Expanding?

Aerial view of Florence (Firenze), Italy from the campanile of the Duomo, with the gigantic dome (designed by Filippo Brunelleschi) in the foreground. Unidentifiable tourists are visible on top of the dome, which provide a measure of the building s scale.

25 Famous Paintings to See the Next Time You’re in Florence

Where Did the Moon Come From?

solar eclipse, sun, moon, astronomy, space

How Do You Tell the Difference Between Total, Annular, Solar, and Lunar Eclipses?

Arrangement of the phases of the moon in total eclipse with Blood Moon

9 Celestial Omens

Discover

pg 229Nazi parade features a banner proclaiming, "Death to Marxism."The possibility of a peaceful Germany after World War I was precluded entirely by the terms of the Versailles Treaty and theintransigent hostility of France and England. Stripped of indu

Were the Nazis Socialists?

Young man skeet shooting with airborne shell

6 Unusual Olympic Sports

Binary Computer Code, Binary Code, Internet, Technology, Password, Data

How Does Wi-Fi Work?

Fish. Lionfish. Lion-fish. Turkey fish. Fire-fish. Red lionfish. Pterois volitans. Venomous fin spines. Coral reefs. Underwater. Ocean. Red lionfish swims by seaweed.

10 of the World’s Most Dangerous Fish

winter ice melting salt on the ground, pattern as background

Why Does Salt Melt Ice?

Parsons Weems' Fable, oil on canvas by Grant Wood, 1939; in the Amon Carter Museum of American Art. Catalog entry: The historian Mason Locke Weems, commonly known by his clerical title, Parson Weems, pulls back a curtain to point at 6-year-old George Washington. Bearing an adult head and holding an axe, George gazes blankly up at his father, Augustine, who questions his son while holding a partially cut cherry tree. All of this takes place in front of a 20th-century brick building, which Wood modeled after his own home in Iowa. The scene illustrates the fable of Washington and the cherry tree, which Weems invented in 1806 for the first president's biography. Wood playfully suggests the artifice of the tale here, presenting the story in the manner of a costumed stage play rather than a real event. Amid the action, two Black figures pick cherries in the background, a reference to Washington' slaveholding past and a reminder of of what often gets left out in historical mythmaking.

Did George Washington Really Say, “I Can’t Tell a Lie”?

In this aerial photo, structures are damaged and destroyed October 15, 2005 in Balakot, Pakistan. It is estimated that 90% of the city of Balakot was leveled by the earthquake. The death toll in the 7.6 magnitude earthquake that struck northern Pakistan on October 8, 2005 is believed to be 38,000 with at least 1,300 more dead in Indian Kashmir. SEE CONTENT NOTES.

6 of the World’s Deadliest Natural Disasters

Giovanni Battista Donati: Facts & Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Facts

Born	December 16, 1826 • Pisa • Italy
Died	September 20, 1873 (aged 46) • Florence • Italy
Subjects Of Study	comet • comet tail • spectrum

Peter Naur

Danish astronomer and computer scientist

Giovanni Virginio Schiaparelli

Italian astronomer

Fred L. Whipple

American astronomer

Edmond Halley

British scientist

Maria Kirch

German astronomer

Maria Mitchell

American astronomer

Otto Struve

American astronomer

Karl Schwarzschild

German astronomer

Carolyn Shoemaker

American astronomer

Williamina Paton Stevens Fleming

American astronomer

Wilhelm Olbers

German astronomer

Jean-Baptiste-Gaspard Bochart de Saron

French scientist

Gene Shoemaker

American astrogeologist

David H. Levy

Canadian astronomer and science writer

Marcel Gilles Jozef Minnaert

Belgian astronomer

John Bainbridge

English astronomer

Pierre Mechain

French scientist

Henry Draper

American astronomer

Alexis Bouvard

French astronomer

Wilhelm, Freiherr von Biela

Austrian astronomer

Quiz

View of the Andromeda Galaxy (Messier 31, M31).

Astronomy and Space Quiz

Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.

All About Astronomy

Michael Faraday (L) English physicist and chemist (electromagnetism) and John Frederic Daniell (R) British chemist and meteorologist who invented the Daniell cell.

Faces of Science

Giovanni Battista Donati: Facts & Related Content

Facts

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