History of Astronomy

Radio Programs

Interferometry Taking the measure of a giant Monday, February 8, 2016
Moon and Companions Two planets without moons Friday, February 5, 2016
Luna 9 The first soft landing on the Moon Wednesday, February 3, 2016
Caroline’s Cluster A surprising star cluster Thursday, January 14, 2016
Sculptor Looking into a galactic well Thursday, December 10, 2015
General Relativity V Catching ripples in the universe Friday, November 27, 2015
General Relativity Albert Einstein makes history Monday, November 23, 2015
John Stanley Plaskett Taking the measure of the Milky Way Tuesday, November 17, 2015
Leonid Meteors The night the stars fell Monday, November 16, 2015
Morning Trio The first look at a hidden landscape Thursday, October 22, 2015
51 Pegasi A puffy planet gets some attention Monday, October 12, 2015
Uranus at Opposition A good showing for “George’s Star” Sunday, October 11, 2015
Cosmic Background The crackle of the Big Bang Thursday, October 1, 2015
Proxima Centauri Discovering our closest neighbor Thursday, September 10, 2015
First Professor Ready for the first day of class Wednesday, September 2, 2015
Messier 22 “Discovering” an ancient star cluster Monday, August 24, 2015
Stellar Tourism Visiting an observatory by stagecoach Sunday, August 16, 2015
Mariner 4 Getting the first good look at Mars Monday, July 13, 2015
Fred Hoyle Unlocking the secrets of the stars Wednesday, June 24, 2015
False Alarm A hint of an interstellar radio station Wednesday, May 27, 2015
Hercules Handing down pictures of the stars Monday, May 11, 2015
Evening Mercury Measuring a planetary day Sunday, April 26, 2015
Hubble at 25 II The “blunder of the century” Thursday, April 23, 2015
Hubble at 25 Hubble Space Telescope takes flight Wednesday, April 22, 2015
African Astronomy Changing views of southern skies Wednesday, March 25, 2015
Spring Storm Making a mess of Easter Sunday Tuesday, March 24, 2015
Moon and Regulus A royal heart for a royal beast Tuesday, March 3, 2015
Solar Max Taking a look at the busy Sun Saturday, February 14, 2015
Johannes Hartmann Filling the space between the stars Sunday, January 11, 2015
Dwarf Planets A new name for leftover building blocks Monday, January 5, 2015
Quadrantid Meteors The changing landscape of the sky Friday, January 2, 2015
Robert Aitken An astronomer who saw double Wednesday, December 31, 2014
Moon and Spica Eyeballing some changes in the sky Tuesday, December 16, 2014
Moon and Uranus The Moon takes aim at a faint giant Monday, December 1, 2014
More Edwin Hubble Discovering the expanding universe Friday, November 21, 2014
Edwin Hubble A memento of a college basketball star Thursday, November 20, 2014
Great Wall A wall of galaxies across the universe Monday, November 17, 2014
Star Time Setting your watch by the stars Tuesday, October 21, 2014
Orionid Meteors Discovering a meteor shower Sunday, October 19, 2014
Daniel Kirkwood Explaining bands of nothing Friday, September 26, 2014
John Goodricke Solving the mystery of a demon star Wednesday, September 17, 2014
World War II, Part III Science and service in World War II Thursday, September 4, 2014
World War II, Part II European astronomy during the war Wednesday, September 3, 2014
World War II Heading toward World War II Tuesday, September 2, 2014
Paper Black Holes Laying the groundwork for black holes Monday, September 1, 2014
Cat’s Eye Nebula The true nature of a glowing cat’s eye Friday, August 29, 2014
Great Red Spot Staring into the eye of Jupiter Monday, August 18, 2014
Anders Angstrom Scanning the “barcode” of the Sun Wednesday, August 13, 2014
Ranger 7 A successful crash in the Moon Race Thursday, July 31, 2014
Messier Clusters Logging star clusters in Sagittarius Friday, July 25, 2014
‘New’ Stars Keeping an eye on bright “new” stars Friday, July 18, 2014
Impact! Cosmic missiles slam into Jupiter Wednesday, July 16, 2014
Vega A glittering test subject in the summer sky Wednesday, July 9, 2014
Moon and Saturn Names for all the solar system Monday, July 7, 2014
Lyman Spitzer II A bold idea for exploring the universe Thursday, June 26, 2014
Lyman Spitzer Probing matter between the stars Wednesday, June 25, 2014
Clark Telescopes Celebrating some astronomical masterpieces Wednesday, June 4, 2014
Messier 3 Tracking down false comets Wednesday, May 28, 2014
McDonald at 75, V Studying the mysteries of the universe Friday, May 9, 2014
McDonald at 75, IV Probing the mysteries of the stars Thursday, May 8, 2014
McDonald at 75, III Collaboration in the name of science Wednesday, May 7, 2014
McDonald at 75, II Lawsuits, recruitment, and stars Tuesday, May 6, 2014
McDonald at 75 The start of a scientific adventure Monday, May 5, 2014
Mariner 10 at Mercury A first look at a little planet Saturday, March 29, 2014
Yakov Zel’dovich From exploding bombs to exploding stars Saturday, March 8, 2014
Moon and Venus Love and beauty in the dawn sky Monday, February 24, 2014
Southern Slivers Slivers of stars in the southern sky Sunday, February 2, 2014
Getting Started Cooking up a piece of glass Tuesday, December 31, 2013
Annie Jump Cannon II Classifying the stars Wednesday, December 11, 2013
Annie Jump Cannon A rare astronomical opportunity Tuesday, December 10, 2013
Pickering’s Harem Pioneering at 25 cents an hour Monday, December 9, 2013
Pioneer 10 at Jupiter Going eye-to-eye with a giant Tuesday, December 3, 2013
William Herschel III Dangerous nights at the telescope Saturday, November 16, 2013
William Herschel II Making up for lost time Friday, November 15, 2013
William Herschel A musical intro for a noted astronomer Thursday, November 14, 2013
A New Start An observatory gets a new start Tuesday, September 3, 2013
Changing Directions A change of direction for McDonald Observatory Monday, September 2, 2013
Bernard Lovell Pioneering a new way to see the universe Thursday, August 29, 2013
Spitzer Space Telescope Taking a good look at an exoplanet Friday, August 23, 2013
Delphinus Sneaking into astronomical history Monday, July 8, 2013
Maximilian Wolf Snapping pictures of the night sky Saturday, June 22, 2013
Nicolas Louis de Lacaille Mapping southern skies Wednesday, May 15, 2013
Moon and Regulus A special day for astronomy Saturday, April 20, 2013
Argo Navis Sailing across the southern sky Monday, April 1, 2013
Moon and Jupiter A large, close-knit planetary family Sunday, February 17, 2013
Quasars II Lighting up a distant galaxy Wednesday, February 6, 2013
Quasars The long-range secret of odd “stars” Tuesday, February 5, 2013
Missed Opportunity Missing a “stellar” opportunity Monday, January 28, 2013
More Mariner 2 Destroying a “second Earth” Friday, December 14, 2012
Mariner 2 Pioneering a path to another world Thursday, December 13, 2012
‘Titanic’ Discoveries A big moon keeps its secrets Monday, November 19, 2012
Uranus at Opposition Overlooking a giant planet Friday, September 28, 2012
Moon and Antares Flirting with the stars Thursday, September 20, 2012
BL Lacertae A star that’s more than a star Friday, September 14, 2012
Eclipse Watcher Risking life and limb for a solar eclipse Sunday, August 19, 2012
Cloudy Skies A cruel twist of nature Saturday, August 18, 2012
Tuttle Comets War, embezzlement, and comets Tuesday, July 17, 2012
Swift Comets From hardware-store owner to cosmic celebrity Monday, July 16, 2012
H-R Diagram Drawing the lives of the stars Saturday, July 7, 2012
The Sombrero Looking beneath the brim of a galaxy Monday, July 2, 2012
Leo Minor Stars without much flash Saturday, June 23, 2012
Johann Galle Taking note of a new planet Saturday, June 9, 2012
EUVE Opening a new “window” on the universe Thursday, June 7, 2012
Venus Transit Measuring out a solar-system ruler Monday, June 4, 2012
Clockwork Eclipses Ticking off the hours until a solar eclipse Thursday, May 17, 2012
Luna See Firing a laser at the Moon Wednesday, May 9, 2012
General Relativity Albert Einstein “warps” the universe Monday, May 7, 2012
Moon, Mars, and Regulus Uncovering the secrets of a star Monday, April 30, 2012
Centaurus A A galaxy with a loud voice Sunday, April 29, 2012
Ranger 4 Slamming into the far side of the Moon Thursday, April 26, 2012
Balloon Ride Taking a balloon ride for science Saturday, April 7, 2012
Rings of Uranus A dark discovery for a giant planet Thursday, March 8, 2012
White Dwarfs Squeezing the heart of a dead star Wednesday, February 1, 2012
Sirius B A close companion for a bright star Tuesday, January 31, 2012
Harvey Nininger II Buying space rocks for a dollar a pound Tuesday, January 17, 2012
Harvey Nininger A burning passion for space rocks Monday, January 16, 2012
Pulsar Planets Planets around a dead star Sunday, January 8, 2012
The New Year Bringing the calendar to heel Sunday, January 1, 2012
The Reindeer An extra reindeer for Santa’s sleigh Saturday, December 24, 2011
Jean-Louis Pons The champion of all comet hunters Friday, December 23, 2011
Cosmic Nobel Discovering a mysterious cosmic energy Sunday, December 11, 2011
Fire and Water Fire and water in the night sky Saturday, December 3, 2011
Rarae Aves Rare birds in southern skies Monday, November 28, 2011
Mikhail Lomonosov The man who discovered an atmosphere Saturday, November 19, 2011
Back in the Game? Staging a return to deep space Thursday, November 3, 2011
Great Comet of 1811, II War, peace, and fine wines Wednesday, November 2, 2011
Great Comet of 1811 A great show by a “dirty snowball” Tuesday, November 1, 2011
Saturn and Spica Eyeballing some changes in the sky Sunday, October 30, 2011
Galileo at Gaspra A first encounter with a space rock Saturday, October 29, 2011
Robert Trumpler Filling the space between the stars Sunday, October 2, 2011
Thomas Wright Giving birth to a galaxy Wednesday, September 21, 2011
Yerkes Telescope A new career for a pioneering telescope Thursday, August 18, 2011
Glass Astronomy Astronomy-under-glass Tuesday, August 16, 2011
Star Organizer Getting the stars organized Monday, August 15, 2011
Star Travels A fanciful design for a starship Sunday, July 24, 2011
Van Biesbroeck's Star Hunting up a faint cosmic bulb Saturday, July 16, 2011
John A. Wheeler A new name for invisible stars Saturday, July 9, 2011
Moon and Jupiter Changing concepts of a giant world Friday, June 24, 2011
Luis Alvarez Subatomic particles and dead dinosaurs Monday, June 13, 2011
Transit of 1761, Part IV A ring of fire around a planet Thursday, June 9, 2011
Transit of 1761, Part III Ducking cannonfire in the name of science Wednesday, June 8, 2011
Transit of 1761, Part II Dodging cannonfire in the name of science Tuesday, June 7, 2011
Transit of 1761 Spreading out to watch a little black dot Monday, June 6, 2011
Transit of Venus One year away from a rare event Sunday, June 5, 2011
Irene Discovering a "peaceful" planetoid Thursday, May 19, 2011
More Moon and Venus Naming ancient volcanic basins Wednesday, March 30, 2011
Moon and Venus Searching for an elusive moon Tuesday, March 29, 2011
Urbain Leverrier A "calculated" planetary discovery Friday, March 11, 2011
Halley's Armada An armada takes aim at Halley's Comet Saturday, March 5, 2011
Clockwork Skies Plotting the motions of the sky Wednesday, February 16, 2011
Johannes Hevelius Filling in some gaps in the sky Saturday, January 29, 2011
Plurality of Worlds Changing ideas about the universe Monday, January 17, 2011
The Camel Leopard Spotting a spotted constellation Tuesday, January 4, 2011
Quadrantid Meteors Tracers of a bygone constellation Sunday, January 2, 2011

Featured Images

Luna 9, February 1966
First Landing Wednesday, February 3, 2016
Telescopes in the cargo bay of space shuttle Columbia, December 1995
Space (Shuttle) Telescope Tuesday, December 8, 2015
Artist's concept of the star system 51 Pegasi, featuring a giant planet
The First Monday, October 12, 2015
First Eyes on Mars Monday, July 13, 2015
Artist's concept of Solar Max in orbit
Sun Watcher Saturday, February 14, 2015
Double Dribble Thursday, November 20, 2014
Postcard of the historic Elgin Watch Company Observatory in Illinois
Star Time Saturday, October 25, 2014
Otto Struve, first director of McDonald Observatory
First Director Thursday, May 8, 2014
Construction of McDonald Observatory's 82-inch telescope, ca. 1934
Celebrating Tuesday, May 6, 2014
Participants in the McDonald Observatory dedication, May 5, 1939
Getting Started Monday, May 5, 2014
Autographs from the dedication of McDonald Observatory
Who's Who Wednesday, May 7, 2014
An early view of the primary mirror of McDonald Observatory's first telescope
Seeing the Light Tuesday, December 31, 2013
Annie Jump Cannon
Astronomical Pioneer Tuesday, December 10, 2013
Female "computers" at Harvard College Observatory
Data Processing Center Monday, December 9, 2013
The life and times of William Herschel
Stellar Musician Thursday, November 14, 2013
Artist's concept of Mariner 2 flying past Venus, December 14, 1962
First Encounter Thursday, December 13, 2012
Solar eclipse of August 19, 1887, from near Berlin
Fire in the Sky Saturday, August 18, 2012
False-color view of Comet Swift-Tuttle, 1992
Swift Comet Monday, July 16, 2012
H-R Diagram
Stellar Plot Saturday, July 7, 2012
Victor Hess prepares to ascend in a balloon to study cosmic rays, 1912
Radiation Hunter Saturday, April 7, 2012
Yerkes Observatory in Wisconsin is home to the world's largest refractor
Still Going Thursday, August 18, 2011
Illustration showing the Great Comet of 1861
Great Comet Thursday, June 30, 2011
Venus's path across the Sun during the transit of 1761
Bright Passage Monday, June 6, 2011
Halley's Comet streaks across the sky
Look! It's Halley's Comet! Tuesday, May 11, 2010
Martian 'Canali' Sunday, March 14, 2010


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