On This Day

Orbiting Solar Observatory 5 launched into earth orbit

The Orbiting Solar Observatory (abbreviated OSO) Program was the name of a series of American space telescopes primarily intended to study the Sun, though they also included important non-solar...

The Orbiting Solar Observatory (abbreviated OSO) Program was the name of a series of American space telescopes primarily intended to study the Sun, though they also included important non-solar experiments. Eight were launched successfully into low Earth orbit by NASA between 1962 and 1975 using Delta rockets. Their primary mission was to observe an 11-year sun spot cycle in UV and X-ray spectra. The initial seven (OSO 1–7) were built by Ball Aerospace, then known as Ball Brothers Research Corporation (BBRC), in Boulder, Colorado. OSO 8 was built by Hughes Space and Communications Company, in Culver City, California.

Historical Significance

The Orbiting Solar Observatory (abbreviated OSO) Program was the name of a series of American space telescopes primarily intended to study the Sun, though they also included important non-solar experiments.

Events Before

  1. Cuba Gooding Jr. is born

    Cuba Gooding Jr., American actor, known for american actor, was born on 1968-01-02. Cuba Mark Gooding Jr. is an American actor.

  2. ABC Radio splits into four networks: Info, Entertainment, Contemporary, and FM

    ABC Radio splits into four networks: Info, Entertainment, Contemporary, and FM

  3. Actress Sharon Tate (24) weds actor and director Roman Polanski (34) in Chelsea, London

    Actress Sharon Tate (24) weds actor and director Roman Polanski (34) in Chelsea, London

  4. Battle of Khe Sanh begins at Khe Sanh Combat Base, one of the most publicized and controversial battles of the Vietnam W

    Battle of Khe Sanh begins at Khe Sanh Combat Base, one of the most publicized and controversial battles of the Vietnam War

  5. Aretha Franklin's 14th studio album "Lady Soul" is released (Billboard Album of the Year, 1968)

    Aretha Franklin's 14th studio album "Lady Soul" is released (Billboard Album of the Year, 1968)

Events After

  1. Charles "Chub" Feeney becomes the President of Major League Baseball's National League

    Charles Stoneham "Chub" Feeney (August 31, 1921 – January 10, 1994) was an Irish-American front office executive in Major League Baseball.

  2. Colonel Chukwuemeka Odumegwu Ojukwu flees Biafra into exile, leaving his deputy, Philip Effiong, to surrender to the Nig

    Colonel Chukwuemeka Odumegwu Ojukwu flees Biafra into exile, leaving his deputy, Philip Effiong, to surrender to the Nigerian Army, effectively ending the Nigerian Civil War

  3. Movie rating system modifies "M" rating to "PG"

    Movie rating system modifies "M" rating to "PG"

  4. Biographical film "Patton" directed by Franklin J. Schaffner and starring George C. Scott premieres in New York (Academy

    Biographical film "Patton" directed by Franklin J. Schaffner and starring George C. Scott premieres in New York (Academy Awards Best Picture 1971)

  5. South Africa cricket team completes a 4-0 series drubbing of Australia in South Africa in the country's last official in

    South Africa cricket team completes a 4-0 series drubbing of Australia in South Africa in the country's last official international cricket Test for 22 years

More from the 1960s

Frequently Asked Questions

What happened on January 22, 1969?
The Orbiting Solar Observatory (abbreviated OSO) Program was the name of a series of American space telescopes primarily intended to study the Sun, though they also included important non-solar experiments. Eight were launched successfully into low Earth orbit by NASA between 1962 and 1975 using Delta rockets. Their primary mission was to observe an 11-year sun spot cycle in UV and X-ray spectra.
Why is Orbiting Solar Observatory 5 launched into earth orbit significant?
The Orbiting Solar Observatory (abbreviated OSO) Program was the name of a series of American space telescopes primarily intended to study the Sun, though they also included important non-solar experiments.

Explore More