STS-42 was a

NASA The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the federal government of the United States, US federal government responsible for the United States ...

Space Shuttle The Space Shuttle is a retired, partially reusable launch system, reusable low Earth orbital spacecraft system operated from 1981 to 2011 by the U.S. National Aeronautics and Space Administration (NASA) as part of the Space Shuttle program. ...

''Discovery'' mission with the

Spacelab Spacelab was a reusable laboratory developed by European Space Agency (ESA) and used on certain spaceflights flown by the Space Shuttle. The laboratory comprised multiple components, including a pressurized module, an unpressurized carrier, ...

module. Liftoff was originally scheduled for 8:45 EST (13:45

UTC Coordinated Universal Time (UTC) is the primary time standard globally used to regulate clocks and time. It establishes a reference for the current time, forming the basis for civil time and time zones. UTC facilitates international communica ...

) on January 22, 1992, but the launch was delayed due to weather constraints. ''Discovery'' successfully lifted off an hour later at 9:52:33 EST (14:52:33 UTC) on her 14th flight. The main goal of the mission was to study the effects of

microgravity Weightlessness is the complete or near-complete absence of the sensation of weight, i.e., zero apparent weight. It is also termed zero g-force, or zero-g (named after the g-force) or, incorrectly, zero gravity. Weight is a measurement of the fo ...

on a variety of

organism An organism is any life, living thing that functions as an individual. Such a definition raises more problems than it solves, not least because the concept of an individual is also difficult. Many criteria, few of them widely accepted, have be ...

s. The shuttle landed at 8:07:17 PST (16:07:17 UTC) on January 30, 1992, on Runway 22,

Edwards Air Force Base Edwards Air Force Base (AFB) is a United States Air Force installation in California. Most of the base sits in Kern County, California, Kern County, but its eastern end is in San Bernardino County, California, San Bernardino County and a souther ...

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

. STS-42 was the first of two flights in 1992 of ''Discovery'', the second of which occurred during

STS-53 STS-53 was a NASA Space Shuttle ''Discovery'' mission in support of the United States Department of Defense (DoD). It was Discovery's 15th flight. The mission was launched on December 2, 1992, from Kennedy Space Center, Florida. This was also ...

, which launched on December 2, 1992. The mission was also the last mission of the Space Shuttle ''Discovery'' to have a seven-member crew until

STS-82 STS-82 was the 22nd flight of the Space Shuttle Space Shuttle Discovery, ''Discovery'' and the 82nd mission of the Space Shuttle program. It was NASA's second mission to service the Hubble Space Telescope, during which ''Discovery's'' crew repai ...

, which was launched on February 11, 1997.

Crew

The astronauts were divided into a red team and a blue team to allow around-the-clock monitoring of experiments. The crew of STS-42 included the first non-American astronauts on a shuttle mission since the ''Challenger'' disaster, Ulf D. Merbold and

Roberta Bondar Roberta Lynn Bondar (; born December 4, 1945) is a Canadian astronaut, neurologist and consultant. She is Canada's first female astronaut and the first neurologist in space. After more than a decade as head of an international space medicine res ...

. Merbold was

West Germany West Germany was the common English name for the Federal Republic of Germany (FRG) from its formation on 23 May 1949 until German reunification, its reunification with East Germany on 3 October 1990. It is sometimes known as the Bonn Republi ...

first astronaut and was making his second flight on the shuttle. Bondar was

Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...

's first female astronaut.

Mary L. Cleave Mary Louise Cleave (February 5, 1947 – November 27, 2023) was an American engineer and NASA astronaut. She also served from 2005 to 2007 as NASA Associate Administrator for the Science Mission Directorate. Early life Cleave was born in Southam ...

was originally selected to fly as Mission Specialist 3 for this mission but withdrew herself for personal reasons. She was replaced by Manley Lanier "Sonny" Carter Jr., who died seven months prior to the launch in a plane crash. David Hilmers was then chosen to replace him.

Backup crew

Crew seat assignments

Mission highlights

STS-42 was launched on January 22, 1992, 9:52:33 a.m. EST. The launch was delayed by one hour due to weather constraints. The launch weight was . ''Discovery'' carried into orbit the International Microgravity Laboratory-1 (IML-1), a pressurized crewed

module, to explore in depth the complex effects of

weightlessness Weightlessness is the complete or near-complete absence of the sensation of weight, i.e., zero apparent weight. It is also termed zero g-force, or zero-g (named after the g-force) or, incorrectly, zero gravity. Weight is a measurement of the fo ...

living organism An organism is any life, living thing that functions as an individual. Such a definition raises more problems than it solves, not least because the concept of an individual is also difficult. Many criteria, few of them widely accepted, have be ...

s and materials processing. The international crew, divided into Red and Blue teams, conducted experiments on the human nervous system's adaptation to low gravity and the effects of

on other life forms such as

shrimp A shrimp (: shrimp (American English, US) or shrimps (British English, UK)) is a crustacean with an elongated body and a primarily Aquatic locomotion, swimming mode of locomotion – typically Decapods belonging to the Caridea or Dendrobranchi ...

egg An egg is an organic vessel grown by an animal to carry a possibly fertilized egg cell (a zygote) and to incubate from it an embryo within the egg until the embryo has become an animal fetus that can survive on its own, at which point the ...

lentil The lentil (''Vicia lens'' or ''Lens culinaris'') is an annual plant, annual legume grown for its Lens (geometry), lens-shaped edible seeds or ''pulses'', also called ''lentils''. It is about tall, and the seeds grow in Legume, pods, usually w ...

seedlings, fruit fly eggs and

bacteria Bacteria (; : bacterium) are ubiquitous, mostly free-living organisms often consisting of one Cell (biology), biological cell. They constitute a large domain (biology), domain of Prokaryote, prokaryotic microorganisms. Typically a few micr ...

. Low gravity materials processing experiments included

crystal growth Crystal growth is a major stage of a crystallization, crystallization process, and consists of the addition of new atoms, ions, or polymer strings into the characteristic arrangement of the crystalline lattice. The growth typically follows an ini ...

from a variety of substances such as

enzyme An enzyme () is a protein that acts as a biological catalyst by accelerating chemical reactions. The molecules upon which enzymes may act are called substrate (chemistry), substrates, and the enzyme converts the substrates into different mol ...

s, mercury,

iodine Iodine is a chemical element; it has symbol I and atomic number 53. The heaviest of the stable halogens, it exists at standard conditions as a semi-lustrous, non-metallic solid that melts to form a deep violet liquid at , and boils to a vi ...

and a

virus A virus is a submicroscopic infectious agent that replicates only inside the living Cell (biology), cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. Viruses are ...

. Other

payload Payload is the object or the entity that is being carried by an aircraft or launch vehicle. Sometimes payload also refers to the carrying capacity of an aircraft or launch vehicle, usually measured in terms of weight. Depending on the nature of t ...

s included 10

Get Away Special Getaway Special was a NASA program that offered interested individuals, or groups, opportunities to fly small experiments aboard the Space Shuttle. Over the 20-year history of the program, over 170 individual missions were flown. The program, whi ...

(GAS) canisters, a number of middeck payloads, two Shuttle Student Involvement Program (SSIP) experiments, and an

Australian Australian(s) may refer to: Australia * Australia, a country * Australians, citizens of the Commonwealth of Australia ** European Australians ** Anglo-Celtic Australians, Australians descended principally from British colonists ** Aboriginal Aus ...

developed ultraviolet telescope ''Endeavour''. Middeck payloads included Gelation of SOLS: Applied Microgravity Research (GOSAMR), Investigations into Polymer Membrane Processing (IPMP) and the Radiation Monitoring Experiment (RME-III). The mission landed on January 30, 1992, 8:07:17 a.m. PST, Runway 22,

, after being extended by a day for continued scientific experimentation. The rollout distance was . The orbiter returned to

Kennedy Space Center The John F. Kennedy Space Center (KSC, originally known as the NASA Launch Operations Center), located on Merritt Island, Florida, is one of the NASA, National Aeronautics and Space Administration's (NASA) ten NASA facilities#List of field c ...

on February 16, 1992. The landing weight was .

Mission insignia

The four stars in the lower blue field and two stars in the upper blue field of the insignia symbolize the flight's numerical designation in the Space Transportation System's mission sequence. The single gold star above the horizon on the right is in honor of

astronaut An astronaut (from the Ancient Greek (), meaning 'star', and (), meaning 'sailor') is a person trained, equipped, and deployed by a List of human spaceflight programs, human spaceflight program to serve as a commander or crew member of a spa ...

Manley Lanier "Sonny" Carter Jr., who was killed in the crash of Atlantic Southeast Airlines Flight 2311 in

Brunswick, Georgia Brunswick ( ) is a city in and the county seat of Glynn County, Georgia, Glynn County in the U.S. state of Georgia (U.S. state), Georgia. As the primary urban and economic center of the lower southeast portion of Georgia, it is the second-larges ...

while on a commercial airplane traveling for NASA. Carter was originally assigned as a mission specialist on STS-42 at the time of his death.

References

External links

NASA mission summary

STS-42 Press Kit

{{Orbital launches in 1992 Space Shuttle missions Edwards Air Force Base Spacecraft launched in 1992