science

STS-54

STS-54 is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand STS-54 rather than just read about it. In short: STS-54 was a NASA Space Transportation System (Space Shuttle) mission using Space Shuttle Endeavour. This was the third flight for Endeavour, and was launched on January 13, 1993, with Endeavour returning to the Kennedy Space Center on January 19, 1993.

Key takeaways

STS-54 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect STS-54 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of STS-54 from memory before moving on to harder problems.

Reference excerpt

STS-54 was a NASA Space Transportation System (Space Shuttle) mission using Space Shuttle Endeavour. This was the third flight for Endeavour, and was launched on January 13, 1993, with Endeavour returning to the Kennedy Space Center on January 19, 1993.

Crew

Crew seat assignments

Mission highlights

The primary payload was the fifth TDRS satellite, TDRS-F, which was deployed on day one of the mission. It was later successfully transferred to its proper orbit by the Inertial Upper Stage (IUS). Also carried into orbit in the payload bay was a Hitchhiker experiment called the Diffuse X-ray Spectrometer (DXS). This instrument collected data on X-ray radiation from diffuse sources in deep space. Other middeck payloads to test the effects of microgravity included the Commercial General Bioprocessing Apparatus (CGPA) for-life sciences research; the Chromosome and Plant Cell Division in Space Experiment (CHROMEX) to-study plant growth; the Physiological and Anatomical Rodent Experiment (PARE) to examine the skeletal system and the adaptation of bone to space flight; the Space Acceleration Measurement Equipment (SAMS) to measure and record the microgravity acceleration environment of middeck experiments; and the Solid Surface Combustion Experiment (SSCE) to measure the rate of flame spread and temperature of burning filter paper. Also, on day five, mission specialists Mario Runco Jr. and Gregory J. Harbaugh spent nearly 5 hours in the open cargo bay performing a series of space-walking tasks designed to increase NASA's knowledge of working in space. They tested their abilities to move about freely in the cargo bay, climb into foot restraints without using their hands and simulated carrying large objects in the microgravity environment. The EVA completed after 4 hours, 28 minutes. The EVA was a late addition to the mission plan as part of NASA's objectives to hone EVA skills required for hardware assembly anticipating the International Space Station. The mission completed on January 19, 1993, with a landing at Kennedy Space Center.

Illustrations

Worked examples

Example 1 — a first encounter with STS-54

Start with the simplest possible case. Write down what STS-54 claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to STS-54 before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about STS-54 ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of STS-54

In research: STS-54 appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses STS-54 in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: STS-54 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Space Shuttle missions, Spacecraft launched in 1993, so understanding it makes those chapters shorter.
In everyday life: Look for STS-54 outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study STS-54 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what STS-54 means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain STS-54 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is STS-54 in simple terms?

Why does STS-54 matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study STS-54?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on STS-54.