astronomy

Mercury-Redstone 1A

Mercury-Redstone 1A is a astronomy 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 Mercury-Redstone 1A rather than just read about it. In short: Mercury-Redstone 1A (MR-1A) was launched on December 19, 1960 from LC-5 at Cape Canaveral, Florida. The mission objectives of this uncrewed suborbital flight were to qualify the spacecraft for space flight and qualify the system for an upcoming primate suborbital flight.

Key takeaways

Mercury-Redstone 1A belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Mercury-Redstone 1A to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Mercury-Redstone 1A from memory before moving on to harder problems.

Reference excerpt

Mercury-Redstone 1A (MR-1A) was launched on December 19, 1960 from LC-5 at Cape Canaveral, Florida. The mission objectives of this uncrewed suborbital flight were to qualify the spacecraft for space flight and qualify the system for an upcoming primate suborbital flight. The spacecraft tested its instrumentation, posigrade rockets, retrorockets and recovery system. The mission was completely successful. The Mercury capsule reached an altitude of 130 miles (210 km) and a range of 235 miles (378 km). The launch vehicle reached a slightly higher velocity than expected - 4,909 miles per hour (7,900 km/h). The Mercury spacecraft was recovered from the Atlantic Ocean by recovery helicopters about 15 minutes after landing. Mercury Spacecraft #2 was reflown on MR-1A, together with the escape tower from Capsule #8 and the antenna fairing from Capsule #10. Redstone MRLV-3 was used. The flight time was 15 minutes and 45 seconds.

Mercury-Redstone suborbital flight events

Current location Mercury spacecraft #2, used in both the Mercury-Redstone 1 and Mercury-Redstone 1A missions, was displayed at the NASA Ames Exploration Center, Moffett Federal Airfield, near Mountain View, California until 2022 when it was relocated to the Cradle of Aviation Museum in Garden City, NY.

Notes

Illustrations

Worked examples

Example 1 — a first encounter with Mercury-Redstone 1A

Start with the simplest possible case. Write down what Mercury-Redstone 1A claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, 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 Mercury-Redstone 1A 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 Mercury-Redstone 1A 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 Mercury-Redstone 1A

In research: Mercury-Redstone 1A appears in astronomy 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 Mercury-Redstone 1A 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: Mercury-Redstone 1A is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1960 in spaceflight, 1960 in the United States, Project Mercury, so understanding it makes those chapters shorter.
In everyday life: Look for Mercury-Redstone 1A 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 Mercury-Redstone 1A in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Mercury-Redstone 1A 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 Mercury-Redstone 1A out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Mercury-Redstone 1A in simple terms?

Why does Mercury-Redstone 1A matter?

Because it connects several astronomy 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 Mercury-Redstone 1A?

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 Mercury-Redstone 1A.