science

Progress M-25M

Progress M-25M 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 Progress M-25M rather than just read about it. In short: Progress M-25M (Russian: Прогресс М-25М), identified by NASA as Progress 57P, is a Progress spacecraft used by Roskosmos to resupply the International Space Station (ISS) during 2014. Progress M-25M was launched on a six-hours rendezvous profile towards the ISS.

Key takeaways

Progress M-25M belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Progress M-25M to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Progress M-25M from memory before moving on to harder problems.

Reference excerpt

Progress M-25M (Russian: Прогресс М-25М), identified by NASA as Progress 57P, is a Progress spacecraft used by Roskosmos to resupply the International Space Station (ISS) during 2014. Progress M-25M was launched on a six-hours rendezvous profile towards the ISS. The 25th Progress-M 11F615A60 spacecraft to be launched, it had the serial number 425 and was built by RKK Energia.

Launch The spacecraft was launched on 29 October 2014 at 07:09:43 UTC from the Baikonur Cosmodrome in Kazakhstan. This was the first time the upgraded Soyuz-2.1a rocket was used for an ISS mission launch.

Docking Traveling about 420 kilometres (260 mi) over the Atlantic Ocean, the unpiloted ISS Progress M-25M Russian cargo ship docked at 13:08 UTC on 29 October 2014 to the Pirs Docking Compartment of the International Space Station, less than six hours after launch.

Cargo The Progress spacecraft carries 2351 kg of cargo and supplies to the International Space Station. The craft is delivering food, fuel and supplies, including 880 kg of propellant; 22 kg of oxygen; 26 kg of air; 420 kg of water; and 1283 kg of spare parts, supplies and experiment hardware for the six members of the Expedition 41 crew currently living and working in space. Progress M-25M is scheduled to remain docked to Pirs for six months.

Illustrations

Worked examples

Example 1 — a first encounter with Progress M-25M

Start with the simplest possible case. Write down what Progress M-25M 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 Progress M-25M 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 Progress M-25M 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 Progress M-25M

In research: Progress M-25M 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 Progress M-25M 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: Progress M-25M is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2014 in Russia, Progress (spacecraft) missions, Russian spacecraft stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Progress M-25M 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 Progress M-25M in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Progress M-25M 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 Progress M-25M out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Progress M-25M in simple terms?

Why does Progress M-25M 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 Progress M-25M?

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 Progress M-25M.