science

Progress M-26M

Progress M-26M 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-26M rather than just read about it. In short: Progress M-26M (Russian: Прогресс М-26М), identified by NASA as Progress 58P, is a Progress spacecraft used by Roskosmos to resupply the International Space Station (ISS) during 2015. Progress M-26M was launched on a six-hours rendezvous profile towards the ISS.

Key takeaways

Progress M-26M 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-26M to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Progress M-26M from memory before moving on to harder problems.

Reference excerpt

Progress M-26M (Russian: Прогресс М-26М), identified by NASA as Progress 58P, is a Progress spacecraft used by Roskosmos to resupply the International Space Station (ISS) during 2015. Progress M-26M was launched on a six-hours rendezvous profile towards the ISS. The 26th Progress-M 11F615A60 spacecraft to be launched, it had the serial number 426 and was built by RKK Energia.

Launch The spacecraft was launched on 17 February 2015 at 11:00:17 UTC from the Baikonur Cosmodrome in Kazakhstan.

Docking Progress M-26M docked with the Zvezda service module on 17 February 2015 at 16:57 UTC, less than six hours after launch. In May 2015, Progress was used to reboost the station. First try was automatically aborted by the craft one second into the burn. Russian flight controllers identified a problem in one of its eight thrusters. A second try with seven thrusters succeeded lasting 32 minutes and 3 seconds.

Cargo The Progress spacecraft carried 2370 kg of cargo and supplies to the International Space Station. The craft delivered food, fuel and supplies, including 435 kg of propellant, 50 kg of oxygen, 420 kg of water, and 1465 kg of spare parts, supplies and experiment hardware for the six members of the Expedition 42 crew. Progress M-26M remained docked to Zvezda for six months.

Illustrations

Worked examples

Example 1 — a first encounter with Progress M-26M

Start with the simplest possible case. Write down what Progress M-26M 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-26M 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-26M 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-26M

In research: Progress M-26M 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-26M 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-26M is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2015 in Russia, Progress (spacecraft) missions, Russian spacecraft stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Progress M-26M 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-26M in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Progress M-26M 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-26M out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Progress M-26M in simple terms?

Why does Progress M-26M 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-26M?

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-26M.