science

Progress MS-30

Progress MS-30 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 MS-30 rather than just read about it. In short: Progress MS-30 (Russian: Прогресс МC-30), Russian production No. 460, identified by NASA as Progress 91, was a Progress spaceflight launched by Roscosmos to resupply the International Space Station (ISS). It is the 183rd flight of a Progress spacecraft.

Key takeaways

Progress MS-30 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 MS-30 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Progress MS-30 from memory before moving on to harder problems.

Reference excerpt

Progress MS-30 (Russian: Прогресс МC-30), Russian production No. 460, identified by NASA as Progress 91, was a Progress spaceflight launched by Roscosmos to resupply the International Space Station (ISS). It is the 183rd flight of a Progress spacecraft.

Mission The Progress MS-30 cargo spacecraft was assembled by Energia in September 2024 and transported by rail from its manufacturing facility in Korolev, Russia to the Baikonur Cosmodrome in Kazakhstan, arriving by the end of the month. Final testing and processing began in mid-January 2025, with propellant and pressurized gas loading completed on 16 February. The loading of food and other supplies into the pressurized compartment followed on 18 February. On 20 February, the spacecraft was attached to the launch vehicle adapter, and the next day, it was enclosed within the payload fairing, which featured an insignia commemorating the 100th birthday of Pavel Belyayev, commander of the Voskhod 2 mission that conducted the world's first spacewalk in 1965. The encapsulated spacecraft was transported by rail to Site 31/6 on 22 February and integrated with the Soyuz-2.1a rocket by 24 February. The rocket was rolled out to the launch pad on 25 February. Progress MS-30 launched on 27 February 2025 at 21:24:27 UTC (28 February 2025 at 02:24:27 AQTT, local time at the launch site). Following a two-day free flight, it docked with the aft port of the ISS's Zvezda module on 1 March at 23:03 UTC.

Manifest Each Progress mission delivers over a thousand kilograms of supplies in its pressurized section, accessible to crewmembers. These supplies include consumables such as food, water, and air, along with equipment for maintenance and scientific research. In its unpressurized section, the spacecraft carries tanks of water, fuel, and gases to replenish the station’s resources and sustain its onboard atmosphere. These resources are transferred to the station through an automated process. For this mission, Progress MS-30 was loaded with a total of 2,599 kg (5,730 lb) of cargo and supplies prior to launch. The cargo manifest includes the following:

Pressurized supplies: 1,179 kg (2,599 lb) Fuel: 950 kg (2,090 lb) Water: 420 kg (930 lb) Nitrogen gas: 50 kg (110 lb) Among the supplies loaded into the pressurized compartment was a new Orlan-MKS spacesuit.

References

See also Uncrewed spaceflights to the International Space Station List of Progress missions

Illustrations

Worked examples

Example 1 — a first encounter with Progress MS-30

Start with the simplest possible case. Write down what Progress MS-30 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 MS-30 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 MS-30 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 MS-30

In research: Progress MS-30 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 MS-30 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 MS-30 is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2025 in Russia, Progress (spacecraft) missions, Spacecraft launched by Soyuz-2 rockets, so understanding it makes those chapters shorter.
In everyday life: Look for Progress MS-30 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Progress MS-30” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Progress MS-30 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Progress MS-30 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 MS-30 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Progress MS-30 in simple terms?

Why does Progress MS-30 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 MS-30?

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 MS-30.