science

PIAST

PIAST 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 PIAST rather than just read about it. In short: The PIAST (Polish ImAging SaTelites) constellation is a group of three (PIAST-S1, PIAST-S2, PIAST-M) 6U nanosatellites developed by the Polish Ministry of National Defence and Polish Space Agency for Earth observation purposes that was launched on November 28, 2025 to low Earth orbit. Overview The earth observation satellites are designed to be used to help targeting for JASSM-ER missiles or ATACMS missiles, to help…

Key takeaways

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

Reference excerpt

The PIAST (Polish ImAging SaTelites) constellation is a group of three (PIAST-S1, PIAST-S2, PIAST-M) 6U nanosatellites developed by the Polish Ministry of National Defence and Polish Space Agency for Earth observation purposes that was launched on November 28, 2025 to low Earth orbit.

Overview The earth observation satellites are designed to be used to help targeting for JASSM-ER missiles or ATACMS missiles, to help coordinate forces on the ground, and to allow for better mission management. The constellation is part of the Szafir program, an effort by the Polish government to increase the connectivity and cooperation between scientific institutions and private firms. The satellite program is part of an effort by the Polish government to subsidize the domestic space industry to make it easier for future satellite development. The PIAST satellites are also testing new laser communication devices, in order to develop a military communications system that can't be jammed. In place of traditional radio communication devices, the satellites communicate between each other with laser emitting diodes and receivers. The military expects that once the communication devices are proven to work, that they will begin adopting them both for military applications, but also civilian ones such as at data centers. The constellation is named after the Piast dynasty, the first royal family of Poland. The spacecraft's body was constructed by Creotech on the basis of their HyperSat platform. Additionally, Creotech is using the same ion thrusters they developed for the EagleEye for the PIAST constellation. Scanway was responsible for the construction of two of the three high-resolution Earth Observation telescopes. Each satellite is designed to have a five-meter resolution.

History In October 2021 it was announced private space firms were hired to form a consortium led by the Jaroslaw Dabrowski Military University of Technology and consisting of Creotech instruments, PAN Centre for Space Research, Scanway Space, the Łukasiewicz Research Network – Institute of Aviation, PCO S.A. (a company owned by the Polish Armaments Group). The project cost zł70 million, 40% of which was allocated to Creotech for the manufacturing. When the project was announced it was reported it would take 48 months to develop, and would launch sometime in 2024. In April 2023 it was announced by Creotech that PIAST had completed the Preliminary Design Review and that manufacturing and assembly of the satellites had begun and that launch was now expected to take place in 2025. In June 2024 it was announced Terma A/S was hired to deploy a full Mission Control Center for the satellites' operations. PIAST was launched on board the SpaceX Falcon 9 Transporter-15 on November 28, 2025 alongside the announcement of a new Polish military satellite program MikroSAR which will be developed in consortium with a Finnish company ICEYE. Two-way communication between the Earth and the constellation was established on November 30 and they returned their first image of Earth on December 6, 2025.

Impact The satellites where praised by the Polish Military with defense minister Władysław Kosiniak-Kamysz stating that their launch made Poland “the first [country] in Central and Eastern Europe with a comprehensive military satellite reconnaissance system.” He also stated that PIAST will enable the design and launch of further Polish spy-satellites.

Illustrations

Worked examples

Example 1 — a first encounter with PIAST

Start with the simplest possible case. Write down what PIAST 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 PIAST 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 PIAST 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 PIAST

In research: PIAST 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 PIAST 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: PIAST is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2025 in Poland, 2025 in spaceflight, Military satellites, so understanding it makes those chapters shorter.
In everyday life: Look for PIAST 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 PIAST in 20 minutes

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

Frequently asked questions

What is PIAST in simple terms?

Why does PIAST 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 PIAST?

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 PIAST.