science

IM-3

IM-3 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 IM-3 rather than just read about it. In short: IM-3 is a robotic spaceflight mission planned by Intuitive Machines for launch in the second half of 2026 for NASA's CLPS program, using a Nova-C lunar lander. It will deliver payloads to the lunar swirl in the Reiner Gamma region.

Key takeaways

IM-3 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect IM-3 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of IM-3 from memory before moving on to harder problems.

Reference excerpt

IM-3 is a robotic spaceflight mission planned by Intuitive Machines for launch in the second half of 2026 for NASA's CLPS program, using a Nova-C lunar lander. It will deliver payloads to the lunar swirl in the Reiner Gamma region.

Background

NASA selected a Nova-C mission for CLPS task order CP-11. In August 2021, Intuitive Machines selected SpaceX to launch its third lunar mission, IM-3. As of 7 January 2026, the launch of IM-3 is expected to take place in second half 2026. The lander will conduct experiments investigating the properties of the unexpected magnetic field that has been detected in the vicinity of the Reiner Gamma swirl.

Mission hardware

The Reiner Gamma landing site was announced for the first PRISM opportunity and the JHU Applied Physics Laboratory's Lunar Vertex payload was selected to conduct a detailed scientific analysis of the surface and surface environment. David Blewett (APL) is the principal investigator and leads the science team. Lunar Vertex includes payload elements on the Nova-C lander (APL magnetometer, SwRI plasma spectrometer, and Redwire camera arrays) and on a Lunar Outpost rover (APL magnetometer and Canadensys microscopic imager). APL also provided overall management, systems engineer, SMA, and rover integration and testing.

Additional payloads In addition to Lunar Vertex, IM-3 payloads include the Cooperative Autonomous Distributed Robotic Explorers (CADRE) rovers, ESA's MoonLIGHT Pointing Actuator (MPAc), KASI's Lunar Space Environment Monitor (LUSEM), and AstroForge's Vestri. The MoonLIGHT MPAc hardware was qualified for flight and has been in storage since December 2023. LUSEM was similarly qualified and delivered in 2023.. Vestri is a launch ride-share payload that will not be directly integrated with the Trinity lander. The CADRE rovers were delivered to Intuitive Machines in 2025. In December 2025, ASA funded organisation Lunaria One was approved to add the Australian Lunar Experiment Promoting Horticulture (ALEPH-1) payload which will test plant growth and survival in the lunar environment. On August 4, 2026, NASA confirmed that IM-3 would launch with a total of 12 payloads. Of these, 5 are NASA payloads, 6 are commercial payloads, with one payload coming from the ISA.

Lunar data network In 2024 the Intuitive Machines chief executive indicated that in addition to the lander, the IM-3 mission might deliver a data-relay satellite to lunar orbit. NASA asserts, "Lunar relays will play an essential role in NASA’s Artemis campaign to establish a long-term presence on the Moon." Additional reporting in 2025 indicated this work will be performed under a Near Space Network Services contract that NASA had previously awarded to Intuitive Machines. In a 2026 presentation researchers described plans to launch the Altus-1 / LDN-1 Lunar Data Network (LDN) satellite on IM-3. The eventual LDN would consist of five lunar satellites to deliver Lunar Communications Relay and Navigation Systems (LCRNS) services for NASA. In August 2026 NASA delivered to IM a NavCube3-mini navigation receiver for use on Altus-1.

Mission events

Prior to launch As of January 2026, the mission is scheduled for launch in the second half of 2026.

See also Commercial Lunar Payload Services IM-1 IM-2 Peregrine Mission One List of missions to the Moon Chandrayaan-3 Luna 25 Smart Lander for Investigating Moon

References

External links Intuitive Machines

Illustrations

Worked examples

Example 1 — a first encounter with IM-3

Start with the simplest possible case. Write down what IM-3 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 IM-3 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 IM-3 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 IM-3

In research: IM-3 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 IM-3 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: IM-3 is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2026 in Florida, 2026 in spaceflight, Artemis support missions, so understanding it makes those chapters shorter.
In everyday life: Look for IM-3 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 IM-3 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what IM-3 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 IM-3 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is IM-3 in simple terms?

Why does IM-3 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 IM-3?

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 IM-3.