science

MethaneSAT

MethaneSAT 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 MethaneSAT rather than just read about it. In short: MethaneSAT was an American-New Zealand space mission in 2024–25. It was an Earth observation satellite that monitored and studied global methane emissions in order to combat climate change.

Key takeaways

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

Reference excerpt

MethaneSAT was an American-New Zealand space mission in 2024–25. It was an Earth observation satellite that monitored and studied global methane emissions in order to combat climate change. The spacecraft carried a high performance spectrometer methane sensing system, which allowed high resolution measurements to be taken of global methane emissions from roughly 50 major regions across Earth. It was launched in March 2024 aboard SpaceX's Transporter 10 rideshare mission. The mission was jointly funded and operated by the Environmental Defense Fund (EDF), an American non-governmental organization, and the New Zealand Space Agency. It marked New Zealand's first space science mission. The Bezos Earth Fund, founded by Jeff Bezos, announced a US$100 million grant to EDF to support critical work including completion and launch of MethaneSAT. Sara Mikaloff-Fletcher, a National Institute of Water and Atmospheric Research (NIWA) carbon cycle expert, was the mission's lead scientist. By 20 June 2025, contact with MethaneSAT was lost and by 2 July it was announced that the satellite has likely run out of power, rendering the satellite unrecoverable.

History The MethaneSAT program was started by MethaneSAT, LLC, a wholly owned subsidiary of the Environmental Defense Fund (EDF), with the goal of providing global high resolution data regarding methane emissions from oil and gas facilities. In January 2020, MethaneSAT announced that the spacecraft will be built using the Blue Canyon Technologies X-SAT satellite bus, with the spacecraft's methane sensing spectrometer being provided by Ball Aerospace & Technologies. In November 2019, the New Zealand Space Agency (NZSA) joined the program, committing NZ$26 million to the program. Rocket Lab will build and operate the mission control center for the flight in Auckland, New Zealand. NZSA will also take part in launch operations and may contribute to the scientific payload. Ball Aerospace and Blue Canyon Technologies completed an intensive technology review of their respective contributions to the mission in early 2020. On 13 January 2021, the nonprofit MethaneSAT LLC announced that it had signed a contract with SpaceX to deliver the 350 kg MethaneSAT into orbit aboard a Falcon 9 Block 5 launch vehicle with a launch window opening on 1 October 2022. By November 2022, the launch had been delayed to October 2023 by supply chain issues during the Covid-19 pandemic. The satellite launched as part of Transporter 10 on 4 March 2024. On 1 July 2025, it was announced that contact had been lost with the satellite on 20 June 2025, and that analysis had revealed a loss of power which is likely unrecoverable. According to public broadcaster RNZ, the satellite had cost New Zealand taxpayers a total of NZ$32 million due to an extra $3 million caused by delays and investment in an unused ground Mission Control.

Results Across continental U.S. the aggregate methane loss rate across 12 basins amounts to 1.6% of gas produced, which is 8 times higher than the 0.2% emissions intensity target adopted by the Oil and Gas Climate Initiative.

References

Worked examples

Example 1 — a first encounter with MethaneSAT

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

In research: MethaneSAT 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 MethaneSAT 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: MethaneSAT is common in secondary-school and first-year university syllabi. It links to neighbouring topics Earth observation satellites, Methane, Satellites monitoring GHG emissions, so understanding it makes those chapters shorter.
In everyday life: Look for MethaneSAT 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 MethaneSAT in 20 minutes

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

Frequently asked questions

What is MethaneSAT in simple terms?

MethaneSAT was an American-New Zealand space mission in 2024–25. It was an Earth observation satellite that monitored and studied global methane emissions in order to combat climate change.

Why does MethaneSAT 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 MethaneSAT?

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 MethaneSAT.