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PLANETS Units Have Landed – Free NASA-Funded Out-of-School Time Resources

PLANETS Units Have Landed – Free NASA-Funded Out-of-School Time Resources

  • NASA has launched three free out-of-school time units, PLANETS, which provide hands-on planetary science and engineering experiences for grades 3-8.
  • The units are designed to be accessible and engaging for all learners, including those with different physical abilities and languages, and include comprehensive educator guides, videos, and resources.
  • The three units – Space Hazards, Water in Extreme Environments, and Remote Sensing – offer complementary engineering and science pathways that can be taught on their own or together.
  • PLANETS has been tested extensively in out-of-school time programs across the country and revised based on feedback to ensure the needs of all learners are met.
  • The units are available at no cost on the website planets-stem.org, providing a practical guide for out-of-school time educators and empowering every learner to see themselves as scientists and engineers.

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PLANETS Units Have Landed – Free NASA-Funded Out-of-School Time Resources

An out of school time educator holds a measuring tape as an elementary aged girl drops a weight to test the space craft shield her group created. Her group members, two boys and one girl, watch as she drops the weight.
Constructing a three dimensional topographic map from the Remote Sensing Science Pathway.

The NASA Science Activation program’s PLANETS (Planetary Learning that Advances the Nexus of Engineering, Technology, and Science) project, led by Northern Arizona University (NAU), is pleased to announce the official launch of three free out-of-school (OST) time units that give all learners in grades 3-5 and 6-8 the chance to do real planetary science and engineering. These units are supported by comprehensive educator guides, videos, and resources.

These three units – Space Hazards, Water in Extreme Environments, and Remote Sensing – have complementary engineering and science pathways that can be taught on their own or together. Subject matter experts in planetary science from the USGS Astrogeology Science Center were involved in every part of developing the activities, working with STEM (Science, Technology, Engineering, & Mathematics) education experts from Northern Arizona University Center for STEM Teaching & Learning, the Boston Museum of Science, and WestEd to ensure the activities are educational, engaging, and accurate.

PLANETS intentionally designed the units to benefit all learners. The curriculum reflects research-based pedagogical strategies, including those for multilingual learners, Indigenous learners, and learners with differing physical abilities. The units have been tested extensively in out-of-school time programs across the country and revised based on their feedback to ensure the needs of all learners are met. PLANETS provides a practical guide for out-of-school time educators with useful advice to effectively teach all students. All units also include educator background on the subject matter, as well as videos, and many useful tips and links to relevant NASA projects and resources.

“PLANETS is one of the most thoughtfully designed STEM resources I’ve used in an out-of-school setting. The hands-on activities are engaging, accessible, and grounded in real-world challenges that spark curiosity in every learner. What sets it apart is the intentional support for diverse learners and the clear, practical guidance for facilitators—making it truly turnkey for OST educators at any experience level. If you’re looking to build STEM identity, teamwork, and creative problem-solving in your program, PLANETS is a must.” ~ Kara Branch, CEO & Founder, Black Girls Do Engineer

In the Space Hazards unit, intended for learners in grades 3-5, students play a card game to learn about how to protect against the different hazards that people face on Earth and that astronauts and robotic probes face in space. The engineering pathway for this unit presents students with a challenge: design a space glove that will keep astronauts safe while still allowing them to do their work.

The Water in Extreme Environments unit is designed for grades 6-8. In the science pathway, students use planet “water cards” to learn where there is the most water in our solar system (hint: it’s not Earth!). The engineering pathway introduces learners to the scarcity of fresh water, both in extreme environments on Earth and for astronauts in space. Students design a filtration system to purify water for reuse.

The engineering pathway for the Remote sensing unit, also designed for grades 6-8, puts students into the shoes of NASA spacecraft engineers, designing remote sensing devices to learn about the surface of planets, like Mars. The science pathway then uses real NASA remote sensing data from Mars landing site candidates to choose the best place to land a rover on Mars.

All PLANETS materials are available at no cost on the website: planets-stem.org. Check them out and empower every learner to see themselves as scientists and engineers.

PLANETS is supported by NASA under cooperative agreement award number NNX16AC53 and is part of NASA’s Science Activation Portfolio. Learn more about how Science Activation connects NASA science experts, real content, and experiences with community leaders to do science in ways that activate minds and promote deeper understanding of our world and beyond: https://science.nasa.gov/learn/about-science-activation/.

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Last Updated

Nov 26, 2025

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NASA Science Editorial Team

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Q. What is the PLANETS program?
A. The PLANETS (Planetary Learning that Advances the Nexus of Engineering, Technology, and Science) program is a NASA-funded out-of-school time resource that provides free units for grades 3-5 and 6-8 to learn about planetary science and engineering.

Q. What are the three units available in the PLANETS program?
A. The three units available in the PLANETS program are Space Hazards, Water in Extreme Environments, and Remote Sensing.

Q. Who developed the activities for the PLANETS program?
A. Subject matter experts in planetary science from the USGS Astrogeology Science Center worked with STEM education experts from Northern Arizona University, Boston Museum of Science, and WestEd to develop the activities.

Q. What is the goal of the PLANETS program?
A. The goal of the PLANETS program is to provide educational, engaging, and accurate learning experiences for all learners, including multilingual learners, Indigenous learners, and learners with differing physical abilities.

Q. How were the units tested?
A. The units were extensively tested in out-of-school time programs across the country and revised based on their feedback to ensure the needs of all learners are met.

Q. What resources are available for educators using the PLANETS program?
A. Educators can access comprehensive educator guides, videos, and resources, as well as practical guidance for effectively teaching all students.

Q. Who supports the PLANETS program?
A. The PLANETS program is supported by NASA under cooperative agreement award number NNX16AC53.

Q. What is the purpose of the Science Activation Portfolio?
A. The Science Activation Portfolio connects NASA science experts, real content, and experiences with community leaders to do science in ways that activate minds and promote deeper understanding of our world and beyond.

Q. Where can educators access the PLANETS program resources?
A. Educators can access the PLANETS program resources at no cost on the website: planets-stem.org.