Feb 5, 2026 | Big Idea 4, Big Idea 5, Big Idea 6, Big Idea 9, Black Hole, Galaxy, IAC, Resource, Star
There are different methods for measuring the distances at which heavenly objects are located. Each method is useful for measuring a certain range of distances. In Unit 2 “Distances in the universe. Galaxies”, you can see how distances to the nearest stars in our...
Feb 5, 2026 | Big Idea 1, Big Idea 4, Big Idea 5, Big Idea 6, Big Idea 7, IAC, Resource, Solar System
This activity is part of teaching unit 5, Laws of Planetary Motion. You can find the introduction and teaching guide here. Laws of Planetary Motion – Galilean Satellites This activity is part of teaching unit 5, Laws of Planetary Motion. You can find the introduction...
Feb 5, 2026 | Big Idea 11, Big Idea 2, Big Idea 4, Big Idea 5, Big Idea 8, IAC, Resource, Sun
Understanding solar activity is relevant because the physical phenomena that cause it cannot be studied on Earth, and also because it allows us to predict space weather. Solar storms (coronal mass ejections) carry large amounts of charged particles that form auroras...
Feb 5, 2026 | Big Idea 1, Big Idea 2, Big Idea 4, Big Idea 5, Big Idea 8, IAC, Resource, Sun
The Sun may seem like a static object, resting in the center of the Solar System while the planets orbit around it. But this is not the case. Our star is constantly undergoing processes of change that release large amounts of energy. In fact, the stability of its...
Feb 5, 2026 | Big Idea 4, Big Idea 5, Big Idea 7, Earth, IAC, Resource, Solar System
This activity is part of teaching unit 1, Inner and Outer Planets. You can find the introduction and teaching guide here. Inner planets – Mars This activity is part of teaching unit 1, Inner and Outer Planets. You can find the introduction and teaching guide here....
Feb 5, 2026 | Big Idea 3, Big Idea 4, Big Idea 5, Big Idea 6, Big Idea 9, Galaxy, IAC, Resource
When we look up at the night sky with our eyes, almost all of the bright spots we see twinkling are stars in our galaxy, the Milky Way. If the night is dark, we can also see faint spots of light. These are the galaxies closest to our own, the Andromeda Galaxy and the...
