Explore This SectionHomeFramework for Heliophysics EducationAboutHelio Big Idea 1.1Helio Big Idea 1.2Helio Big Idea 1.3Helio Big Idea 2.1Helio Big Idea 2.2Helio Big Idea 2.3Helio Big Idea 3.1Helio Big Idea 3.2Helio Big Idea 3.3Helio MissionsHelio TopicsResource DatabaseAbout NASA HEATMoreHighlightsSpace MathEarth’s Seasons and the Sun: A Crossword PuzzleSTEM crossword puzzle for the solstices.Credit: NASA STEM Engagement Each year, Earth makes a complete trip around the Sun! Resources provided about our planet’s journey and important points along its orbit provide clues to solve the crossword puzzle.