Earth and Space Exploration

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Across
  1. 4. A huge loop or arched column of glowing gases over the sunspot
  2. 7. Kepler was a German _____, mathematician and astrologer
  3. 8. An object in space that orbits or circles around a larger celestial body
  4. 9. Dark region seen on the surface of the Sun
  5. 12. Built the _____ model with the Sun at the centre and circular orbits
Down
  1. 1. A column of large amounts of charged gases erupting from the sun
  2. 2. A device used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation
  3. 3. Ptolemy built the geocentric model with Earth at the centre and circular _____
  4. 5. Formed by the interaction between magnetic field brought by the solar wind and Earth's magnetic field
  5. 6. The Sun consists almost entirely of two types of gases, hydrogen and ____
  6. 10. Second largest planet in the Solar System
  7. 11. Second layer that form the sun's atmosphere