Sun Moon Earth

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Across
  1. 2. The measure of the reflectivity of a surface, expressed as the ratio of reflected radiation to incident radiation, crucial for understanding planetary climates.
  2. 4. The study of the movement and deformation of the Earth's crust, which can lead to the formation of geological features such as mountains, valleys, and rilles.
  3. 7. telescope: An optical telescope that uses mirrors to gather and focus light, allowing for larger apertures and clearer images than refractors.
  4. 10. Bright streaks of material that radiate outward from an impact crater, often composed of ejecta.
  5. 11. The number of waves that pass a given point in one second, usually measured in hertz (Hz), which inversely relates to wavelength.
  6. 12. A technique used in astronomy and other fields that combines the light from two or more telescopes to improve resolution and detail of the observed image.
  7. 15. spectrum The range of all types of electromagnetic radiation, which includes visible light, radio waves, X-rays, and gamma rays.
Down
  1. 1. A layer of loose, fragmented material, such as soil and broken rock, that covers solid bedrock on celestial bodies.
  2. 3. Large, dark, basaltic plains on the Moon's surface formed by ancient volcanic eruptions, visible from Earth as smooth, dark areas.
  3. 5. Materials that are expelled from the impact site during the formation of an impact crater, including fragments of rock and dust.
  4. 6. A product or technology developed from another project or research, often leading to new applications and advancements in various fields.
  5. 8. A long, narrow channel or trench found on the surface of the Moon or other celestial bodies, often thought to be formed by volcanic activity or tectonic processes.
  6. 9. The distance between successive peaks of a wave, typically measured in meters, which determines the color of light in the visible spectrum.
  7. 13. telescope: An optical telescope that uses lenses to focus light and magnify distant objects, employing the bending of light through transparent glass.
  8. 14. Crater: A bowl-shaped depression formed on a surface due to the collision of a high-velocity object, such as a meteorite.