Across
- 2. Gravitational-wave detector in India
- 6. Energy harvested from the sun
- 7. The brightest star in the day
- 8. the Sixth planet in our solar system
Down
- 1. First person to predict the gravitational waves
- 3. a Red planet
- 4. Earth's natural satellite
- 5. Halley, who visits us every 76 years?