| 21. | He plans to install solar panels to generate his own electricity.
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| 22. | One is that the standard theory of solar fusion is wrong.
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| 23. | It is a solar lighting system making its first American appearance.
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| 24. | The solar observatory was launched on Dec . 2.1995.
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| 25. | Atop the solar cells sit 720 cylindrical lenses made of silicone.
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| 26. | Q . What is the smallest planet in the solar system?
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| 27. | Featherweight spacecraft are a perfect fit with solar-sail propulsion.
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| 28. | We are not alone _ we as in the solar system.
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| 29. | She started cooking meals from scratch and built a solar oven.
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| 30. | He said other countries are moving to solar energy much faster.
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