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Astronomy
The scientific study of matter in outer space, especially the positions, dimensi
| Question | Answer |
|---|---|
| What elements make up the Sun? | hydrogen, and then helium |
| Who first measured the speed of light? | Olaf Roemer |
| Which planet is most similar to Earth? | Venus and Mars |
| What is a nova? | A nova is a strong, rapid increase in the brightness of a star |
| What makes the wind? | When hot air rises, cooler air rushes in to fill the space it leaves, thus making wind at the surface. |
| What are the "dog days of summer"? | the brightest star in the night sky |
| What causes seasons? | because of the tilt of the Earth's axis |
| Does the Moon rotate? | yes |
| Where are stars born? | Our galaxy |
| Are aliens or UFOs real? | Aliens are not real |