| 31. | The space observatory used the telescopes to observe and measure ultraviolet radiation from celestial objects.
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| 32. | Collectively, amateur astronomers observe a variety of celestial objects and phenomena sometimes with artificial skyglow.
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| 33. | This is also the case with other celestial objects.
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| 34. | This year there were two movies about a collision between Earth and a celestial object.
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| 35. | But the destroyed instrument would have enabled astronomers to view cooler celestial objects such as planets.
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| 36. | The science of actually measuring positions of celestial objects in the sky is known as astrometry.
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| 37. | However, for objects in space, the celestial objects.
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| 38. | Increasingly, unusual events are interpreted as being impacts of celestial objects even when they are not.
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| 39. | By harnessing the gravitational energy of other celestial objects, the spacecraft can pick up kinetic energy.
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| 40. | It contains an estimated 500 million celestial objects, mostly stars but also galaxies, asteroids and comets.
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