(Edition 46, No. 5)
Astronomy is tough--you can't just set up an experiment to run in the laboratory. Instead astrophysicists look at numerous galaxies and try to put them in chronological order. It seems big galaxies are made of smaller ones that have merged together.
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Radio Station Personnel: You can download this file in a non-streaming RealAudio format for broadcast on your station. If you click here you will download the actual file to be saved to your hard drive. When the file downloads (in broadcast quality) make note of where on your hard drive the file is saved; most often it will be saved in a directory called TEMP. You can then call up the file and convert it to your own format.
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