Word: spectra
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Astronomers were stumped by the bright, mysterious bodies. What was causing all the radio noise? Even photographs of the stars' spectra-all the wave lengths of emitted light, from red to violet-were no help. A star's spectrum is its individual signature, but none of these five spectra bore any resemblance to the spectrum of any other star...
...light waves appear to slow down in frequency. Bright bands of the spectrum that are normally blue show up as yellow. Yellow bands become red. Stars have never been known to move fast enough to show such large light shifts, so Drs. Greenstein and Schmidt studied the strange spectra just as if they came from another type of swiftly receding object...
...stars in the Milky Way galaxy maintain fair radio silence, but a few of them transmit powerful radio waves that have the astronomers baffled. About half a dozen radio stars have been identified optically, and they prove to emit peculiar assortments of visible light. Astrophysicists are busily studying these spectra, hoping to find some connection between them and the stars' radio loudness...
...planets, the earth's neighbors, than they do about far-distant stars. The reason is that stars shine in their own light, revealing much about themselves to astronomers' spectroscopes. The solar system's planets are visible only in the reflected light of the sun. Their spectra carry little firm information, and the details that can be seen on their surfaces are clear enough to excite but too vague to satisfy human curiosity...
...chemistry William A. Klemperer '50 is a expert on infra-red spectra. He received his Ph.D. from the University of California. Also appointed was Francis G. A. Stone, who is concerned with inorganic chemistry and molecular structure. He is engaged in research with Eugene G. Rochow, professor of Chemistry...