Word: spectras
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Working at the Cerro Tololo Inter-American Observatory in Chile last February, Kirshner says his team was taking pictures of the light emitted from supernova Puppis A, a remnant discovered in the 1950s, which has been studied "off and on" ever since. Astronomers usually study the light spectra from all sorts of astronomical bodies to learn about their physical and chemical characteristics, Kirshner says...
Kirshner says another use for supernovae data is as a "yardstick for measuring the geometry of space." As they explode, supernovae are the brightest stars in the universe. By measuring its chemical and physical characteristics from its emitted light spectra, one can check to see if the universe is still expanding and at what rate, he says...
Recent advances in technology have made observation for astronomers like Kirshner more effective. To take pictures of the light spectra of a supernova "it used to be photographic plates, but now we're using CCD's [Charge Couple Devise] that are the same that are in a home video camera." He says the CCD's are extremely sensitive to light and so are of immense use in detecting distant remnants...
Tseng and his family earned more than $1 million from his stock in Spectra Pharmaceutical Services, the company that manufactured his Vitamin Aointment, according to the Boston Globe. Kenyonalso owned stock in the company but gave up hisprofits after a Medical School study found thatprofiting from the stock represented a conflict ofinterest, the Globe reported...
...Turner confirmed, the two spectra recorded at Kitt Peak were virtually identical. This meant that if each were from a different quasar, the two objects would not only have identical chemical properties and temperatures but also would be the same distance (about 5 billion light-years, in this case) away--a highly unlikely coincidence. "If you get matching fingerprints," Turner says, "you could have images from the same quasar...