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Magdalena Koziol, a former postdoc at Yale University, was the victim of scientific sabotage. Now, she is suing the...
Antiretroviral drugs can protect people from becoming infected by HIV. But so-called pre-exposure prophylaxis, or PrEP...
Two studies show that eating a diet low in protein and high in carbohydrates is linked to a longer, healthier life, and...
Considered an icon of conservation science, researchers at World Wildlife Fund (WWF) headquarters in Washington, D.C.,...
The new atlas, which shows the distribution of important trace metals and other substances, is the first product of...
Early in April, the first of a fleet of environmental monitoring satellites will lift off from Europe's spaceport in...
Since 2000, U.S. government health research agencies have spent almost $1 billion on an effort to churn out thousands...
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The Stuff Between Stars
12 August 1998 7:30 pm
At the turn of the century, astronomers wanted to know whether matter existed between the stars and, if so, whether it affected their readings of starlight. Otto Struve, a Russian-American astronomer, discovered that interstellar matter, particularly hydrogen, pervades the galaxy. Today would have been his 101st birthday.
By 1904, interstellar calcium had been detected near some stars. Struve and his co-worker G. P. Gerasimov expanded on that work, finding in 1929 that interstellar calcium existed much more widely. And in 1937, Struve's studies of the wavelengths of radiation revealed the presence of interstellar hydrogen, in ionized form, which was more prevalent than calcium but more difficult to detect. Struve also helped found and plan the second largest reflecting telescope in the world, at the McDonald Observatory on Mount Locke in Texas, which he directed from 1939 to 1950.
[Source: John Dainteth, et al., Eds., Biographical Encyclopedia of Scientists (Institute of Physics Publishing, Bristol and Philadelphia, ed. 2, 1994).]