- News Home
17 April 2014 12:48 pm ,
Vol. 344 ,
Officials last week revealed that the U.S. contribution to ITER could cost $3.9 billion by 2034—roughly four times the...
An experimental hepatitis B drug that looked safe in animal trials tragically killed five of 15 patients in 1993. Now,...
Using the two high-quality genomes that exist for Neandertals and Denisovans, researchers find clues to gene activity...
A new report from the Intergovernmental Panel on Climate Change (IPCC) concludes that humanity has done little to slow...
Astronomers have discovered an Earth-sized planet in the habitable zone of a red dwarf—a star cooler than the sun—500...
Three years ago, Jennifer Francis of Rutgers University proposed that a warming Arctic was altering the behavior of the...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
- About Us
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).]