Search the Kids Internet
Encyclopedia > Timeline of theories and knowledge on the interstellar and intergalactic medium
Article Content
Timeline of knowledge about the interstellar and intergalactic medium
Redirected from Timeline of theories and knowledge on the interstellar and intergalactic medium
Timeline of the interstellar medium and intergalactic medium[?]
- 1848 - Lord Rosse[?] studies M1 and names it the Crab Nebula
- 1864 - William Huggins[?] studies the spectrum of the Orion Nebula and shows that it is a cloud of gas
- 1927 - Ira Bowen[?] explains unidentified spectral lines from space as forbidden transition lines
- 1930 - Robert Trumpler[?] discovers absorption by interstellar dust by comparing the angular sizes and brightnesses of globular clusters
- 1944 - Hendrik van de Hulst[?] predicts the 21 cm hyperfine line of neutral interstellar hydrogen
- 1951 - H.I. Ewen[?] and Edward Purcell[?] observe the 21 cm hyperfine[?] line of neutral interstellar hydrogen
- 1956 - Lyman Spitzer[?] predicts coronal gas[?] around the Milky Way
- 1965 - James Gunn[?] and Bruce Peterson[?] use observations of the relatively low absorption of the blue component of the Lyman-alpha line[?] from 3C9[?] to strongly constrain the density and ionization state of the intergalactic medium
- 1969 - Lewis Snyder[?], David Buhl[?], Ben Zuckerman[?], and Patrick Palmer[?] find interstellar formaldehyde
- 1970 - Arno Penzias[?] and Robert Wilson[?] find interstellar carbon monoxide
- 1970 - George Carruthers[?] observes molecular hydrogen in space
- 1977 - Christopher McKee[?] and Jeremiah Ostriker[?] propose a three component theory of the interstellar medium
All Wikipedia text is available under the terms of the GNU Free Documentation License
|
Search Encyclopedia
|
Featured Article
|