|Title:||Hubble revisited : new images from the discovery machine|
|Authors:||Daniel Fischer ; Hilmar Duerbeck|
|Publisher:||[S.l.] : Copernicus, 1998|
|ISBN / ISSN / EAN :||387985514|
|Bibliography note:||Includes bibliographical references and index|
|Subjects:||Hubble Space Telescope (Spacecraft) ; Outer space--Exploration|
Garden-variety stars like our sun live undistinguished lives in their galactic neighborhoods, churning out heat and light for billions of years. When these stars reach retirement age, however, as these photos from Hubble gallery show, they become striking and colorful works of art.
As ordinary sunlike stars begin their journey into their twilight years, they swell and glow, shrugging off their gaseous layers until only their small, hot cores remain. The ejected gaseous layers are called planetary nebulae, so named in the eighteenth century because, through small telescopes, these gas clouds had round shapes similar to distant planets such as Uranus or Neptune. Scientists believe that the carbon found on Earth came, in part, from planetary nebulae billions of years ago. (The rest came from supernovae explosions.)
By understanding how other stars live and die, scientists are developing a clearer picture of our Sun's fate. (The sun will enter its twilight years in another five billions years).
Copies in the Library (1)
|Barcode||Call number||Media type||Location||Section||Status|
|006487||QB500.268.F575 1998||Book||ISU Central Campus library||Main collection||Available|