Article: Astronomer
Space Sciences;      595 words ......universe primarily using telescopes. Astronomers rely on both observations of celestial...formed and work. Although professional astronomers conduct most astronomy research today...cases the identities of these ancient astronomers have long since been lost. At that time...

Article: Struve, OttoWilhelm
A Dictionary of Astronomy;      60 words ......collaborated with his father in the search for double stars, publishing catalogues of his own. He accurately determined the rate of change of precession, and estimated the velocity of the Sun in the Galaxy from the proper motions of nearby stars.

Article: diffuse nebula
A Dictionary of Astronomy;      73 words ...diffuse nebula A cloud of interstellar gas and dust which glows because of the effect on it of ultraviolet radiation from nearby stars. The term H II region is now preferred. The description ‘diffuse’ dates from earlier times when nebulae were...

Article: Scientists witness start of star's explosive death
AP Online;  May 21, 2008 ;     675 words ...In a stroke of cosmic luck, astronomers for the first time witnessed the...exploded into a supernova. On Jan. 9, astronomers used a NASA X-ray satellite to...that by seeing it live in X-rays, astronomers on Earth learned of the supernova...

Article: bright nebula
A Dictionary of Astronomy;      35 words ...bright nebula A luminous cloud of interstellar gas and dust. The term includes emission nebulae , in which the gas glows with its own light, and reflection nebulae , in which the gas and dust reflect light from nearby stars.

Article: Astronomy: 1905 Solar Eclipse
American Decades;      700+ words ......had attracted intense interest among astronomers. The invention of photography and its...sun's outer edge that had long puzzled astronomers. It was not clear whether they were...an event that attracted many European astronomers, including Angelo Secchi, the second...

Article: Star gazing: set in the lunar landscape of Chile's Atacama Desert, this new residential building for astronomers has to contend with harsh extremes of climate.(review of astronomical observatory in Chile)
The Architectural Review;  June 1, 2003 ;     700+ words ......building for an isolated colony of astronomers, in which scientific rationale squares...base sustains a sizeable community of astronomers and scientists, who nee d living quarters...dining hall. The prospect of off-duty astronomers lo

Article: Jan Hendrik Oort
The Columbia Encyclopedia, Sixth Edition;      74 words ......proposed (1950) that comets originate in a cloud of material (the Oort cloud ) orbiting the sun at great distance and that they are occasionally deflected into the inner solar system by gravitational perturbation from the passing of nearby stars.

Article: Jovian moon has thin oxygen atmosphere. (astronomers make observation of Jupiter's moon Ganymede using Hubble Space Telescope's Goddard High Resolution Spectrograph)(Brief Article)
USA Today (Magazine);  June 1, 1997 ;     445 words ...Astronomers using the Hubble Space Telescope have found evidence...particles collide with atmospheric gases. A team of astronomers used the Hubble Telescope's Goddard High Resolution...Spectrograph to make ultraviolet observations of Ganymede. The astronomers were excited when they saw the spectrum had the ...

Article: Astronomers Describe Violent Universe
AP Online;  January 11, 2008 ;     700+ words ...The deeper astronomers gaze into the cosmos, the more they...this week's annual meeting of U.S. astronomers range from blue orphaned baby stars...is changing. Just five years ago, astronomers were gazing at a few thousand galaxies...

Article: Comet Hale-Bopp.
Highlights for Children;  April 1, 1997 ;     694 words ......Mount Everest tumbled toward the Sun. Astronomers call objects like this one comets, and...to spot it. Hale and Bopp These two astronomers did not know each other, and neither...who report it to an observatory. The astronomers checked their reference books to see...

Article: Astronomers' findings portray odd, violent universe: rogue black holes, orphaned baby stars
AP Worldstream;  January 11, 2008 ;     700+ words ...The deeper astronomers gaze into the cosmos, the more they...this week's annual meeting of U.S. astronomers range from blue orphaned baby stars...is changing. Just five years ago, astronomers were gazing at a few thousand galaxies...

Article: nebula
World Encyclopedia;      84 words ......radiation. In contrast, the brightness of reflection nebulae results from the scattering by dust particles of light from nearby stars. Dark nebulae are not luminous: interstellar gas and dust absorb light from background stars, producing apparently dark patches...

Article: Potentially Habitable Planet Found
AP Online;  April 25, 2007 ;     700+ words ...WASHINGTON - For the first time astronomers have discovered a planet outside our...Institution of Washington where a U.S. team of astronomers competed in the hunt for an Earth-like...like our sun. Until a few years ago, astronomers didn't consider these stars as possible...