Astronomy
- Graveyards Of Solar Systems Around Dead Suns
Using NASA's Spitzer Space Telescope to study white dwarf stars, astronomers have found the dusty remains of ancient solar systems. White dwarfs are the dense glowing embers of Sunlike stars. While their atmospheres should consist entirely of hydrogen...
- On Hubble's 19th Birthday, A Fountain Of Youth
To commemorate the Hubble Space Telescope's 19 years of historic, trailblazing science, the orbiting telescope has photographed a peculiar system of galaxies known as Arp 194. This interacting group contains several galaxies, along with a "cosmic...
- Carbon Dioxide On Extrasolar Planet
Artist's View of the Extrasolar Planet HD 189733b orbiting the star HD 189733 Just a short while ago, the Hubble Space Telescope took the first visible-light photograph of an extrasolar planet, a planet outside our solar system. Now just recently,...
- Elliptical Galaxy
Elliptical Galaxy ...
- Galaxy
Picture Of The Day(Stars and Galaxies) Galaxy ...
Astronomy
Spitzer telescope detects dust around carbon star
Dust plays an important role in the evolution of galaxies like our Milky Way.
With the help of NASA's Spitzer space telescope researchers have observed dust forming around the carbon star MAG 29, located 280,000 light years away from a smaller galaxy called the Sculptor Dwarf . Stars more massive than the sun end their lives as carbon stars, which in our galaxy are a rich source of dust.
The Sculptor Dwarf contains only 4% of the carbon and other heavy elements in our own galaxy.
The more we can understand the quantity and composition of the dust , the more we can understand how stars and galaxies evolve.
- Graveyards Of Solar Systems Around Dead Suns
Using NASA's Spitzer Space Telescope to study white dwarf stars, astronomers have found the dusty remains of ancient solar systems. White dwarfs are the dense glowing embers of Sunlike stars. While their atmospheres should consist entirely of hydrogen...
- On Hubble's 19th Birthday, A Fountain Of Youth
To commemorate the Hubble Space Telescope's 19 years of historic, trailblazing science, the orbiting telescope has photographed a peculiar system of galaxies known as Arp 194. This interacting group contains several galaxies, along with a "cosmic...
- Carbon Dioxide On Extrasolar Planet
Artist's View of the Extrasolar Planet HD 189733b orbiting the star HD 189733 Just a short while ago, the Hubble Space Telescope took the first visible-light photograph of an extrasolar planet, a planet outside our solar system. Now just recently,...
- Elliptical Galaxy
Elliptical Galaxy ...
- Galaxy
Picture Of The Day(Stars and Galaxies) Galaxy ...