Showing posts with label Hubble. Show all posts
Showing posts with label Hubble. Show all posts

Thursday, January 29, 2009

NASA invites public to vote for astronomy-related objects


The National Aeronautic and Space Agency (NASA) has invited the public to vote for one of six candidate astronomy-related objects for the Hubble Telescope to observe in honor of the International Year of Astronomy-2009.

The options, which Hubble has not previously photographed, range from far-flung galaxies to dying stars. Votes can be cast until March 1.

Hubble''s camera will make a high-resolution image revealing new details about the object that receives the most votes. The image will be released during the International Year of Astronomy''s "100 Hours of Astronomy" from April 2 to 5.

Space enthusiasts can cast their vote at: http://YouDecide.Hubblesite.org

Everyone who votes also will be entered into a random drawing to receive one of 100 copies of the Hubble photograph made of the winning celestial body.

NASA has also invited teachers and students to participate in an accompanying Hubble Space Telescope classroom collage activity that integrates art, science and language arts.

Students in participating classes will select their favorite Hubble images and assemble them in a collage. Students in each class also will choose their favorite object from the image-voting contest and write essays about why they made their selections.

The Hubble Space Telescope, launched in 1990, was designed so that astronauts could repair it in space.

The next servicing mission to the telescope is targeted to launch on space shuttle Atlantis on 12th May, 2009. Mission objectives include extending Hubble''s operational life by five years, repairing its out-of-commission instruments and enhancing its scientific power.

Monday, January 19, 2009

Planetary nebula NGC 2818 is nested inside the open star cluster NGC 2818A.


This Hubble image was taken in November 2008 with the Wide Field Planetary Camera 2. The colors in the image represent a range of emissions coming from the clouds of the nebula: red represents nitrogen, green represents hydrogen, and blue represents oxygen

It’s an amazing gorgeous image. Hubble has captured a unique planetary nebula nested inside an open star cluster. Both the cluster (NGC 2818A) and the nebula (NGC 2818) reside over 10,000 light-years away, in the southern constellation Pyxis also called the Compass. This spectacular structure contains the outer layers of a sun-like star that were sent off into interstellar space during the star's final stages of life. These glowing gaseous shrouds were shed by the star after it ran out of fuel to sustain the nuclear reactions in its core. Our own sun will undergo a similar process, but not for another 5 billion years.