NASAのインスタグラム(nasa) - 4月25日 03時05分

The Hubble Space Telescope turns 25 years old today! Celebrate with us as we share incredible images from Hubble:

This composite image is a view of the colorful Helix Nebula taken with the Advanced Camera for Surveys aboard NASA's Hubble Space Telescope and the Mosaic II Camera on the 4-meter telescope at Cerro Tololo Inter-American Observatory in Chile. The object is so large that both telescopes were needed to capture a complete view. The Helix is a planetary nebula, the glowing gaseous envelope expelled by a dying, sun-like star. The Helix resembles a simple doughnut as seen from Earth. But looks can be deceiving. New evidence suggests that the Helix consists of two gaseous disks nearly perpendicular to each other.

The Hubble images were taken on November 19, 2002; the Cerro Tololo images on Sept. 17-18, 2003.

Credit: NASA, ESA, C.R. O'Dell (Vanderbilt University), M. Meixner and P. McCullough (STScI)

#Hubble25 #Hubble #Telescope #HST #Space #NASA

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