Select the search type
  • Site
  • Web
Search

The natural world. Looking pretty for 3.5b years.

Auroras Animated

Auroras Animated

Author: Hugh Bollinger/Sunday, September 2, 2018/Categories: natural history, video, space science, art and design, adventure

     Composite Visible Light Observations of Auroras, Saturn’s North Pole, 2017 (credit: Hubble Space Telescope)

Over a period of seven months in 2017 the imaging spectrograph on the Hubble Space Telescope captured auroras at Saturn’s north pole region.  The observations taken in ultraviolet light provide the most complete picture of Saturn’s northern aurora so far available.

Auroras occur on Earth when energized particles from the Sun, the Solar wind, hit the upper atmosphere and are trapped by the Earth's magnetic field at the poles. The ionized particles interact with oxygen and nitrogen atoms producing the brilliant, multicolored arouras that can be seen in visible light. On Jupiter, Saturn, Uranus, and Neptune, the energized particles of the solar wind interact with hydrogen atoms and the auroras on those gas giants can only be viewed in ultra-violet wavelengths of the light spectrum as blue.

 

           Saturn's Auroras in Ultraviolet Light, 2017 (credit: Hubble Space Telescope, NASA, ESA)

Whatever the colors of the arouras, they are a natural wonder as shown by a new NASA animation of the Hubble imagery.

 

 

WHB

Print

Number of views (186)/Comments (0)

Please login or register to post comments.

Name:
Email:
Subject:
Message:
x