Forbidden Universe

Paranormal => Our Universe & Outerspace => Topic started by: AngelOfThyNight on February 26, 2016, 05:05:51 PM

Title: Hubble's Blue Bubble
Post by: AngelOfThyNight on February 26, 2016, 05:05:51 PM

Hubble's Blue Bubble

The distinctive blue bubble appearing to encircle WR 31a is a Wolf–Rayet nebula — an interstellar cloud of dust, hydrogen, helium and other gases. Created when speedy stellar winds interact with the outer layers of hydrogen ejected by Wolf–Rayet stars, these nebulae are frequently ring-shaped or spherical.
Source: Hubble's Blue Bubble (http://www.nasa.gov/image-feature/goddard/2016/hubbles-blue-bubble)