NGC 7662 is a planetary nebula located in the northern constellation Andromeda. It is known as the Blue Snowball Nebula, Snowball Nebula, and Caldwell 22. This nebula was discovered October 6, 1784 by the German-born English astronomer William Herschel.

Nov 1, 2011 · The emission colored in blue shows X-ray emission from a hot plasma cloud in the extended regions of the Orion Nebula, detected by the XMM-Newton satellite. The background image has been recorded...

Nov 18, 2020 · Scientists have uncovered new evidence in the mysterious fluorescent debris of the Blue Ring Nebula that may explain how the strange structure formed. The Blue Ring Nebula harbors a central star,...

Nov 18, 2020 · The Blue Ring Nebula consists of two expanding cones of gas ejected into space by a stellar merger. As the gas cools, it forms hydrogen molecules that collide with particles in interstellar space, causing them to radiate far-ultraviolet light. Invisible to the human eye, it is shown here as blue.

Nov 18, 2020 · The Blue Ring Nebula consists of two expanding cones of gas ejected into space by a stellar merger. As the gas cools, it forms hydrogen molecules that collide with particles in interstellar space, causing them to radiate far-ultraviolet light.

Aug 23, 2021 · The nebula, cataloged as NGC 1999, is a reflection nebula, which shines by reflecting light from a nearby star. Unlike emission nebulae, whose reddish glow comes from excited atoms of gas, reflection nebulae have a bluish cast as their interstellar dust grains preferentially reflect blue starlight.

Nov 18, 2020 · Astronomers believe they have solved the 16-year-old mystery of a star surrounded by an enigmatic ring of ultraviolet light. If they're right, the "Blue Ring Nebula" offers a glimpse of a fleeting phenomenon: a star still reeling from its …

Oct 30, 2023 · This video tours the Crab Nebula, a supernova remnant that lies 6,500 light-years away in the constellation Taurus. Despite this distance from Earth, the Crab Nebula is a relatively close example of what remains after the explosive death of a massive star.

Nov 18, 2020 · Scientists have discovered a rare object called the Blue Ring Nebula, a ring of hydrogen gas with a star at its center. The properties of this system suggest it is the remnant of two stars meeting their ultimate demise: an inward orbital dance that resulted in …

Nov 18, 2020 · The Blue Ring Nebula (Figure 1) was originally discovered in data from NASA’s GALEX spacecraft, a spacecraft which scanned the sky at ultraviolet wavelengths. In its survey of the night sky, GALEX uncovered an intriguing nebula of hydrogen gas rapidly expanding from a star at its center.