Iridescent Glory of Nearby Planetary Nebula Showcased on Astronomy Day
*Description*:> Artist's Concept Animation highlighting the morphology of the Helix planetary nebula and the creation of planetary knots. Technical facts about this news release: About the Object Object Name: Helix Nebula, NGC 7293 Object Description: Planetary Nebula Position (J2000): R.A. 22h 2...