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Explanation: The shockwave from a 20,000 year-old supernova in the constellation of Cygnus supernova explosion is still expanding into interstellar space. The collision of this fast moving wall of gas with a stationary cloud has heated it causing it to glow in visible as well as high energy radiation, producing the nebula known as the Cygnus Loop (NGC 6960/95). The nebula is located about 2500 light-years away. The colors used here indicate emission from different kinds of atoms excited by the shock: oxygen-blue, sulfur-red, and hydrogen-green. This picture was taken with the Wide Field and Planetary Camera 2 on board the Hubble Space Telescope.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: nebula - NGC 6960 - supernova - supernova remnant
Publications with words: nebula - NGC 6960 - supernova - supernova remnant
See also:
- APOD: 2026 January 7 Á Simeis 147: The Spaghetti Nebula Supernova Remnant
- APOD: 2025 December 29 Á M1: The Crab Nebula
- APOD: 2025 November 5 Á Spiral Galaxy NGC 3370 from Hubble
- APOD: 2025 October 1 Á NGC 6960: The Witchs Broom Nebula
- APOD: 2025 July 31 Á Supernova 2025rbs in NGC 7331
- APOD: 2025 June 9 Á Between Scylla and Charybdis: A Double Cosmic Discovery
- APOD: 2025 March 18 Á LDN 1235: The Shark Nebula