The remains of a stellar explosion, 13,000 lightyears away
A supernova remnant displays an odd, lumpy appearance in a new astro image.
Tycho as you’ve never seen it before: the remnant of a supernova 13,000 lightyears away in the constellation Cassiopeia.
The lumpy appearance revealed in this image may be the star’s explosive death itself or possibly an after effect.
One theory is that the lumps are the result of an explosion with multiple ignition points – like millions of dynamite sticks igniting simultaneously.
- Observatories Chandra X-ray Observatory, Sloan Digital Sky Survey
- Release date 17 October 2019
- Image credit X-ray: NASA/CXC/RIKEN & GSFC/T. Sato et al; Optical: DSS
Iain Todd is BBC Sky at Night Magazine's Content Editor. He fell in love with the night sky when he caught his first glimpse of Orion, aged 10.