"Captivating Time-Lapse Reveals Supernova's Expanding Bubble in Space"

Astronomers have created a time-lapse video using 20 years of Hubble Space Telescope data, showcasing the remnants of a supernova explosion that occurred around 20,000 years ago. The video focuses on a small section of the Cygnus Loop, a nebula formed from the remains of a star that exploded in a supernova. The time-lapse reveals density differences in the shock wave associated with the explosion and showcases gossamer filaments resembling twisted ribbons of light. The filaments have remained unchanged over the past 20 years, despite the shock wave's velocity being fast enough to travel from Earth to the moon in less than half an hour.