Kepler's Supernova Remnant • Timelapse with Zooms 6.1.26 • A new video shows changes in Kepler’s Supernova Remnant using data from NASA’s Chandra X-ray Observatory captured over more than two and a half decades with observations taken in 2000, 2004, 2006, 2014, and 2025. In this video, which is the longest-spanning one ever released by Chandra, X-rays (blue) from the telescope have been combined with an optical image (red, green, and blue) from Pan-STARRS. • Expansion Speed: The fastest parts of

What does a supernova look like? This visualization simulates the first 150 milliseconds of a supernova. As the star collapses in on itself, hot gas emits from its core in uneven shock waves. Researchers use computer simulations like this to more accurately understand the events of a dying star. | NASA Ames Research Center