A light echo is created when a star explodes or erupts, flashing light into surrounding clumps of dust and causing them to shine in an ever-expanding pattern.

The James Webb Space Telescope has captured new imagery of supernova remnant Cassiopeia A. It is 11,000 light-years away in ...

There is a lot of complicated but beautiful physics in understanding how this explosion takes place,” says Purdue University ...

Cassiopeia (pronounced kass ee oh pee' uh) the Queen is one of the first constellations amateur astronomers come to recognize ...

The remnant cloud known as Cassiopeia A illustrates the final stage of a star's life. In images captured by the James Webb ...

NASA's James Webb Space Telescope has captured the infrared glow of an ancient supernova's light echo, revealing ...

"We think every dense, dusty region that we see, and most of the ones we don't see, look like this on the inside — we just ...

This time-lapse video using data from NASA’s James Webb Space Telescope highlights the evolution of one light echo in the ...

Webb's observations of infrared light echoes near Cassiopeia A unveil the complex 3D structure of interstellar dust and gas, ...

NASA's James Webb Space Telescope has observed that infrared glow, revealing fine details resembling the knots and whorls of ...

This timelapse video using data from NASA’s James Webb Space Telescope highlights the evolution of one light echo in the vicinity of the supernova remnant Cassiopeia A.