Artist’s interpretation of the calcium-rich supernova 2019ehk. Shown in orange is the calcium-rich material created in the explosion. Purple coloring represents gas shedded by the star right before the explosion, which then produced bright X-ray emission when the material collided with the supernova shockwave.
Learn more: Calcium-rich supernova examined with X-rays for first time
Credit: Aaron M. Geller, Northwestern University