NASAさんのインスタグラム写真 - (NASAInstagram)「Celebrating #WorldOceansMonth is a no-brainer, just like this jellyfish (galaxy)! Jellyfish galaxies get their name from their resemblance to the aquatic creature. In this @NASAHubble image of JO206, the long tendrils of star formation trail the disk of the galaxy, resembling jellyfish tentacles. The tendrils of jellyfish galaxies are formed by the interaction between galaxies and the intra-cluster medium, superheated plasma that permeates galaxy clusters. As galaxies move through galaxy clusters, they ram into this superhot plasma, which strips gas from the galaxies and draws it into the long tendrils of star formation. Learn more at the link in our bio! Image Description: A spiral galaxy that is tilted partially toward us. Its inner disk is bright and colorful, with bluish and reddish spots of star formation throughout the arms. An outer disk of pale, dim dust surrounds it. It has many arms, which are being pulled away from the disk, down and to the right. They stretch into long, faint trails that cross the image. The background is dark and mostly empty, with three bright stars.」6月10日 1時32分