NASAさんのインスタグラム写真 - (NASAInstagram)「What floats like a butterfly and stings like a bee? 👀 A jellyfish - or in this case, a jellyfish galaxy! These galaxies are named for the strands of gas that "hang" downward from their central disks, a little like a jellyfish's tentacles. @NASAHubble captured this beautiful shot of galaxy JO204, which lies almost 600 million light-years away in the constellation Sextans. Jellyfish galaxies may look delicate, but the processes that form them are anything but. Learn more at the link in our bio about how these gorgeous galaxies are formed under intense pressure! Image description: A spiral galaxy in the center is tilted almost edge-on. The bright core and spiral arms can just be seen from the top. A slight glow surrounds it. Below, strands made of bright blue patches trail down like tentacles. On the left it is just touched by a second, faint and dim galaxy. The background is very dark, with only a few other stars and tiny galaxies visible.」4月30日 3時40分