NASAさんのインスタグラム写真 - (NASAInstagram)「This @NASAHubble image shows two galaxies colliding. The larger galaxy on the left is a Seyfert galaxy, which is notable because, despite the immense brightness of its core, radiation from the entire galaxy is observable. Image Description: A pair of merging galaxies. The galaxy on the left has a single, large spiral arm curving out from the core and around to below it, with very visible glowing dust and gas. The right-hand galaxy has a bright core but only a bit of very faint material. A broad curtain of gas connects the two galaxies’ cores and hangs beneath them. A few small stars and galaxies are scattered around the black background.」9月23日 2時00分