The colors in this remarkably deep composite image clearly show the star forming galaxies with a blue tint and galaxies with older stellar populations with a yellowish cast.

• 这张显著的深空合成影像里，色彩清晰地显示了正在形成恒星的星系发出蓝色辉光，而拥有年龄较老恒星的星系发出淡黄色辉光。