Scientists detect an enormous halo around the iconic Sombrero Galaxy — Space photo of the week
智利的 570 兆像素暗能量相机捕捉到了帽形草帽星系周围的延伸光晕和布满灰尘的圆盘。
The rings of Uranus are even stranger than we thought
天王星最外层的两个光环惊人地不同，这揭开了形成它们的小卫星和小卫星的神秘面纱
