The Economist:The Moon and Mars

Leading-in 哈勃太空望远镜拍摄:ESO 99-4 2006/4/14 ESO 99-4 is a galaxy with a highly peculiar shape. It is probably the remnant of an earlier merger process that has deformed it, leaving the main body largely obscured by dark bands of dust. ESO 99-4 是一个具有高度奇特形状的星系。它可能是早期合并过程的残余,过程使其变形,使得主体很大程度上被黑暗的尘埃掩盖。 图源:ES