土星环消失之谜

土星环消失之谜

The planet Saturn is shown many times down the composite image. The top image was taken in 2020 and shows Saturn’s rings very clearly, whereas the bottom image was taken in 2025 and the rings are only visible as a dark line across the planet. The six images show the progression year by year. Please see the explanation for more detailed information.
土星在合成图像中多次出现。上方图像拍摄于2020年,清晰地展现了土星环;下方图像拍摄于2025年,土星环仅以一条暗线的形式横跨整个土星。这六幅图像展现了土星环逐年变化的轨迹。有关更多详细信息,请参阅说明。

韦伯影像: 恒星WR 140的尘埃壳

韦伯影像: 恒星WR 140的尘埃壳

A bright spot at the center is surrounded by many concentric rings. The rings are nearly — but not exactly — circular in appearance. Please see the explanation for more detailed information.
中心的亮点被许多同心环包围。这些环的外观几乎是圆形的,但并不完全是。 有关更多详细信息,请参阅说明。