保护地球，探索宇宙，发现文明
A night sky is shown with a bright red band running overhead. Above the red band is a diffuse red glow. A path through a grassy filed is in the foreground with a path going out toward the horizon. Please see the explanation for more detailed information.
夜空中，一条明亮的红色光带从头顶划过。红带上方是漫天的红光。前景是一条穿过草地的小路，小路向地平线延伸。有关更多详细信息，请参阅说明。
A night sky is shown that appears mostly red due to pervasive aurora. In the foreground is covered by watery grasslands. Clouds are visible above the horizon. Thin green aurora are visible toward the top of the frame. In the background one can find the Moon, the LMC, SMC, Venus, a meteor, and the band of our Milky Way galaxy. Please see the explanation for more detailed information.
画面显示的是一个被普遍存在的极光染成红色的夜空。前景是一片被水草覆盖的草原。地平线上方可见云层。画面顶部可以看到稀薄的绿色极光。背景中可以看到月球、大麦哲伦星系、小麦哲伦星系、金星、一颗流星以及银河系的中央盘面。有关更多详细信息，请参阅说明。
See Explanation. Clicking on the video will download the highest resolution version available.
请参阅说明。单击视频将下载可用的最高分辨率版本。
See Explanation. Clicking on the picture will download the highest resolution version available.
请参阅说明。单击图片将下载可用的最高分辨率版本。
See Explanation. Clicking on the picture will download the highest resolution version available.
请参阅说明。单击图片将下载可用的最高分辨率版本。
See Explanation. Clicking on the picture will download the highest resolution version available.
请参阅说明。单击图片将下载可用的最高分辨率版本。
A night sky filled with stars is colored partly purple by an aurora. Also visible are several streaks which are meteors in this image composite. In the foreground is a field and lone tree. Part of the tree slants at the nearly the same angle of the meteor streaks. Please see the explanation for more detailed information.
繁星点点的夜空被极光染成紫色。在这幅合成图中，还可以看到几道流星轨迹。前景是一片田地和一棵孤零零的树。树的一部分倾斜的角度与流星轨迹几乎相同。有关更多详细信息，请参阅说明。
See Explanation. Clicking on the video will download the highest resolution version available.
请参阅说明。单击视频将下载可用的最高分辨率版本。
Purple striped aurora cover a star filled sky. Mountain peaks are visible on the sides, as well as a futuristic looking building on the right side. City lights are visible in the valley down below. Please see the explanation for more detailed information.
紫色条纹的极光覆盖了布满恒星的天空。山峰可以在两侧看到，右边还有一座未来主义风格的建筑。下方山谷中可以看到城市灯光。有关更多详细信息，请参阅说明。
在夜空中可以看到一道巨大的绿色弧线。弧线上方逐渐消失，变成绿色的薄雾，而弧线下方则看不到绿光。背景是布满星星和星座的黑暗天空。前景是白雪和远处的树木。有关更多详细信息，请参阅说明。