A large irregularly shaped object is shown that is mostly brown and shows many craters. Please see the explanation for more detailed information.
图中显示了一个形状不规则的大型物体，主要呈棕色，表面有许多陨石坑。有关更多详细信息，请参阅说明。
Part of a large rock on Mars is shown being mostly orange. On the rock are several irregular light-colored areas surrounded by a dark border. The spots are only millimeters across but might be a remnant biosignature of ancient Martian life. Please see the explanation for more detailed information.
图中火星上一块大型岩石的一部分，大部分呈橙色。岩石上有几个不规则的浅色区域，周围环绕着深色边框。这些斑点直径只有几毫米，但可能是古代火星生命残留的生物特征。有关更多详细信息，请参阅说明。
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。
What’s Up for September? Saturn puts on a spectacular show, a sunrise conjunction shines bright, and we ring in the autumnal equinox.
九月的天空会发生什么？土星上演壮观天象，日出近合璀璨夺目，而秋分也随之到来。
What’s Up for August? Jupiter and Venus have a morning meetup, we check out this year’s Perseid meteor shower, and peek into the future of our own Sun.
8月的天空会发生什么？木星与金星上演清晨相会，观赏年度英仙座流星雨，并一窥我们太阳的未来。
A view of the surface of Mars shows an unusual feature — a seemingly square crater bounded on three sides. Please see the explanation for more detailed information.
火星表面的景象展现出一个不寻常的特征——一个三面环绕、看似方形的撞击坑。有关更多详细信息，请参阅说明。
