September 3
Cloud Clusters and Comet Siding Spring
This picture includes a comet that was discovered in 2013 by the name of Comet Siding Spring. It is on track to pass very close to Mars within the next six weeks. It will pass so close that it is in fact just over a third the distance that Earth is from the moon. This can cause a problem for the orbiters that are positioned around Mars. Controllers plan to avoid damage to the orbiters from the comet by positioning the orbiters on the other side of Mars from where the comet will pass. The picture also includes two globular star clusters and the Small Magellanic Cloud. The two globular star clusters are 47 Tucanae and NGC 263.
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