According to reports, NASA's Cassini spacecraft has come up with a strange view. The spacecraft was able to do as northern hemisphere of Saturn is moving into its summer along with enhanced lighting. Cassini spacecraft, which is exploring Saturn, captured an image that reveals some fascinating red marks across the icy surface of the planet's moon Tethys.

According to NASA, mysterious arc-shaped, reddish streaks could be seen on the surface of Saturn's icy moon Tethys. As per reports, the red marks were seen in new and color-enhanced images that were joined together from Cassini that has been orbiting Saturn for nearly 11 years.

In April 2015, the original images were captured and they revealed a part of Tethys, which is one of Saturn's 53 named moons. According to the space agency, "As the Saturn system moved into its northern hemisphere summer over the past few years, northern latitudes have become increasingly well illuminated. As a result, the arcs have become clearly visible for the first time".

So far, Cassini's scientists are unaware regarding what led to the arcs, however there are some theories related to it. It is expected that the marks could be from gas escaping from the center of the moon or cracks in its surface and ice with chemical impurities.

According to Paul Helfenstein, a scientist at Cornell University working on the Cassini imaging team, the red arcs should definitely be geologically young for the reason that they cut across some older features such as impact craters; however, their age in years is not known.