Martian rover uncovers mysterious striped rock in Jezero Crater
Scientists are excited about the latest discovery of the Perseverance rover on the Red Planet. The Martian vehicle has found a striped rock that does not fit its surroundings at all, which brings hope for future exploration.
The Martian rover discovered the extraordinary striped rock on the slopes of the inner wall of the Jezero Crater. Scientists are thrilled about the find, which stands out prominently against the landscape. According to space.com, the unusual Martian rock has been named "Freya's Castle."
It looks completely different from the surrounding rocks. The Perseverance rover encountered it on 13 September 2024 during its journey up the inner wall of the massive Jezero Crater, which the rover has been exploring since landing on Mars in February 2021.
Perseverance took pictures of Freya's Castle with its Mastcam-Z instrument, which functions as its primary "eyes." Even preliminary studies of the rock, which has a diameter of 20 centimetres, have already provided significant clues about its origin.
Our knowledge of its chemical composition is limited, but early interpretations are that igneous and/or metamorphic processes could have created its stripes — wrote Athanasios Klidaras, a doctoral student in planetary sciences at Purdue University, in a statement posted on the NASA Science website.
The mystery of the striped rock on Mars
While volcanic or metamorphic origins (meaning a type of rock transformed into another, usually under excessive temperature or pressure, or both) may explain the stripes on the rock's surface, they do not explain how Freya's Castle got to the location where the rover found it.
It is undisputable that the striped rock stands out strongly against all the other inconspicuous pebbles and rocks around it. One possible scenario suggests that the stone rolled down from a higher location where similar rock may be found.
The possibility has us excited, and we hope that as we continue to drive uphill, Perseverance will encounter an outcrop of this new rock type so that more detailed measurements can be acquired — emphasizes Klidaras.
Different from all others. Mars has already amazed us more than once
In May 2024, Perseverance stumbled upon a boulder field called Mount Washburn, in addition to Freya's Castle. Most of the rocks appeared dark, typical of many similar rocks found on Mars, but one rock stood out particularly.
A light, speckled rock measuring 45 centimetres by 35 centimetres was named Atoko Point. Research conducted by the rover's instruments indicated that Atoko Point is composed of pyroxene and feldspar, which are commonly found in volcanic and metamorphic rocks on Earth.
Atoko Point likely also originated from further up the slope, and mission scientists expect to find many other strange rocks that rolled down from Martian hills, possibly after weathering from significant exposures.
