Life on Mars? Unusual Rocks Spark Excitement

NASA's robot on Mars found some interesting rocks. These rocks have unusual spots that look like leopard prints. Scientists are excited because these rocks might show signs of very old life on Mars.

The rocks were found in an old riverbed. They are very old, about 3.5 billion years old. The spots on the rocks might be made by tiny living things from long ago. But scientists are not sure yet. They need to study the rocks more to know for sure.

To really understand these rocks, scientists want to bring them back to Earth. This is hard to do, but it might happen in the future. For now, this discovery makes scientists hopeful about finding life on other planets.