A new study reveals that an ancient lake bed on Mars may hold evidence of past life on the planet. The Mars Perseverance rover has confirmed that the Jezero crater was once filled with water and contains lake sediments that could potentially hold traces of life. Ground-penetrating radar has confirmed the existence of these sediments, providing scientists with a way to study the formation of these deposits. The rover’s radar images show regular and horizontal sediment layers, similar to those found in lakes on Earth. The next step is to bring back soil and rock samples from Mars for further analysis.