Mysterious signs were spotted on a rock on the surface of Mars, and their pattern looks unusual at first glance. Such markings can be formed naturally by wind erosion, dust movement, mineral cracks, or ancient water activity. Mars has extreme weather and a long geological history that can create shapes that look intentional. While these signs may seem mysterious, scientists study them carefully to understand the planet’s past. Mars continues to surprise us with rocks that look like they hold hid

Could Earth-based microbes survive a trip to Mars? Yes! That’s why we made sure our NASA's Perseverance Mars Rover met cleanliness requirements before leaving our home planet. Dr. Moogega Cooper of the NASA Jet Propulsion Laboratory is here to fill us in: youtu.be/uMjXb7T-evE #CountdownToMars | NASA - National Aeronautics and Space Administration