NewsPlanetary ScienceCheck out some of the weird rocks that have turned up on MarsIn the past year alone, two rovers have found several rocks unlike anything seen on Mars before These yellow crystals on Mars were exposed after the Curiosity rover drove over a rock in May 2024, breaking it open. The crystals are made of pure elemental sulfur, something that has never been seen on the Red Planet before. The odd rock is one of a handful discovered on Mars in just the past year. JPL-Caltech/NASA, MSSSBy Lisa Grossman1 hour agoAs the Mars rover Perseverance crested the top of Witch Hazel Hill, its operators back on Earth expected amazing things. This area on the western rim of the Jezero crater, along an ancient river delta that Perseverance has been exploring since it landed in 2021, is thought to contain some of the oldest rocks on the planets surface. The light-toned, layered materials promise a record of a wetter time, possibly one that hosted life.The team did not expect what they found on March 11: a dark rock resembling a clutch of frogs eggs. Dubbed St. Pauls Bay, the rock looks nothing like its neighbors. Where it came from and how it formed are a mystery.Sign up for our newsletterWe summarize the week's science breakthroughs every Thursday.