A meteorite found in the Sahara Desert has been identified as a piece of Mars roughly 4.1 billion years old, according to Scinexx. The German science outlet reports that the rock offers a window into the planet's earliest chapter.
The specimen is described as having a pinkish color, and several German-language outlets, including FOCUS online and Forschung und Wissen, have reported its identification as Martian in origin. Scinexx places its age at 4.1 billion years, making it a rare sample from a period of Mars history that scientists otherwise study largely from a distance.
Coverage has focused on what the meteorite may say about water on early Mars. t3n reports that the find provides notable indications related to water, and Root-Nation.com describes evidence pointing to water having existed on Mars for a longer stretch of time. These claims are attributed to those outlets; the underlying research details were not available in the reporting summarized here.
Meteorites that originated on Mars are among the few physical samples of the planet available on Earth, which gives them outsized importance for researchers piecing together its early conditions. A specimen dated to 4.1 billion years ago falls within a formative era of the planet's development.
What to watch next: whether the research team behind the identification publishes full analytical results, which would clarify the evidence for water and the methods used to date the rock.
