Reminder of a Griffin Rampant in an Ancient Martian Meteorite (image) University of Maryland Share Print E-Mail Caption A microscope reveals skeletal magnetite crystals that resemble a mythical griffin in a 1.3 billion year old Martian meteorite, MIL 90032. Researchers studied Mars' past atmosphere by analyzing sulfur isotopic ratios in 40 meteorites that fell to Earth from Mars. Credit James Dottin III Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.