Tutolo led a new study of rock samples collected by the Curiosity rover that might have answered this question. The mystery ...

A new study suggests that Mars may have once had an active carbon cycle, which could explain why the planet was warmer and ...

In those drill sites, Curiosity detected deposits containing an iron carbonate material called siderite. According to Ben Tutolo, a University of Calgary associate professor of Earth, Energy, and ...

For decades, scientists have debated what wiped out the dinosaurs 66 million years ago. The usual suspects? A massive ...

But geological formations clearly indicate that ... Curiosity’s findings also show evidence of an ancient carbon cycle on Mars. Researchers identified iron oxyhydroxides in the carbonate-bearing ...

Specific areas of research include modeling the global carbon cycle using isotope ratios in atmospheric carbon dioxide and methane, development of techniques for measuring isotope ratios in ...

Most of my work has focused on the last full glacial-interglacial cycle, spanning roughly the past 150,000 years ... The oceans also exert control over atmospheric levels of carbon dioxide, an ...