Harvard scientists studying the mystery of water and life on ancient Mars believe they may have finally found a solution.

"Ancient Earth was nothing like our current home," explains Shungo Koyama from Tohoku University, "It was a much more hostile place; rich in metallic iron with an atmosphere containing hydrogen ...

"It's been such a puzzle that there was liquid water on Mars, because Mars is further from the sun, and also, the sun was fainter early on." ...

We are researching how the cells of leaves on ginkgo trees have changed over time and how we can use this knowledge to learn about the ancient atmosphere of the Earth. Fossil Atmospheres is a National ...

A computer simulation finds that an atmosphere made up of from 6% to more than 70% carbon dioxide could have produced the effect seen in the samples. "The amount of oxidation in the ancient ...

This means they are likely to have made up most of the early atmosphere, along with other volcanic gases. Chemical composition of ancient rocks Iron sulfide can only exist in rocks that were ...

Existing explanations about how and when levels of gases changed in the ancient atmosphere are challenged by: Mendeleev left gaps where he predicted that elements, not discovered at the time ...

Now, Harvard researchers think they have a good explanation for a warmer, wetter ancient Mars. Building on prior theories ... mixed with carbon dioxide in the Martian atmosphere to trigger episodes of ...

Researchers have found the oldest known evidence of lead pollution dating to around 5,200 years ago in ancient Greece ...

A recent study from the Massachusetts Institute of Technology (MIT) suggested that Mars' missing atmosphere might have been ...

Researchers have discovered two sets of ancient wave ripples on Mars ... indicating that the Martian atmosphere and climate must have been warm and dense enough to support liquid water open ...

We will use this novel mechanism to quantify climatic and atmospheric change through the Anthropocene and Earth’s ancient past. Demonstrate the utility of fossil micrometeorites as a climate proxy for ...