The fact that the cold, dry Mars of today had flowing rivers and lakes several billion years ago has puzzled scientists for ...

New research reveals ancient ripples on Mars, providing compelling evidence of long-lost lakes that once existed 3.7 billion ...

Mars's atmosphere and climate are impacted by interactions with solar wind, a stream of plasma comprised of protons and ...

Harvard scientists explain how Mars had warm spells billions of years ago, allowing rivers and lakes to exist.

The car-sized Curiosity rover has spotted evidence of once quite hospitable environs on Mars.

During the fluctuations between warm and cold climates, the chemistry of Mars' atmosphere was also fluctuating. CO2 is constantly hit by sunlight and converted to CO. In warm periods, the CO could ...

It all depends on who you ask. Current understanding of Mars' evolution is based on spacecraft measurements and meteorite analysis. Those meteorites were ejected from Mars and traversed space ...

The implications of this research extend beyond understanding Mars' atmospheric evolution ... compelling evidence that much ...

He is Principal Investigator on the Mars Atmosphere and Volatile Evolution (MAVEN) mission, orbiting Mars since 2014 and focused on studying the loss of Mars atmosphere to space.

During the fluctuations between warm and cold climates, the chemistry of Mars’ atmosphere was also fluctuating. CO2 is constantly hit by sunlight and converted to CO. In warm periods ...