The climate of early Mars remains a mystery for planetary scientists, but Martian meteorites provide some clues. In a new study published in Science Advances, computer modeling was used to predict the ...

Viking consisted of two twin orbiters and landers, with experimental chambers in the landers to conduct three biology experiments.

All evidence points to Mars having had a carbon dioxide-rich atmosphere billions of years ago, but insufficient carbonates in Martian soil challenge this theory. Now, a new study using data from ...

While the early climate of Mars remains an open question, a new study suggests that its atmosphere may have been hospitable ...

We've learned a great deal about Mars over the last two decades, thanks to the long-term success of multiple orbital missions and rovers. It's now considered likely that liquid water once flowed ...

During recent observations from the ESA Mars Express spacecraft in orbit around Mars, methane was detected in its atmosphere. Whilst it is too early to draw any conclusions on its origin, exciting as ...

A key tracer used to estimate how much atmosphere Mars lost can change depending on the time of day and the surface temperature on the Red Planet, according to new observations by NASA-funded ...

Mars' atmosphere is one of the planet's most scientifically controversial characteristics. We know that the Red Planet's atmosphere is incredibly sparse, but mounting evidence suggests it once ...

Mars wasn’t always the cold desert we see today. There’s increasing evidence that water once flowed on the Red Planet’s surface, billions of years ago. And if there was water, there must also have ...

Mars’s thin atmosphere is now about 95% carbon dioxide, but when the planet’s atmosphere is only 1/200th the size of Earth’s, that doesn’t mean very much. Now deeply buried minerals reveal Mars once ...