Mars today (despite the presence of a small amount of a liquid water) is a dry, frozen place. But this was not always the case. Ancient Mars was likely warm and wet, much like Earth. So what happened to change it? Thanks to brand new results from NASA’s MAVEN mission, announced today, we may finally know.
New data collected by the Curiosity rover shows that Mars was once quite Earth-like, featuring river deltas, lakes, and a warm climate. What’s more, the Red Planet may have been able to sustain liquid water at the surface long enough for life to emerge and evolve.
Yesterday, NASA reignited our hopes of finding alien life when it announced the first direct evidence of liquid water on Mars. But before we start indulging in fantasies of space crabs and reptilian beings, we ought to remember that Mars is a frigid world with a thin atmosphere. And that raises an obvious question:…
Today we learned something new, and amazing, about Mars. But, although today was the day that the news was confirmed, it’s been in the making for quite sometime. Here, in pictures, is a history of how we finally found out that there really was water flowing up on Mars.
NASA just confirmed something incredible: There’s water flowing on Mars today. But what does that mean for life on the red planet today—both the life that may already be present, as well as the life we could bring by building a colony there?
After a weekend of rampant speculation, NASA has confirmed our suspicions: There’s probably liquid water on Mars today. The landmark finding makes the notion of life on the Red Planet all the more plausible.
The pictures of Martian mountain range Phlegra Montes look characteristically dry and dusty. But not so fast, say researchers at ESA. Just 60 feet below the surface, they think there's something buried: Ice.
Data collected by the Curiosity Rover suggests Mars once featured a moderate climate capable of fostering lakes of liquid water and even a vast sea, and that this climate could have extended to many parts of the Red Planet.
Evidence suggests that Mars had water flowing on its surface at various points in its ancient history. But the evidence also points to temperatures being far too cold at those time for water to be liquid. So, how can both facts be true? At last, this paradox may be on the verge of resolution.
A recent analysis of Martian surface soil samples shows that it contains about 2% water by weight. This is fantastic news for future colonists of the Red Planet.
Not to be outdone by Curiosity, the Opportunity rover has made one of its most significant scientific discoveries to date. A recent analysis of clay minerals indicates that neutral water once existed on Mars — water that could have been suitable for life.
We know that Mars once had lots of water, considered a prerequisite for habitability. What hasn't been known, however, is just how friendly — or unfriendly — this water might have been to life, as the temperature and chemical conditions of ancient Martian water has remained a complete mystery. But as a new analysis…
NASA scientists working with Curiosity have announced that water did indeed flow on Mars at one point in its history — and we're not talking trickles. A newly discovered ancient streambed indicates that the water ran fast and deep, possibly as much as hip deep. The discovery marks a precedent setting achievement for…
As NASA's Curiosity rover scours the Martian surface in search of signs that Mars was once capable of fostering complex life, a team of researchers from the University of Poitiers, France, and Caltech have issued a paper that casts serious doubt on the notion that the planet was once habitable.
Last August, NASA's HiRISE orbiter spotted strange streaks on the Martian surface that most likely were the result of flowing water on the planet's surface. Now, eight months later, scientists still haven't come up with any better explanations.
This image reveals the dark sediments and worn path of what was once a river delta, connecting a river with its lake terminus. Though this river bed has been dry for eons, it's proof that rivers once ran on Mars.
Click to viewThough NASA has been reporting for years that there is water ice on Mars, today the US space agency held a press conference to announce definitively that the Phoenix Lander has found traces of water ice on the red planet. As Phil Plait over at Bad Astronomy points out, today's announcement was really…