On Wednesday, scientists announced they found a lake of salty water beneath the surface of the red planet.
And, if we're to put humans on the Red Planet, we'll need a local water source. The discoveries, if affirmed, would stamp the recognition of the biggest body of liquid water on Mars.
Mars is now cold, barren and dry but it used to be warm and wet. They revealed the presence of liquid water.
"While the discovery is a major one for researchers hoping to find life on Mars, no one's getting their hopes up-but they are tentatively preparing themselves for a real alien discovery in Mars" subsurface.
In an interview with Notimex, Chicana Nuncebay said that on this occasion, the stretch between the "red planet" and the "blue planet" will be close to 57.6 million kilometers, the shortest in the last 100 years.
Microbial life survives some of the harshest conditions on Earth, including within subglacial environments.
Dissolved salts are thought to keep the water fluid, despite having a temperature below freezing point.
Pascal Descamps, an Astronomer with the Paris Observatory, said: "We have a rare and interesting conjunction of phenomena". Is there life on Mars?
Radio waves beamed down to the surface by Marsis penetrated through the ice and bounced back to the spacecraft.
These reflections "provide scientists with information about what lies beneath the surface".
A total of 29 sets of radar samplings showed a "very sharp change in its associated radar signal", allowing scientists to map the outlines of the lake.
"Imagine that we're sitting on the Earth - looking at Mars".
"The long duration of Mars Express, and the exhausting effort made by the radar team to overcome many analytical challenges, enabled this much-awaited result, demonstrating that the mission and its payload still have a great science potential", says Dmitri Titov, ESA's Mars Express project scientist.
Between 2012 and December 2015 the Planum Australe region was mapped by the Mars Advance Radar for Subsurface and Ionosphere Sounding (Marsis) instrument carried on the orbiter.
"This suggests that something unusual is going on here".
You'll be able to see Mars with the naked eye, but spectators can use binoculars or telescopes to get a more detailed view.
This time of year is special, Boyle said, because all seven heavenly bodies that match up with the seven days of the week will be, at some point, visible in the sky. Besides that, there are also large amounts of water as ice under the ground.