Portuguese 
Spanish 
3 min of reading 
0 comments 
What If All the Hidden Ice on Mars Melted? Well, the Surprising Data from ESA’s Mars Express Probe Raises an Intriguing Reflection: A Potential Ocean on Mars That Would Cover the Planet with a Layer of Water Between 2.7 and 1.5 Meters Deep.
Mars has always sparked our curiosity, and now it reveals a well-kept secret: beneath its surface, a layer of ice hidden under dust could, if melted, form a true ocean. This idea not only fuels the imagination but also broadens our understanding of the history and geology of the Red Planet.
The Surprising Data from the Mars Express Probe
Scientists used data from the Mars Express radar to explore below the surface of Mars, and what they found was nothing short of impressive! The area known as Medusae Fossae (MFF) is a vast formation of wind-sculpted deposits, extending hundreds of kilometers in diameter and several kilometers in height. This area, located at the boundary between Mars’s highlands and lowlands, is considered one of the planet’s largest sources of dust, making it a perfect setting for hiding geological secrets.
The seemingly harmless layer of dust hides a treasure: thick deposits of ice, with an estimated thickness of up to 3,000 meters! Just imagine: right beneath the dust, a vast reservoir of frozen water, waiting to be revealed. This discovery leads us to think about the possibility that if this ice melted, it could transform into an ocean on Mars capable of covering the planet with a layer of water.
-
Embrapa takes cashew, peanuts, and sesame to the world’s largest seed bank in Norway, where Brazil has already stored more than 8,000 samples since 2012 against pests and climate change.
-
Finnish company creates recycled plastic and biomass blocks that fit together without cement, are 10 times lighter than common blocks, and have already been used to build schools in earthquake-affected areas.
-
A US startup wants to build a 10 km space cannon to launch multi-ton payloads into orbit at Mach 23, replacing part of the rockets with a colossal structure that looks like a science fiction weapon.
-
Extreme droughts and floods have doubled on the planet since 1901, according to a study of 1,300 river basins that reveals increasing pressure on agriculture, rivers, soils, ecosystems, and water supply.
Melting Scenarios: Depth of the Ocean on Mars
Now, let’s get to what really intrigues: what would be the depth of this ocean? Researchers presented two interesting scenarios:
Scenario 1: 300 m of Dust and 2.7 m Depth
In this first scenario, it is assumed that the layer of dry material (possibly dust or volcanic ash) covering the ice is about 300 meters thick. With this configuration, the total volume of water ice present in the MFF deposits would be approximately 400,000 km³. If all this ice melted, it would result in an ocean covering Mars with a depth of 2.7 meters. It’s like imagining a thin sheet of water, but even so, it would transform the entire landscape of the planet.
Scenario 2: 600 m of Dust and 1.5 m Depth
But what if the layer of dust is thicker, about 600 meters? In this case, the volume of ice would be reduced to 220,000 km³, and the melting would result in an ocean with only 1.5 meters of depth. Even though this is less impactful in terms of volume, this scenario still shows us how delicate and surprising Mars’s geology can be, with the potential to create an ocean on Mars that, although shallow, would be an unparalleled phenomenon.
Other Evidence of Water
And it doesn’t stop there! In the vast northern plains of Mars, scientists also found thousands of mounds and hills rich in clay minerals. These formations, which rise hundreds of meters above the terrain, are like clues left behind by the water that once flooded the region. Formed by the interaction of rocks with water over millions of years, these structures help paint a broader picture of Mars’s history and reinforce the idea that water has always played a crucial role on the Red Planet.
Be the first to react!