Images taken using radar technology of an area near the equator of Mars have revealed what appears to be massive deposits of ice buried underneath the surface of the Red Planet.

According to a press release from the European Space Agency, if the radar images do turn out to be water ice, it would be enough to cover the entire planet in a shallow ocean of water anywhere from 1.5 meters to 2.7 meters deep. This could potentially prove an extremely useful discovery for future human exploration and potential occupation of Mars.

The European Space Agency’s Mars Express Orbiter was responsible for the discovery. The Mars Express was launched in June of 2003 and has been used to research the fourth planet from the sun ever since 2004. Since that time it has found striking evidence of current or past presence of water on Mars including the discovery of hydrated minerals which, according to NASA, form only in the presence of water. 

This is not the first time evidence of ice has been found on Mars, but the new discovery represents the largest potential deposits of ice found thus far in an area known as the Medusae Fossae Formation, which was studied about 15 years ago for its deposits which were not able to be clearly seen at the time. 

“We’ve explored the MFF again using newer data from Mars Express’s MARSIS radar, and found the deposits to be even thicker than we thought: up to 3.7 km thick,” said Thomas Watters of the Smithsonian Institution USA, lead author of both the new research and the initial 2007 study. “Excitingly, the radar signals match what we’d expect to see from layered ice, and are similar to the signals we see from Mars’s polar caps, which we know to be very ice rich.”

The MFF is an area of Mars known for its massive amounts of dust which can create harrowing dust storms all around the planet. When the Mars Express originally identified images of the deposits 15 years ago, it was suspected the deposits might just be more dust, but researchers have said that the new images show greater evidence that the deposits appear to be water ice. 

“Here’s where the new radar data comes in! Given how deep it is, if the MFF was simply a giant pile of dust, we’d expect it to become compacted under its own weight,” said co-author Andrea Cicchetti of the National Institute for Astrophysics, Italy. “This would create something far denser than what we actually see with MARSIS. And when we modeled how different ice-free materials would behave, nothing reproduced the properties of the MFF – we need ice.”

The discovery was made from an orbiting spacecraft far above the surface so it will likely be several years, decades even, before we can find out for certain but the European Space Agency emphasized the importance of the discovery as crucial information to a well-rounded understanding of the planet which very well could house humans one day.

“This latest analysis challenges our understanding of the Medusae Fossae Formation, and raises as many questions as answers,” said Colin Wilson, ESA project scientist for Mars Express and the ESA ExoMars Trace Gas Orbiter (TGO). “Unfortunately, these MFF deposits are covered by hundreds of meters of dust, making them inaccessible for at least the next few decades. However, every bit of ice we find helps us build a better picture of where Mars’s water has flowed before, and where it can be found today.”

In the event that a human-occupied spacecraft lands on Mars, it’s near impossible with current technology to land near the polar caps of Mars, which have been known for a while to contain water ice. If the MFF deposits do turn out to be water ice, it would be a much easier area to access based on proximity to potential landing zones for humans to access water. 

“How long ago did these ice deposits form, and what was Mars like at that time? If confirmed to be water ice, these massive deposits would change our understanding of Mars climate history. Any reservoir of ancient water would be a fascinating target for human or robotic exploration,” Wilson said. “Together, our Mars explorers are revealing more and more about our planetary neighbor.”

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The test flight of SpaceX’s highly anticipated Starship rocket—eventually en route to the moon and Mars—was delayed from its original launch date on Monday and rescheduled for a new day: April 20.

The rocket remains on the launchpad located in Cameron County, Texas, approximately 17 miles east of Brownsville, while engineers get the rocket’s pressurized system ready again, which unexpectedly froze. “A pressurant valve appears to be frozen, so unless it starts operating soon, no launch today,” Musk initially tweeted Monday.

“SpaceX is targeting as soon as Thursday, April 20 for the first flight test of a fully integrated Starship and Super Heavy rocket from Starbase in Texas,” the company posted. “The 62 minute launch window opens at 8:28 a.m. CT and closes at 9:30 a.m. CT.” The fact that it will launch on April 20 is “perhaps inevitable,” Musk tweeted in reply to the announcement.

What makes Starship unique is its fully reusable transportation system designed to carry both crew and cargo to Earth orbit. Musk and the SpaceX team believe that humanity will return to the Moon and travel to Mars. This particular test will help SpaceX improve the probability of success in the future. 

“To date, the SpaceX team has completed multiple sub-orbital flight tests of Starship’s upper stage from Starbase, successfully demonstrating an unprecedented approach to controlled flight,” SpaceX wrote. “These flight tests helped validate the vehicle’s design, proving Starship can fly through the subsonic phase of entry before re-lighting its engines and flipping itself to a vertical configuration for landing.”

SpaceX explained why there are so many factors that can delay a space flight.

“In addition to the testing of Starship’s upper stage, the team has conducted numerous tests of the Super Heavy rocket, which include the increasingly complex static fires that led to a full-duration 31 Raptor engine test—the largest number of simultaneous rocket engine ignitions in history. The team has also constructed the world’s tallest rocket launch and catch tower. At 146 meters, or nearly 500 feet tall, the launch and catch tower is designed to support vehicle integration, launch, and catch of the Super Heavy rocket booster. For the first flight test, the team will not attempt a vertical landing of Starship or a catch of the Super Heavy booster.”

A live webcast of the flight test will begin about 45 minutes before liftoff. As is the case with many space-related launches, this schedule is dynamic and likely to change.

“During the next attempt on Thursday, the Super Heavy booster will detach and then make a hard splashdown in the Gulf of Mexico about eight minutes after liftoff. Starship’s upper-stage spacecraft will make a partial lap around Earth, coming down in the Pacific Ocean near Hawaii around 90 minutes after launch,” the report said.

Is the 4/20 date significant? Probably, given Musk’s past five years in the spotlight: On August 7, 2018, Musk tweeted he was mulling over taking Tesla private, quoting a price of $420 per share for the buyout.

He told the New York Times that he’s aware of how popular weed is, but he’s not sure how it could help productivity, to be candid. “It seemed like better karma at $420 than at $419,” Musk said. “But I was not on weed, to be clear.” That all changed a month later on a podcast appearance on The Joe Rogan Experience.

On September 6, 2018, Musk smoked a blunt on episode #1169 of The Joe Rogan Experience. Rogan himself became embroiled in the topic of free speech due to his Spotify fiasco, over concerns the podcaster was sharing information that wasn’t medically sound.

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