Space
Mars study reveals subsurface water in Red Planet’s vast lake system
Researchers working with data from the European Space Agency’s Mars Express orbiter have detected four subsurface lakes at the planet’s south pole. In a follow up to the 2018 discovery of a large body of water about 1.5 kilometers beneath the surface, three more water bodies were found in the same region spanning about 75,000 square kilometers.
“We identified the same body of water, but we also found three other bodies of water around the main one,” planetary scientist Elena Pettinelli of the University of Rome, one of the scientists responsible for the discovery, said in comments published by the journal Nature. “It’s a complex system.” The full data findings were detailed in a paper published on September 28th.
The Martian lakes were found using an instrument called the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) which measures with radio waves similar to how subsurface glacial lakes on Earth are identified. Given both the depth and the freezing temperatures on the planet, it’s also thought that the subsurface water must have a high salt content similar to some Antarctic regions. “From a thermal point of view, it has to be salty,” Pettinelli said.
Where water is found, the potential for also finding life is increased substantially, and salt levels up to five times that of Earth’s ocean water have been found to be amenable to life on our planet. NASA’s Perseverance rover, currently on its way to the red planet, will be searching for those very indicators with its astrobiologically-focused mission. At the super salt concentrations that might be required for liquid water on Mars, though, the environment is more problematic if not impossible.
“There’s not much active life in these briny pools in Antarctica,” John Priscu, an environmental scientist at Montana State University explained. “They’re just pickled. And that might be the case [on Mars].” Priscu’s group in Bozeman studies microbiology in icy environments, and in water where salt concentrations reach around 20 times ocean water levels, life is absent.
Another issue with the recent Mars Express data may be what the findings indicate overall, namely whether the ‘bright spots’ identified as possible lakes are actually lakes at all. There has been debate among scientists since the original 2018 discovery over whether Mars’s core emits enough heat to support liquid lakes, for instance.
-->“I do not think there are lakes,” Jack Holt, a planetary scientist at the University of Arizona, countered. “There is not enough heat flow to support a brine here, even under the ice cap.” Holt is on one of the science teams of NASA’s Mars Reconnaissance Orbiter. “If the bright material really is liquid water, I think it’s more likely to represent some sort of slush or sludge,” concurred Mike Sori, a planetary geophysicist at Purdue University.
Still, regardless of the outcome, the findings add to the growing dataset for future Mars-bound travelers to use in their exploration plans. But if these subsurface lake findings are further confirmed in the near future, the search for life on Mars just became a bit more promising.
Cybertruck
Tesla Cybertruck fleet takes over at SpaceX’s Starbase
Interestingly, the Cybertruck uses the same exterior, a stainless steel alloy, as SpaceX rockets. This synergy between the two companies and their very different products shows a very unified mentality between Musk companies.
Tesla Cybertrucks have taken over at SpaceX’s Starbase facility in Texas, as hundreds of the all-electric pickup trucks were spotted late last week rounding out a massive fleet of vehicles.
The Cybertruck fleet is geared toward replacing gas vehicles that are used at Starbase for everyday operations. The only surprise about this is that it was not done sooner:
Was just visiting. pic.twitter.com/5Q9wPPaeuH
— Derek Li (@derek1ee) October 31, 2025
Deliveries have been going on for a few weeks, as Cybertrucks have made their way across the state of Texas from Austin to Starbase so they could be included in SpaceX’s fleet of vehicles at the facility.
-->Interestingly, the Cybertruck uses the same exterior, a stainless steel alloy, as SpaceX rockets. This synergy between the two companies and their very different products shows a very unified mentality between Musk companies.
However, there are some other perspectives to consider as SpaceX is utilizing such a massive fleet of Cybertrucks. Some media outlets (unsurprisingly) are seeing this as a move of weakness by both Tesla and SpaceX, as the aerospace company is, in a sense, “bailing out” lagging sales for the all-electric pickup.
It’s no secret that Tesla has struggled with the Cybertruck this year, and deliveries have been underwhelming in the sense that the company was anticipating between 1 million and 2 million orders for the vehicle before it was widely produced.
A lot of things changed with the Cybertruck between its 2019 unveiling and 2023 initial deliveries, most notably, price.
The price of the Cybertruck swelled significantly and priced out many of those who had pre-ordered it. Some have weighed the option of whether this purchase was a way to get rid of sitting inventory.
-->However, it seems more logical to consider the fact that SpaceX was likely always going to transition to Teslas for its fleet, especially at Starship, at some point.
It doesn’t seem out of the question that one Musk company would utilize another Musk company’s products, especially considering the Cybertruck has been teased as the vehicle that would be present on Mars.
SpaceX is opening up its internet service, Starlink, to those impacted by Hurricane Melissa, as it made landfall in Jamaica and the Bahamas as a Category 5 storm.
Hurricane Melissa is expected to reach wind speeds of over 165 MPH over the next few days as it extends out into the Atlantic Ocean by Thursday and Friday.
Satellite imagery shows Hurricane #Melissa‘s growth from its formation on October 21 to a Category 5 hurricane through October 27, 2025. #HurricaneMelissa pic.twitter.com/goR3Hbgb9c
— The Weather Network (@weathernetwork) October 27, 2025
Citizens in Jamaica and the Bahamas have been preparing for the storm for the past week, getting necessary goods together and preparing for the massive storm to arrive. It finally did yesterday, and the first images and video of the storm are showing that it could destroy many parts of both countries.
-->Starlink is now being opened up for free until the end of November for those impacted by the storm in Jamaica and the Bahamas, SpaceX announced today:
For those impacted by Hurricane Melissa in Jamaica and the Bahamas, Starlink service is now free through the end of November to help with response and recovery efforts → https://t.co/fUko3xSviJ
— Starlink (@Starlink) October 28, 2025
It is a move similar to the one the company made last year as Hurricane Helene made its way through the United States, destroying homes and property across the East Coast. SpaceX offered free service for those impacted by the destruction caused by the storm.
The free Starlink service was available until the end of 2024.
-->Elon Musk’s companies have also made similar moves to help out those who are impacted by natural disasters. Tesla has offered Free Supercharging in the past, most notably during the California wildfires.
Tesla and SpaceX’s LA fire relief efforts: Cybertrucks, free Starlink and more
One major advantage of Starlink is that it is available for use in situations like this one, where power might be required to operate things like a modem and router.
Internet access is a crucial part of survival in these situations, especially as it can be the last leg some stand on to get in touch with emergency services or loved ones.
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SpaceX has reached an incredible milestone with its Starlink program, officially surpassing 10,000 satellites launched into low Earth orbit since starting the program back in 2019.
Last Sunday, October 19, SpaceX launched its 131st and 132nd Falcon 9 missions of 2025, one from Cape Canaveral, Florida, and the other from Vandenberg, California.
The 10,000th Starlink satellite was aboard the launch from California, which was Starlink 11-19, and held 28 v2 mini optimized satellites.
The achievement was marked by a satellite tracker developed by Jonathan McDowell.
🚨 With its Falcon 9 launch last Sunday, SpaceX officially has 10,000 Starlink satellites in orbit pic.twitter.com/xS5RVZ4ix0
— TESLARATI (@Teslarati) October 26, 2025
The first Starlink launch was all the way back on May 23, 2019, as SpaceX launched its first 60 satellites from Cape Canaveral using a Falcon 9 rocket.
Of the over 10,000 satellites in orbit, the tracker says 8,608 are operational, as some are intentionally de-orbited after becoming faulty and destroyed in the atmosphere.
SpaceX has truly done some really incredible things during its development of the Starlink program, including launch coverage in a global setting, bringing along millions of active subscribers that use the service for personal and business use, locking up commercial partnerships, and more.
Starlink currently operates in around 150 countries, territories, and markets and is available at least somewhere on all seven continents.
-->Additionally, Starlink has over 5 million subscribers worldwide, and 2.7 million have joined the program over the past year. It has revolutionized internet access on commercial aircraft as well, as several high-profile airlines like Qatar and United, among many others, have already installed Starlink on some of their planes to deliver more stable connectivity for passengers and crew.
SpaceX has the approval to launch 12,000 Starlink satellites from the FAA, but it plans to bring over 30,000 to its constellation, giving anyone the ability to have access to high-speed internet.
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