A 1,000-mile cloud on Mars may reveal physics never seen in nature

A 1,000-mile cloud on Mars may reveal physics never seen in nature

fivenewscrypto    octobre 26, 2026   

Every morning during the Martian spring and summer, a thin and extremely long cloud emerges, only to disappear again. The wispy formation appears near the volcano Arsia Mons and gradually elongates until it reaches over 1,000 miles—about the distance from New York to Kansas City as the crow flies—before dissipating. This cycle then repeats for several months.

Since it was first recorded by a probe in 2018, scientists have been unable to find a plausible explanation for the existence of this cloud, often referred to as the Arsia Mons Elongated Cloud (AMEC). Until now. Recently, researchers successfully modeled the cloud’s formation for the first time, their results suggesting that it may be driven by a physical process that has never been directly observed in any planet's atmosphere.

"We found that we needed to include some exotic physics… physics that, while included in textbooks, is treated as theoretical and usually thought not to happen in nature. It certainly hasn’t been seen in action before," Jorge Hernández-Bernal, a planetary scientist at Paris’ Sorbonne Université and lead author of the study, said in a press release. "Once we included this physics in our simulations, the AMEC emerged just as we hoped.”

Read full article

Comments

Ice sheet expansion may have started 2,000 years ago, but we canceled that

Ice sheet expansion may have started 2,000 years ago, but we canceled that

fivenewscrypto    octobre 26, 2026   

Barnes Ice Cap sits on the central plateau of Baffin Island, in the Canadian Arctic. It is the last surviving fragment of the Laurentide Ice Sheet, the largest of the Pleistocene ice sheets, which at its peak buried most of Canada under two miles of ice and locked away around 80 meters of sea level. That remnant has now yielded direct physical evidence that ice sheets might have reversed their retreat and started to grow again thousands of years ago.

In a recent Science study, researchers show that the Laurentide reached its smallest size about 3,600 years ago, then started re-expanding roughly 2,000 years ago, which the team interprets as the opening move of the next glaciation. Apparently, this brand-new ice age was on its way until about 1960, when human-caused climate warming reversed it.

Frozen to the bed

“Barnes is the last remaining piece of one of the domes of the Laurentide Ice Sheet,” says Nicolás Young, a geologist at Columbia University's Lamont-Doherty Earth Observatory and lead author of the study. As that enormous dome thinned through the Holocene, its margin withdrew up onto Baffin Island, and what's left today is the deflated core of something that was once two miles thick. The reason Barnes can testify about its own history, Young explains, comes down to the temperature at its base.

Read full article

Comments

NASA updates lander plans for Moon landings, finally solves long-festering Orion issue

NASA updates lander plans for Moon landings, finally solves long-festering Orion issue

fivenewscrypto    octobre 26, 2026   

During a lengthy news conference on Friday, NASA provided a detailed overview of how it plans to return astronauts to the lunar surface as soon as 2028 as part of its Artemis Program.

Although much of the information behind these plans has been previously reported at Ars Technica and elsewhere, this marked the first time NASA has laid them out in detail and acknowledged some substantial changes in the architecture.

Most notably, for SpaceX's Starship vehicle, the revised plan calls for the Orion spacecraft to dock with the Starship lunar lander in high-Earth orbit before transiting to the Moon. And for Blue Origin, the mission architecture includes four launches of the New Glenn rocket, but no spacecraft-to-spacecraft refuelings. Additionally, the Blue Origin plan allows for the possibility of its Blue Moon lander rendezvousing with Orion in low-lunar orbit.

Read full article

Comments

Hegseth warns prediction market bets warp military judgment, endanger troops

Hegseth warns prediction market bets warp military judgment, endanger troops

fivenewscrypto    octobre 26, 2026   

Defense Secretary Pete Hegseth issued a memo warning military personnel against using nonpublic information to make bets on prediction markets, saying the wagers could give important clues to enemy countries.

"Do Not Compromise Military Operations for Personal Financial Gain," said the subject line of an October 20 memo published yesterday by CBS News. Hegseth's memo was sent to senior Pentagon leadership, Combatant Command leaders, and Defense Department field activity directors.

Hegseth wrote:

Read full article

Comments

Updated Google privacy policy says your Gmail might be used for advertising

Updated Google privacy policy says your Gmail might be used for advertising

fivenewscrypto    octobre 26, 2026   

Using Google's products and services has always been fundamentally precarious—doing so gives the world's largest advertising company a lot of juicy personal data. Google has long said it won't use the sensitive data from products like Gmail, Drive, and Photos for ad personalization, but a change to the company's privacy policy appears to dismantle that firewall.

On October 16, Google issued an update to its privacy policy, spotted by Android Authority. The ad personalization section used to include a clear limit on data from certain apps. "We don’t show you personalized ads based on your content from Drive, Gmail, or Photos," the document said. Now, Google has updated it with the following language.

Updated language on when your sensitive data might inform ads. Credit: Google

This equivocation opens the door to using data from apps like Gmail and Photos in ads when it's shared with other Google services, and it just so happens Google has a mechanism for doing that, with Personal Intelligence. The company released Personal Intelligence in early 2026, allowing users to hand data from multiple apps to Google AI products. The idea is that the added context from your existing data will lead to better AI answers, but it's also proving to be a privacy minefield.

Read full article

Comments

Inside the Pentagon, the pressure is on to find a home for a new spaceport

Inside the Pentagon, the pressure is on to find a home for a new spaceport

fivenewscrypto    octobre 26, 2026   

Leaders in the US Space Force would like to have a new spaceport up and running in four years, adding a third heavy-lift launch site to relieve pressure from bases in Florida and California that have shot rockets into orbit for nearly 70 years.

The obvious problem with that ambition is 2030 is four years away, and Pentagon officials have not determined where the new spaceport should go or how to acquire land for it.

Air Force Secretary Troy Meink first mentioned the service's search for a third launch base in May. A congressionally mandated study of the Space Force's launch infrastructure identified the need for "another site that's capable of heavy and super heavy launch capability," Meink said in a House Armed Services Committee hearing.

Read full article

Comments

Spotify ramps up policy enforcement on family plans

Spotify ramps up policy enforcement on family plans

fivenewscrypto    octobre 25, 2026   

As reported by Music Business Worldwide, Spotify appears to be stepping up enforcement of existing policies regarding Family and Duo subscription plans by requiring users to scan a QR code in person on the plan manager's device in order to maintain access to it. Those who fail to scan the address verification QR code within seven days will see their account demoted to the free tier and be barred from joining any other Duo or Family plan for 12 months.

Spotify's QR code plan enforcement. Credit: Spotify

Spotify's support documentation verifies the policy after users on Reddit began posting reports of receiving the QR prompt. The enforcement stems from Spotify's requirement that family plan members reside at the same address—a seemingly reasonable policy in concept. But what if you have a child away in college, a spouse who works on the road, or any number of other circumstances that might see families separated by physical distance? The policy could extend beyond friend groups looking to save a buck, affecting actual families who thought they were using the program as intended.

Goldman Sachs analysts, in their October 15 Music in the Air: 10 Years On report, made available by HITS Daily Double, estimate that "a meaningful share of family plan users are not actual household members, but rather friends sharing a plan to reduce costs." The report goes on to add, "We see additional monetization upside from tightening household verification on multi-user plans. Most family plans require members to reside at the same address, but enforcement has been minimal in practice."

Read full article

Comments