SpaceX accomplished a groundbreaking engineering feat Sunday, when it launched the fifth test flight of its gigantic Starship rocket, then caught the booster back at the launch pad in Texas with mechanical arms seven minutes later.

This achievement is the first of its kind, and it's crucial for SpaceX's vision of rapidly reusing the Starship rocket, enabling human expeditions to the Moon and Mars, routine access to space for mind-bogglingly massive payloads, and novel capabilities that no other company—or country—seems close to attaining.

The test flight began with a thundering liftoff of the 398-foot-tall (121.3-meter) Starship rocket at 7:25 am CDT (12:25 UTC) from SpaceX's Starbase launch site in South Texas, a few miles north of the US-Mexico border. The rocket's Super Heavy booster stage fired 33 Raptor engines, generating nearly 17 million pounds of thrust and gulping 20 tons of methane and liquid oxygen propellants per second at full throttle.

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On October 10, 2018, Tyndall Air Force Base on the Gulf of Mexico—a pillar of American air superiority—found itself under aerial attack. Hurricane Michael, first spotted as a Category 2 storm off the Florida coast, unexpectedly hulked up to a Category 5. Sustained winds of 155 miles per hour whipped into the base, flinging power poles, flipping F-22s, and totaling more than 200 buildings. The sole saving grace: Despite sitting on a peninsula, Tyndall avoided flood damage. Michael’s 9- to 14-foot storm surge swamped other parts of Florida. Tyndall’s main defense was luck.

That $5 billion disaster at Tyndall was just one of a mounting number of extreme-weather events that convinced the US Department of Defense that it needed new ideas to protect the 1,700 coastal bases it’s responsible for globally. As hurricanes Helene and Milton have just shown, beachfront residents face compounding threats from climate change, and the Pentagon is no exception. Rising oceans are chewing away the shore. Stronger storms are more capable of flooding land.

In response, Tyndall will later this month test a new way to protect shorelines from intensified waves and storm surges: a prototype artificial reef, designed by a team led by Rutgers University scientists. The 50-meter-wide array, made up of three chevron-shaped structures each weighing about 46,000 pounds, can take 70 percent of the oomph out of waves, according to tests. But this isn’t your grandaddy’s seawall. It’s specifically designed to be colonized by oysters, some of nature’s most effective wave-killers.

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Early Sunday morning, SpaceX will try something no one has ever done before. Around seven minutes after lifting off from South Texas, the huge stainless steel booster from SpaceX's Starship rocket will, if all goes according to plan, come back to the launch pad and slow to a hover, allowing powerful mechanical arms to capture it in midair.

This is SpaceX's approach to recovering Starship's Super Heavy booster. If it works, this method will make it easier and faster to reuse the rocket than it is to recycle boosters from SpaceX's smaller Falcon 9 launch vehicle. Falcon 9's boosters usually come down on a floating drone ship stationed hundreds of miles out to sea, requiring SpaceX to return the rocket to shore for refurbishment.

“We’re going for high reusability," said Bill Gerstenmaier, SpaceX's vice president of build and flight reliability.

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Pamela Goodwin has received hundreds of emails from patients asking if they should take a cheap, readily available drug, metformin, to treat their cancer.

It’s a fair question: Metformin, commonly used to treat diabetes, has been investigated for treating a range of cancer types in thousands of studies on laboratory cells, animals , and people. But Goodwin, an epidemiologist and medical oncologist treating breast cancer at the University of Toronto’s Mount Sinai Hospital, advises against it. No gold-standard trials have proved that metformin helps treat breast cancer—and her recent research suggests it doesn’t.

Metformin’s development was inspired by centuries of use of French lilac, or goat’s rue ( Galega officinalis ), for diabetes-like symptoms. In 1918, researchers discovered that a compound from the herb lowers blood sugar. Metformin, a chemical relative of that compound, has been a top type 2 diabetes treatment in the United States since it was approved in 1994. It’s cheap— less than a dollar per dose —and readily available, with few side effects. Today, more than 150 million people worldwide take the stuff.

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More than 86 percent of healthcare providers surveyed across the US are experiencing shortages of intravenous fluids after Hurricane Helene's rampage took out a manufacturing plant in western North Carolina that makes 60 percent of the country's supply .

IV fluids are used for everything from intravenous rehydration to drug delivery. The plant also made peritoneal dialysis fluids used to treat kidney failure.

Premier, a group purchasing organization for medical supplies that counts thousands of hospitals and health systems among its members, surveyed 257 such providers earlier this week. The poll makes clear that supplies are unsurprisingly imperiled.

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As attempts to clean up after Hurricane Milton are beginning, scientists at the World Weather Attribution project have taken a quick look at whether climate change contributed to its destructive power. While the analysis is limited by the fact that not all the meteorological data is even available yet, by several measures, climate change made aspects of Milton significantly more likely.

This isn't a huge surprise, given that Milton traveled across the same exceptionally warm Gulf of Mexico that Helene had recently transited . But the analysis does produce one striking result: Milton would have been a Category 2 storm at landfall if climate change weren't boosting its strength.

From the oceans to the skies

Hurricanes strengthen while over warm ocean waters, and climate change has been slowly cranking up the heat content of the oceans. But it's important to recognize that the slow warming is an average, and that can include some localized extreme events . This year has seen lots of ocean temperature records set in the Atlantic basin, and that seems to be true in the Gulf of Mexico as well. The researchers note that a different rapid analysis released earlier this week showed that the ocean temperatures—which had boosted Milton to a Category 5 storm during its time in the Gulf—were between 400 and 800 times more likely to exist thanks to climate change.

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Former Twitter executives, including former CEO Parag Agrawal, are urging a court to open discovery in a dispute over severance and other benefits they allege they were wrongfully denied after Elon Musk took over Twitter in 2022.

According to the former executives, they've been blocked for seven months from accessing key documents proving they're owed roughly $200 million under severance agreements that they say Musk willfully tried to avoid paying in retaliation for executives forcing him to close the Twitter deal. And now, as X's value tanks lower than ever— reportedly worth 80 percent less than when Musk bought it—the ex-Twitter leaders fear their severance claims "may be compromised" by Musk's alleged "mismanagement of X," their court filing said.

The potential for X's revenue loss to impact severance claims appears to go beyond just the former Twitter executives' dispute. According to their complaint , "there are also thousands of non-executive former employees whom Musk terminated and is now refusing to pay severance and other benefits" and who have "sued in droves."

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Music publishing companies notched another court victory against a broadband provider that refused to terminate the accounts of Internet users accused of piracy. In a ruling on Wednesday, the conservative-leaning US Court of Appeals for the 5th Circuit sided with the big three record labels against Grande Communications, a subsidiary of Astound Broadband.

The appeals court ordered a new trial on damages because it said the $46.8 million award was too high, but affirmed the lower court's finding that Grande is liable for contributory copyright infringement.

"Here, Plaintiffs [Universal, Warner, and Sony] proved at trial that Grande knew (or was willfully blind to) the identities of its infringing subscribers based on Rightscorp’s notices, which informed Grande of specific IP addresses of subscribers engaging in infringing conduct. But Grande made the choice to continue providing services to them anyway, rather than taking simple measures to prevent infringement," said the unanimous ruling by three judges.

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A few years ago, the idea of running PC games on a Mac, in Linux, or on Arm processors would have been laughable. But the developers behind Asahi Linux—the independent project that is getting Linux working on Apple Silicon Macs—have managed to do all three of these things at once.

The feat brings together a perfect storm of open source projects, according to Asahi Linux GPU lead Alyssa Rosenzweig: the FEX project to translate x86 CPU code to Arm, the Wine project to get Windows binaries running on Linux, DXVK and the Proton project to translate DirectX 12 API calls into Vulkan API calls, and of course the Asahi project's Vulkan-conformant driver for Apple's graphics hardware.

Games are technically run inside a virtual machine because of differences in how Apple Silicon and x86 systems address memory—Apple's systems use 16 KB memory pages, while x86 systems use 4 KB pages, something that causes issues for Asahi and some other Arm Linux distros on a regular basis and a gap that the VM bridges.

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