When dinosaur fossils surface at a site, it is often not possible to tell how many millions of years ago their bones were buried. While the different strata of sedimentary rock represent periods of geologic history frozen in time, accurately dating them or the fossils trapped within them has frequently proven to be frustrating.

Fossilized bones and teeth have been dated with some success before, but that success is inconsistent and depends on the specimens. Both fossilization and the process of sediment turning to rock can alter the bone in ways that interfere with accuracy. While uranium-lead dating is among the most widely used methods for dating materials, it is just an emerging technology when applied to directly dating fossils.

Dinosaur eggshells might have finally cracked a way to date surrounding rocks and fossils. Led by paleontologist Ryan Tucker of Stellenbosch University, a team of researchers has devised a method of dating eggshells that reveals how long ago they were covered in what was once sand, mud, or other sediments. That information will give the burial time of any other fossils embedded in the same layer of rock.

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Daphne O. Martschenko and Sam Trejo both want to make the world a better, fairer, more equitable place. But they disagree on whether studying social genomics—elucidating any potential genetic contributions to behaviors ranging from mental illnesses to educational attainment to political affiliation—can help achieve this goal.

Martschenko’s argument is largely that genetic research and data have almost always been used thus far as a justification to further entrench extant social inequalities. But we know the solutions to many of the injustices in our world—trying to lift people out of poverty, for example—and we certainly don’t need more genetic research to implement them. Trejo’s point is largely that more information is generally better than less. We can’t foresee the benefits that could come from basic research, and this research is happening anyway, whether we like it or not, so we may as well try to harness it as best we can toward good and not ill.

Obviously, they’re both right. In What We Inherit: How New Technologies and Old Myths Are Shaping Our Genomic Future , we get to see how their collaboration can shed light on our rapidly advancing genetic capabilities.

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One of the US government’s top scientific research labs is taking steps that could drive away foreign scientists, a shift lawmakers and sources tell WIRED could cost the country valuable expertise and damage the agency’s credibility.

The National Institute of Standards and Technology (NIST) helps determine the frameworks underpinning everything from cybersecurity to semiconductor manufacturing. Some of NIST’s recent work includes establishing guidelines for securing AI systems and identifying health concerns with air purifiers and firefighting gloves. Many of the agency’s thousands of employees, postdoctoral scientists, contractors, and guest researchers are brought in from around the world for their specialized expertise.

Don't just keep up. Get ahead—with our biggest stories, handpicked for you each day.

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A second fueling test on NASA's Space Launch System rocket ended Thursday night, giving senior managers enough confidence to move forward with plans to launch four astronauts around the Moon as soon as March 6.

Unlike the first attempt to load propellants into the SLS rocket on February 2, there were no major leaks during Thursday's practice countdown at Kennedy Space Center in Florida. Technicians swapped seals at the launch pad after hydrogen gas leaked from the rocket's main fueling line earlier this month. This time, the seals held.

"For the most part, those fixes all performed pretty well yesterday," said Lori Glaze, acting associate administrator for NASA's exploration programs. " We were able to fully fuel the SLS rocket within the planned timeline."

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Microsoft Executive Vice President for Gaming Phil Spencer announced he will retire after 38 years at Microsoft and 12 years leading the company's video game efforts. Asha Sharma, an executive currently in charge of Microsoft's CoreAI division, will take his place.

Xbox President Sarah Bond, who many assumed was being groomed as Spencer's eventual replacement, is also resigning from the company. Current Xbox Studios Head Matt Booty, meanwhile, is being promoted to Executive Vice President and Chief Content Officer and will work closely with Sharma.

In his departure note , Spencer said he told Microsoft CEO Satya Nadella last fall that he was "thinking about stepping back and starting the next chapter of my life." Spencer will remain at Microsoft "in an advisory role" through the summer to help Sharma during the transition, he wrote.

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Members of the Make America Health Again movement are in open revolt after founder Robert F. Kennedy Jr. publicly backed President Trump's executive order Wednesday that would increase domestic production of glyphosate—a pesticide the MAHA movement and Kennedy have railed against.

Vani Hari, an ally of Kennedy who goes by "Food Babe," told The Washington Post she was left "speechless" by the move.

"We truly were hoping that this administration would put people over corporate power,” she said, "but this action moves us away from that commitment."

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Shortly after Discord announced that all users will soon be defaulted to teen experiences until their ages are verified, the messaging platform faced immediate backlash .

One of the major complaints was that Discord planned to collect more government IDs as part of its global age verification process. It shocked many that Discord would be so bold so soon after a third-party breach of a former age check partner's services recently exposed 70,000 Discord users' government IDs .

Attempting to reassure users, Discord claimed that most users wouldn't have to show ID, instead relying on video selfies using AI to estimate ages, which raised separate privacy concerns. In the future, perhaps behavioral signals would override the need for age checks for most users, Discord suggested, seemingly downplaying the risk that sensitive data would be improperly stored.

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Federal Communications Commission Chairman Brendan Carr today urged broadcasters to join a "Pledge America Campaign" that Carr established to support President Trump's "Salute to America 250" project.

Carr said in a press release that "I am inviting broadcasters to pledge to air programming in their local markets in support of this historic national, non-partisan celebration." The press release said Carr is asking broadcasters to "air patriotic, pro-America programming in support of America’s 250th birthday."

Carr gave what he called examples of content that broadcasters can run if they take the pledge. His examples include "starting each broadcast day with the 'Star Spangled Banner' or Pledge of Allegiance"; airing "PSAs, short segments, or full specials specifically promoting civic education, inspiring local stories, and American history"; running "segments during regular news programming that highlight local sites that are significant to American and regional history, such as National Park Service sites"; airing "music by America’s greatest composers, such as John Philip Sousa, Aaron Copland, Duke Ellington, and George Gershwin"; and providing daily “Today in American History” announcements highlighting significant events from US history.

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Meta announced today that it will divorce its Horizon Worlds social and gaming service—once promoted as the company's first major step into the metaverse—from its Quest VR headset platform and digital store.

The company says it is now "shifting the focus of Worlds to be almost exclusively mobile." The announcement is also filled with statements like "we're doubling down on the VR developer ecosystem" that are attempting to head off any suggestion that Meta is retreating from the mixed reality space.

This is far from the first signal that big changes are happening with Meta's mixed reality strategy. CNBC reported that Meta has lost $80 billion on investments in Reality Labs, the company's mixed reality division. More than 1,000 Reality Labs employees were laid off in January, but don't misread that as a total closure; more than 15,000 people were working in that part of the organization before the layoffs.

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