Science
Bombs Away
These Robots Are Recovering Dumped Explosives From the Baltic Sea
In the face of seabeds becoming valuable real estate and corroding bombs polluting the oceans, teams are turning to technology to clean up this dangerous and expensive problem.
Bryn Stole
RFK Jr.’s Organic Crusade Has Sparked a Weird Political Realignment
Eating organic is normally associated with tote-wielding liberals, but RFK Jr. is shifting the politics of food in unusual ways.
Matt Reynolds
The Damage to Federal Medical Research Is Already Done
Clinical trials may have to be scrapped, research applications will be pushed back, and unpaid researchers will quickly leave the sector—even if the Trump administration’s funding pause is only temporary.
Jane Smith-Rogers
RFK Jr.’s Senate Testimony Is Haunted by His Track Record
During his confirmation hearings this week, Robert F. Kennedy Jr. said he would promote vaccines as HHS secretary, despite a long history of promoting anti-vax positions.
Emily Mullin
This Man Eats So Much Butter, Cheese, and Beef That Cholesterol Oozes From His Skin
High cholesterol is considered 240 mg/dL. The man’s was over 1,000 mg/dL.
Beth Mole, Ars Technica
Why Dumping Seawater on Blazes Isn’t the Answer to California’s Wildfire Problem
Firefighting planes are dumping water from the ocean on the Los Angeles fires, but using saltwater is typically a last resort.
Patrick Megonigal
Los Angeles Needs to Fireproof Communities, Not Just Houses
After the devastation of the Los Angeles fires, officials are ready to rebuild. But defending against future fires requires thinking about more than buildings.
Matt Reynolds
The Los Angeles Wildfires Have Created Another Problem—Unsafe Drinking Water
Melted plastic pipes and drastic water-pressure drops are potentially leaching toxic chemicals and contaminants into local supplies. Multiple water authorities in north Los Angeles have issued Do Not Drink notices.
Hannah Singleton
These Maps Show Just How Dry Southern California Is Right Now
In early January, soil moisture in much of Southern California was in the bottom 2 percent of historical records.
Ming Pan
Federal Spending Freeze Threatens Ecosystems and Public Safety
A White House memo ordered a halt to federal assistance and a review to align spending with Donald Trump’s priorities. Many legal experts say the order is unconstitutional.
Nicholas Kusnetz
How an Indie Studio Got 400-Plus Games Into a $10 Bundle to Help LA Fire Victims
As wildfires and other effects of climate change threaten the future of the region, devs are pulling together to raise funds for those affected.
Megan Farokhmanesh
The Cause of the LA Fires Might Never Be Known—but AI Is Hunting for Clues
The source of more than half of all wildfires in the Western US remains unknown, so the US Forest Service has teamed up with computer scientists to create tools that can find answers.
Sachi Mulkey
Trump Says He Ended the ‘EV Mandate.’ What Does That Mean?
Policy experts say the implications of Donald Trump’s executive order for EV owners—and the EV-curious—won’t be clear for a while.
Aarian Marshall
Trump’s Day One Executive Orders Will Worsen Climate Crisis
The new president’s orders will take the US out of the Paris Agreement, encourage the extraction and use of fossil fuels, and undo Biden-era policies.
Matt Reynolds
Can You Get Rich Using a Raspberry Pi to Mine Cryptocurrency?
The profit margin on crypto mining is all about the physics of computers and energy conversion.
Rhett Allain
The Spectacular Burnout of a Solar Panel Salesman
He thought he’d make millions of dollars selling solar panels door-to-door. The reality was much darker.
Brendan I. Koerner
Even Trump Can’t Stop America’s Green Transition, Says Biden’s Top Climate Adviser
As he prepares to leave the White House, Ali Zaidi is sober about what’s coming—but says too much has already been built and invested for Donald Trump to undo it.
Matt Reynolds
Trump’s Plan for Elon Musk to Bring the ‘Stranded’ Astronauts Home ASAP Is a Headache for NASA
Bringing forward the return of Butch Wilmore and Suni Williams would leave just a single astronaut operating the US portion of the International Space Station.
Eric Berger, Ars Technica
This Company Wants to Build a Space Station That Has Artificial Gravity
Founded by crypto guru Jed McCaleb, Vast Space will run two missions to the International Space Station and aims to launch its first space station, Haven-1, by the end of 2025.
Emilio Cozzi
See 6 Planets Align on January 21
Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that the next won’t happen until 2040.
Gretchen Rundorff
Check Out These Extraordinary New Images of Mercury
New photos of Mercury taken during the joint European and Japanese BepiColombo mission reveal fascinating details of the small rocky planet.
Sara Carmignani
5 Physics Equations Everyone Should Know
Our physics expert picks his top-five equations, plus a scheme to supply US power needs with a bucket of baseballs. Thanks, Einstein!
Rhett Allain
There’s a New Way to Count Prime Numbers
To make progress on one of number theory’s most elementary questions, two mathematicians turned to an unlikely source.
Joseph Howlett
New Superconductive Materials Have Just Been Discovered
Three exotic new species of superconductivity were spotted last year, illustrating the myriad ways electrons can join together to form a frictionless quantum soup.
Charlie Wood
Viewers of Quantum Events Are Also Subject to Uncertainty
The reference frames from which observers view quantum events can themselves have multiple possible locations at once—an insight with potentially major ramifications.
Anil Ananthaswamy
This Blood Vessel Was Grown in a Lab With Real Human Cells
The FDA recently approved a bioengineered blood vessel, which becomes part of a patient’s body over time. It’s designed to help treat victims of traumatic injuries.
Emily Mullin
Science Has Spun Spider-Man’s Web-Slinging Into Reality
When a US research lab accidentally created a sticky, web-like substance, it turned to Peter Parker and comic-book lore for inspiration on what to do next.
Sophie Charara
An Entire Book Was Written in DNA—and You Can Buy It for $60
What may be the first commercially available book saved in DNA is the latest example of how consumers might use molecular data storage.
Emily Mullin
The World’s First Crispr Drug Gets a Slow Start
The first medical treatment to use Crispr gene editing has been on the market for a year. Its complexity means few patients in the US have received it yet.
Emily Mullin
NASA Wants to Explore the Icy Moons of Jupiter and Saturn With Autonomous Robots
Research and development is underway to create robots that can hunt for signs of life in the vast oceans that exist under the thick ice shells of bodies like Europa.
Shigeyuki Hando
Eight Scientists, a Billion Dollars, and the Moonshot Agency Trying to Make Britain Great Again
The Advanced Research and Invention Agency—ARIA—is the UK's answer to Darpa. But can it put the country back on the scientific map?
Matt Reynolds
The Atlas Robot Is Dead. Long Live the Atlas Robot
Before the dear old model could even power down, Boston Dynamics unleashed a stronger new Atlas robot that can move in ways us puny humans never can.
Carlton Reid
Meet the Next Generation of Doctors—and Their Surgical Robots
Don't worry, your next surgeon will definitely be a human. But just as medical students are training to use a scalpel, they're also training to use robots designed to make surgeries easier.
Neha Mukherjee
How Do You Live a Happier Life? Notice What Was There All Along
Reacquaint yourself with the good things in life by taking the time to appreciate them—and yes, it’s OK to rush through the bad stuff.
Tali Sharot
The Race to Translate Animal Sounds Into Human Language
With big cash prizes at stake—and AI supercharging research—interspecies translation is closer than ever. But what, if anything, would animals want to tell us?
Arik Kershenbaum
An Uncertain Future Requires Uncertain Prediction Skills
Forecasting is both art and science, reliant on both rigor and luck—but you can develop a mindset that anticipates and plans ahead.
David Spiegelhalter
These Rats Learned to Drive—and They Love It
Driving represented an interesting way for neuroscientists to study how rodents acquire new skills, and unexpectedly, rats had an intense motivation for their driving training.
Kelly Lambert
Latest
Ignorance Is Bliss
The Less People Know About AI, the More They Like It
Chiara Longoni, Gil Appel, Stephanie Tully
heads up
A Glowing Metal Ring Crashed to Earth. No One Knows Where It Came From
Eric Berger, Ars Technica