Next El Niño could be tipping point for a hotter climate

Pacific heat pulse is temporary, but scientists warn that its climate impacts are not. The Pacific Ocean is a giant climate cauldron, with a powerful heat engine that affects storms, fisheries, and rainfall patterns half a world away, and scientists are watching closely to see if it’s about to…

New robotic control software avoids jamming their joints

Software lets robots learn from each other even if they have different hardware. Switching from one smartphone to another is mostly a smooth procedure. You log into your accounts and your apps, preferences, and contacts should sync to the new hardware. But in the world of robotics, swapping an…

Meet the 19-meter Cretaceous kraken that swam with mosasaurs

Layer by layer, researchers revealed the jaws of an ancient predator. Some 80 million years ago, the late Cretaceous oceans were patrolled by 17-meter mosasaurs, long-necked plesiosaurs, and massive, predatory sharks. For decades, the paleontological consensus was that this was the age of vertebrates; anything without a backbone was…

Carbon nanotube wiring gets closer to competing with copper

While this material degrades over time, it could point to better ones. Shortly after their discovery, carbon nanotubes seemed to be a material wonder. There were metallic and semiconducting forms; they were tiny and incredibly light; and they could only be broken by tearing apart chemical bonds. The ideas…

We still don’t have a more precise value for “Big G”

Such experiments bring “order to the universe, whether or not the number agrees with the expected value.” The gravitational constant, affectionally known as “Big G,” is one of the most fundamental constants of our universe. Its value describes the strength of the gravitational force acting on two masses separated…

US Space Command: Russia is now operationalizing co-orbital ASAT weapons

“They’re putting operational systems up within orbit reach of our high-value satellites.” After several tests of unusual “nesting doll” satellites in low-Earth orbit, Russia is now fielding operational anti-satellite weapons with valuable US government satellites in their crosshairs, the four-star general leading US Space Command said this week. Gen.…