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171 articles with this tag
Science
NASA's SPHEREx space telescope surveys the entire sky in 102 infrared wavelengths, hunting for clues about the Big Bang, mapping interstellar ice, and...
Science
Positronium is an exotic atom made of an electron and its antimatter twin, the positron. It exists for less than a microsecond before annihilating in...
Science
Multistage rockets solve the fundamental physics problem that makes single-stage-to-orbit nearly impossible, shedding dead weight stage by stage to re...
Technology
Rotating detonation engines harness continuous supersonic explosions in a ring-shaped chamber to generate thrust far more efficiently than conventiona...
Science
The IAU's 2006 definition of a planet stripped Pluto of its status by adding an orbit-clearing criterion, igniting a debate between dynamicists and ge...
Science
Paleontologists reconstruct the length and mass of ancient mega-snakes like Titanoboa and Vasuki indicus from a handful of fossilized vertebrae, using...
Science
Scientists have found blood vessels, proteins, and flexible tissue inside bones millions of years old. Here is how iron chemistry, mineral sealing, an...
Science
Uranium enrichment is the process of increasing the concentration of uranium-235 in natural uranium, enabling both nuclear power and nuclear weapons....
Science
Plasma makes up more than 99% of the visible universe, yet most people have never heard of it. Here's how this superheated, electrically charged state...
Science
Optical vortices are beams of light with spiral wavefronts that carry orbital angular momentum. They could revolutionize quantum communication, boost...
Science
A nuclear meltdown occurs when reactor fuel overheats beyond cooling capacity. Understanding the physics of decay heat, loss-of-coolant accidents, and...
Technology
From table tennis to soccer, robots are using reinforcement learning and high-speed perception to compete against human athletes — a milestone that co...
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