In Einstein's Universe, Airplanes and Staircases Are Time Machines
Some experimental optical clocks are so precise that even a small change in elevation or velocity makes them register the passage of time differently
John Matson is a former reporter and editor for Scientific American who has written extensively about astronomy and physics.
In Einstein's Universe, Airplanes and Staircases Are Time Machines
Some experimental optical clocks are so precise that even a small change in elevation or velocity makes them register the passage of time differently
Sean Carroll Entangles Time and Entropy
A timely conversation with physicist Sean M. Carroll about how our one-way trip from the past to the future is entangled with entropy and the origin of the universe
Spice Imports Carry Lots of Filth
Imported seasonings are rife with all sorts of extras
Boom in Finding Dwarf Planets May Be Over
The bonanza in spotting Pluto's peers nears its end
February 2014 Advances: Additional Resources
Additional resources for Advances articles in the February 2014 issue
Fact or Fiction?: Lead Can Be Turned into Gold
Particle accelerators make possible the ancient alchemist’s dream—but at a steep cost
Highlights from Neuroscience 2013
The massive annual meeting of the Society for Neuroscience brought together tens of thousands of researchers exploring the workings of mind and brain
Twitter Trends Help Researchers Forecast Viral Memes
Researchers are forecasting which memes will spread far and wide
Astronomers Puzzle Over Newfound Asteroid That Acts Like a Comet
An oddball cometlike asteroid could explain how rocky bodies develop wispy comet tails—or just add more confusion
Star's Vanishing Act Solves an Astronomical Mystery
A gigantic star in the Whirlpool galaxy has vanished, solving a supernova mystery
Why It Is Impossible to Pinpoint the 1,000th Exoplanet
The list of known exoplanets is growing so long, so fast, that it is becoming difficult to properly appreciate the new discoveries. For those of us who grew up when our solar system accounted for the only nine worlds known in the entire universe, how are we to grasp the fact that astronomers now discover [...]
Book Review: Love and Math
Books and recommendations from Scientific American
Renewable Energy's Hidden Costs
Low-carbon power depends on climate-unfriendly metals
Laser Physicists Levitate Tiny Diamonds for Quantum Experiments
A Supergiant Star Goes Missing, and a Supernova Mystery Is Solved
What once appeared to be an unremarkable star among billions in the Whirlpool Galaxy has vanished in a brilliant supernova
This Video Montage of Saturn’s Rings and Moons Is Simply Gorgeous [Video]
For more than nine years, NASA’s Cassini probe has orbited Saturn, examining its rings and moons in unprecedented detail and sending back images of things and places humans had never seen.
Curiosity Rover Samples Air for a Taste of Mars History
Early data from the rover teases out new details of Mars’s atmosphere and how it changed over billions of years
Big Baby: Astronomers Zoom In on Birth of Very Massive Star
A new telescope array reveals a gas cloud forming a star perhaps 100 times as massive as the sun
Star Entangled with Its Giant Planet Experiences Hyperactive Magnetic Cycle
The star Tau Boo’s magnetic cycle is at least 10 times faster than the sun’s
A Star's Last Breath
Supernova dust fell to Earth in Antarctic meteorites
Frothy Physics: The Math of Foams
A new mathematical model describes the complex evolution of bubbly foams
Voyager 1 Returns Surprising Data about an Unexplored Region of Deep Space
Particle Pals: Neutrino Experiment Shows Protons and Neutrons Pairing Up
The first physics results from MINERvA shed light on subtle nuclear behavior
Explore Mars for Yourself with this Billion-Pixel Image from the Curiosity Rover