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Physics
  • Stars ablaze in other skies
    A new study suggests that a surprising number of universes, even those with laws of physics different from those in our universe, can still support stars.
  • Invisible hand, and a quick one at that
    God doesn’t play dice, Einstein said in his critique of quantum theory. But any alternative theory to quantum mechanics would require certain quantum events to influence each other 10,000 times faster than the speed of light, physicists have shown.
  • Building 'The Matrix'
    Simulating new materials could help in building them — but only quantum simulators could fully model reality. A team reports a first step in realizing quantum simulation.
  • Watching the northern lights form
    Scientists may have solved the mystery of what triggers the events that spark the northern and southern lights.
  • Quantum physics makes water different
    The length of bonds connecting water molecules could demonstrate quantum effects and help explain some of water’s weirdness.
  • Decoding the Quantum Mystery
    An essay by Tom Siegfried, SN's Editor in Chief, explores how signals from space to Earth could establish the reality of Einstein's worst fear.
  • Insightful Light
    Raman spectroscopy may offer doctors, dentists and forensic scientists a better tool for molecular detection.
  • Seeing the smallest atom
    Electron microscopes can now image single atoms of hydrogen.
  • Large Hadron Collider
    When the Large Hadron Collider powers up this fall, protons moving at almost the speed of light will collide with energies high enough, physicists hope, to solve matter’s biggest mysteries.
  • Left in the cold
    An optical trap lets atoms in but not out, and it can be used to study matter at ultracold temperatures.
  • Life's code in soap
    The mathematics of soapy water yields some clues to the origin of the genetic code.
  • Suction hunters
    Scientists reveal new details on how extendable jaws help fish capture prey.
  • Small, But Super
  • How they shine
  • When Worlds Collide
  • Slippery when dry
    Surfaces that mimic the back of an African beetle can collect water from fog.
  • Catching the cell in action
    A light microscope with high resolution may enable scientists to view the 3-D structures within living cells.
  • Phlegmatic molecules
    Time-lapse snapshots of molecules show that they change shapes less often than theory predicted.
  • Less is more
    Researchers have shown that a grip that’s too tight can be counterproductive, especially on a microscopic object — but the findings could apply to fields ranging from ecology to sociology.
  • Gödel, Escher, Chopin
    Musical theorists see inuitive links between musical chords and geometries.
  • Neutron vision
    A new neutron detector might help identify smuggled radioactive materials.
  • Too speedy for gravity?
    A new analysis suggests that five different spacecraft gained more speed as they flew past Earth than can be accounted for by Einstein's theory of gravitation.
  • Black Hole of Light: Laser pulses create model of event horizon
    Physicists have created the optical analog of a black hole's surface of no return, a setup that could help test whether actual black holes glow.
  • Birds network too
    Starlings in a flock adjust their trajectories to those of their closest neighbors, which helps the flock stay together when under attack.
  • Extreme Measures
    Physicists use atom interferometry to measure gravity and other forces with unrivaled precision, and the technique could potentially guide airplanes and uncover buried caches of oil and diamonds.
  • Scanner Darkly: Tiny venetian blinds enhance radiography
    Microscopic gratings that select scattered X rays might improve luggage screening and cancer detection.
  • Supercool, and Strange
    Scientists tracking H2O's highs and lows are finding new clues as to how and why the familiar substance is so odd. Recent research, for example, suggests that water may exist in two distinct liquid phases at ultralow temperatures.
  • Dusty Fireball: Can lab-made blob explain ball lightning?
    Artificial cousins of ball lightning contain microscopic particles, just like a model says they should. With video.
  • Bathtub Optics: Bending light also shifts it sideways
    When light bends at an interface, it also shifts depending on its polarization. With animation.
  • Tiptoe acrobats get it just right
    Physicists have found that a water-skating insect leaps off the water surface by applying just the right amount of force. With video.
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