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Physics Topics

  • Confounded by Coffee

    2002April 6, 2011

    Here's something to ponder over your next cup of joe: the Physicsof a humble bag of coffee grounds still holds surprises for scientists.

  • Amazing Magnetic Fluids

    2002April 6, 2011

    Astronautsonboard the International Space Stationare studying strange fluids that might one day flow in the veins of Robotsand help buildings resist earthquakes.

  • Floating Flame Balls

    2002April 6, 2011

    Flames do something odd in space: they form tiny almost-invisible balls that might reveal the secrets of combustion here on Earth.

  • Sit. Speak. Good Photon!

    2002April 6, 2011

    Researchers have trapped a laser pulse inside a glass chamber --and released it again intact. Such command of light could lead to mind-boggling new technologies.

  • Tick-Tock Atomic Clock

    2002April 6, 2011

    Scientists are building atomic clocks that keep time with mind-boggling precision. Such devices will help farmers, physicists, and interstellar travelers alike.

  • Was Einstein a Space Alien?

    2005April 6, 2011

    One hundred years ago, Albert Einstein stunned physicists with his out-of-this-world ideas.

  • Space-time Vortex

    2005Sept. 20, 2011

    NASA's Gravity Probe B spacecraft has gathered all the data physicists need to check a bizarre prediction of Einstein's relativity.

  • Picking on Einstein

    2005April 6, 2011

    By measuring the shape of space with exquisite precision, NASA's Gravity Probe B aims to confirm Einstein's theory of relativity ... or provide the first evidence against it.

  • A Pop Quiz for Einstein

    2000April 6, 2011

    Crystal balls rarely have anything to do with science, but soon NASA researchers will be using a set of four to examine one of the last, untested portions of Einstein's General Theory of Relativity. The spheres are heading for Earth orbit on board the Gravity Probe B mission in 2002.

  • What's the Matter with Antimatter

    2000April 6, 2011

    Antimatter -- it may be the ultimate fuel for space travel, but right now it is fleeting, difficult to work with and measured in atoms instead of kilograms or pounds! In this two-part story we'll explore what antimatter is, and how it may be used for space propulsion.