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From the College of Natural Sciences
Astronomers Test Einstein in a New Regime Using Pair of Burnt-Out Stars

Astronomers Test Einstein in a New Regime Using Pair of Burnt-Out Stars

The white dwarf stars are so close together that they make a complete orbit in less than 13 minutes.

Pair of Black Holes "Weigh In" at 10 Billion Suns; Most Massive Yet

Pair of Black Holes "Weigh In" at 10 Billion Suns; Most Massive Yet

Astronomers have discovered the most massive black holes to date — two monsters weighing as much as 10 billion suns and threatening to consume anything, even light, within a region five times the size of our solar system.

Astronomers Discover Unusual Multi-Planet Solar System With NASA’s Kepler Spacecraft

Astronomers Discover Unusual Multi-Planet Solar System With NASA’s Kepler Spacecraft

A team of researchers has used NASA's Kepler space telescope to discover an unusual multiple-planet system containing a super-Earth and two Neptune-sized planets orbiting in resonance with each other.

Astronomers Discover Stars Locked in Fatal Dance

Astronomers Discover Stars Locked in Fatal Dance

Astronomers have discovered a pair of burnt-out stars spiraling into one another at breakneck speeds.
Highly Efficient Solar Cells Could Result from Quantum Dot Research

Highly Efficient Solar Cells Could Result from Quantum Dot Research

Conventional solar cell efficiency could be increased from the current limit of 30 percent to more than 60 percent, suggests new research on quantum dots led by chemist Xiaoyang Zhu.

Physicists Prove Einstein Wrong with Observation of Instantaneous Velocity in Brownian Particles

Physicists Prove Einstein Wrong with Observation of Instantaneous Velocity in Brownian Particles

A century after Albert Einstein said we would never be able to observe the instantaneous velocity of tiny particles as they randomly shake and shimmy, so called Brownian motion, physicist Mark Raizen and his group have done so.

Splitting Light Could Improve Telecommunication Networks

AUSTIN, Texas--A new method for speeding and slowing a pulse of light simultaneously could lead to much faster optical telecommunication networks and more efficient optic-based computers. In a paper published in Physical Review A, University of Texas at Austin physicists Pablo Bianucci, Ken Shih and Gennady Shvets report the first ever demonstrati...
Controlling Most Atoms Now Possible

Controlling Most Atoms Now Possible

AUSTIN, Texas—Stopping and cooling most of the atoms of the periodic table is now possible using a pair of techniques developed by physicist Mark Raizen at The University of Texas at Austin. Raizen stopped atoms by passing a supersonic beam through an “atomic coilgun” and cooled them using “single-photon cooling.” The techniques are a major step ...