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1.
Synopsis

Seeing into the Void

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Published January 10, 2013
Contrary to the common view, the gravitational lensing from cosmic voids causes a brightening—not a dimming—of background objects, according to new calculations.
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Viewpoint

Finally, results from Gravity Probe B

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Clifford M. Will, Physics 4, 43 (2011) – Published May 31, 2011
Nearly fifty years after its inception, the Gravity Probe B satellite mission delivers the first measurements of how a spinning gyroscope precesses in the gravitational warping of spacetime.
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Synopsis

Tuning in to gravity

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Published April 20, 2011
Tests of an early design for a gravity-wave detector determine sensitivity limits in a new frequency window.
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Synopsis

Better view of a merging pair

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Published January 24, 2011
More realistic simulations of merging binary black holes should help guide experiments designed to detect gravity waves.
5.
Viewpoint

Are black holes really two dimensional?

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Vijay Balasubramanian, Physics 2, 102 (2009) – Published December 7, 2009
The insights of a provocative connection between general relativity and quantum field theory, called the AdS/CFT correspondence, have been extended to rotating black holes that can occur astrophysically.
6.
Focus

The Weight of Light

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Phys. Rev. Focus 16, 1 (2005) – Published July 12, 2005
In 1960 physicists finally verified Einstein’s 1911 prediction that gravity could change light’s frequency. Understanding the effect is essential to modern navigational technology.
7.
Focus

Earth’s Peculiar Neighbors

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Phys. Rev. Focus 4, 16 (1999) – Published September 24, 1999
Physicists have discovered several new types of orbits for near-Earth asteroids, including the possibility of undiscovered satellites of Earth.