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Einstein Was Right, Astrophysicists Say
Researchers have confirmed a
long-held prediction of
Albert Einstein's theory of
general relativity, via
observations of a
binary-pulsar star system.
Eclipses in a unique system
... > full story
Black Holes Have Simple Feeding Habits
The biggest black holes may
feed just like the smallest
ones, according to data from
NASA's Chandra X-ray
Observatory and ground-based
telescopes. This discovery
supports the implication of
... > full story
Probing The Dynamics Of The Crab Pulsar And Gravitational Waves
The search for gravitational
waves has revealed new
information about the core
of one of the most famous
objects in the sky: the Crab
Pulsar in the Crab Nebula.
... > full story
Physicists Demonstrate How Information Can Escape From Black Holes
Physicists have provided a
mechanism by which
information can be recovered
from black holes -- and the
first plausible mechanism
... > full story
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Tapping The Early Universe For Secrets Of Fundamental Physics
May 26, 2008 — The future of fundamental physics research lies in observing the early universe and developing models that explain the new data obtained. The availability of much higher resolution data from closer ... > full story -
Gravity Wave 'Smoking Gun' Fizzles: Gravitational Radiation Can Be Produced More Than One Way
April 17, 2008 — Gravitational radiation -- widely expected to provide "smoking gun" proof for a theory of the early universe known as "inflation" -- can be produced by another mechanism, according to physics ... > full story -
Searching For A Tiny New Dimension, Curled Up Like The Universe Before The Big Bang
March 12, 2008 — Researchers are exploring the possibility of an extra dimension -- an imperceptibly small dimension, about one billionth of a nanometer. Researchers say: "This extra dimension would be curled up, in ... > full story -
Weaknesses In Structures -- From Massive Bridges To Nanotechnology -- Identified With New Gadget
March 8, 2008 — A new gadget can identify weaknesses in structures ranging from massive bridge construction to the tiniest elements of nanotechnology no larger than a speck of dust on a pinhead. The deformation ... > full story -
Scientists Propose Test Of String Theory Based On Neutral Hydrogen Absorption
February 1, 2008 — Ancient light absorbed by neutral hydrogen atoms could be used to test certain predictions of string theory, say cosmologists. Making the measurements, however, would require a gigantic array of ... > full story -
3D 'Invisibility Cloak' For Sound?
January 11, 2008 — Contrary to earlier predictions, Duke University engineers have found that a three-dimensional sound cloak is possible, at least in theory. Such an acoustic veil would do for sound what the ... > full story -
Einstein's Biggest Blunder? Dark Energy May Be Consistent With Cosmological Constant
November 28, 2007 — Einstein's self-proclaimed "biggest blunder" -- his postulation of a cosmological constant (a force that opposes gravity and keeps the universe from collapsing) -- may not be such a blunder after ... > full story -
Physicist Defends Einstein's Theory And 'Speed Of Gravity' Measurement
October 4, 2007 — Scientists have attempted to disprove Albert Einstein's theory of general relativity for the better part of a century. After testing and confirming Einstein's prediction in 2002 that gravity moves at ... > full story -
Could Physicists Make A Time Machine? It All Depends On Curving Space-time
August 23, 2007 — Researchers have developed a theoretical model of a time machine that, in the distant future, could possibly enable future generations to travel into the past. The main question is: if, according to ... > full story -
Unravelling The Random Fluctuations Of Nothing
August 6, 2007 — The dream of theoretical physics is to unite behind a common theory that explains everything, but that goal has remained highly elusive. String theory emerged 40 years ago as one of the most ... > full story
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