Read article: The hunt for new dimensions
The hunt for new dimensions
The gravitational attraction between closely spaced objects could reveal new dimensions
Read article: The hunt for new dimensions
DIY black holes could supply the missing link
Benchtop 'black holes' could bridge the gap between relativity and quantum mechanics
Read article: 11 key questions about the universe
11 key questions about the universe
US experts identify the hottest topics in particle physics and astronomy
Read article: The search for extra dimensions
The search for extra dimensions
The idea that the universe is trapped on a membrane in some high-dimensional space-time may explain why gravity is so weak, and could be tested at high-energy particle accelerators
Read article: ESA space missions: the next generation
ESA space missions: the next generation
The Bepi-Colombo mission will begin its trip to Mercury, the solar system’s innermost planet, in 2009. The spacecraft is expected to solve some long-standing puzzles about Mercury and provide in...
Joseph Weber 1919 – 2000
In the late 1950s, Weber became intrigued by the relationship between gravitational theory and laboratory experiments. His book, General Relativity and Gravitational Radiation, was published in 1961, ...
Milky Way’s central black hole located
Ghez and colleagues collected infrared images of the nucleus of the Milky Way over a four-year period using the 10-metre Keck telescope on Mauna Kea in Hawaii. The positions of the stars nearest Sagit...
‘Naked’ black holes seen
Black holes are usually detected by the effects of their vast gravitational field on the orbits of nearby astronomical objects such as stars. Naked black holes have no such material near them making i...
Astronomy and physics dominate Science top ten
Confirmation that the universe is flat – expanding at just the right rate not to collapse – came from measurements of ripples in the cosmic background radiation left over from the big bang...
Time unaffected by eclipse
The experiments were carried out by Thomas Udem from the Max-Planck Institute for Quantum Optics in Garching and colleagues. Udem and colleagues placed four atomic clocks – one rubidium clock, t...
