Mars-sized object probably created the Moon
A planetary projectile could explain the features of the modern Earth and Moon
Read article: Mars-sized object probably created the Moon
Read article: Mars-sized object probably created the Moon
Helping ‘big G’ get back on track
New measurements suggest that the gravitational constant is too small
Read article: Helping ‘big G’ get back on track
Relativity passes the pulsar test
A nearby pulsar permits the first observation of a key prediction of Einstein's theory
Into the Antiworld
Dirac's earth-shattering realisation that antimatter exists is played out in a dramatic stage show
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Slingshot test for general relativity
The gravitational pull on a spacecraft could be the best test yet of relativity
The hunt for new dimensions
The gravitational attraction between closely spaced objects could reveal new dimensions
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DIY black holes could supply the missing link
Benchtop 'black holes' could bridge the gap between relativity and quantum mechanics
11 key questions about the universe
US experts identify the hottest topics in particle physics and astronomy
Read article: 11 key questions about the universe
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: The search for extra dimensions
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...
Read article: ESA space missions: the next generation
