Read article: Six of the best for gravitational lens
Six of the best for gravitational lens
A distant galaxy is imaged six times by the strong gravity of a galactic cluster
Read article: Six of the best for gravitational lens
Read article: Mars-sized object probably created the Moon
Mars-sized object probably created the Moon
A planetary projectile could explain the features of the modern Earth and Moon
Read article: Helping ‘big G’ get back on track
Helping ‘big G’ get back on track
New measurements suggest that the gravitational constant is too small
Relativity passes the pulsar test
A nearby pulsar permits the first observation of a key prediction of Einstein's theory
Read article: Into the Antiworld
Into the Antiworld
Dirac's earth-shattering realisation that antimatter exists is played out in a dramatic stage show
Slingshot test for general relativity
The gravitational pull on a spacecraft could be the best test yet of relativity
Read article: The hunt for new dimensions
The hunt for new dimensions
The gravitational attraction between closely spaced objects could reveal 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
