What is a black hole?
Andy Young explains why not even light can escape from black holes
Read article: What is a black hole?
Read article: What is a black hole?
Galaxy cluster motion seen for the first time
Method could also be used to measure cosmological distances
Read article: Galaxy cluster motion seen for the first time
Astronomers lift the veil on hidden exoplanet
Discovery using transit-time variations is a first
Read article: Astronomers lift the veil on hidden exoplanet
Japanese cosmology centre secures long-term future
Tokyo institute receives $7.5m endowment from US-based Kavli Foundation
Read article: Japanese cosmology centre secures long-term future
Between the lines
Books on physics history, alien life and teaching relativity to your dog, reviewed by Margaret Harris
Read article: Between the lines
Early supermassive black holes could grow it alone
Simulation shows cold gas boosts growth
Read article: Early supermassive black holes could grow it alone
Our favourite pictures of 2011
From Batman under the microscope to dancing black holes
Read article: Our favourite pictures of 2011
Astronomical sense and nonsense
Margaret Harris reviews Hindsight and Popular Astronomy by Alan B Whiting
Read article: Astronomical sense and nonsense
Relativity’s new revolution
David Appell explains why rogue black holes could be cannonballing through the universe
Read article: Relativity’s new revolution
Sun puts relativity to the test
Gravity theories can be examined using solar neutrinos
Read article: Sun puts relativity to the test
