Theory of relativity

• How Einstein's equivalence principle extends to the quantum world (18 Aug 2018)
  
• How to weigh stars with gravitational lensing (28 Jul 2018)
  
• First successful test of Einstein's general relativity near supermassive black hole (Update) (28 Jul 2018)
  
• LIGO and Virgo observatories detect gravitational wave signals from black hole collision (08 Oct 2017)
  
• Explainer: Why gravitational wave researchers won a Nobel (08 Oct 2017)
  
• How strong is the force of gravity on Earth? (07 Oct 2017)
  
• Gravitational waves: First joint LIGO-Virgo detection (04 Oct 2017)
  
• LIGO detects gravitational waves for third time (21 Sep 2017)
  
• First gravitational waves form after 10 million years (21 Sep 2017)
  
• 'Blurred times' in a quantum world (17 Sep 2017)
  
• Still no violation of Lorentz symmetry, despite strongest test yet (16 Sep 2017)
  
• Quantum theory and Einstein's special relativity applied to plasma physics issues (01 Aug 2016)
  
• Gravitational waves detected from second pair of colliding black holes (21 Jun 2016)
  
• Has Stephen Hawking Just Solved a Huge Black-Hole Mystery? (14 Jun 2016)
  
• How spacetime is built by quantum entanglement (03 May 2016)
  
• How can space travel faster than the speed of light? (14 Apr 2016)
  
• Six weighty facts about gravity (11 Apr 2016)
  
• Gravitational waves detected 100 years after Einstein's prediction: LIGO opens new window on the universe with observation of gravitational waves from colliding black holes (15 Mar 2016)
  
• ESA congratulations on gravitational wave discovery (15 Mar 2016)
  
• Photons simulate time travel in the lab – Physics World (26 Jul 2015)
  
• Black holes and the dark sector explained by quantum gravity (26 Jul 2015)