Conflict between theory and observational evidence suggests a missing ingredient in our understanding of the early Universe.
Black hole orbit oscillations shore up general relativity
Oscillations measured in the orbits of a pair of black holes have once again helped confirm predictions made using general relativity.
The dramatic story behind general relativity’s Nobel Prize snub
More than 100 years on after Einstein’s 1921 Nobel Prize, some confusion remains around the committee’s reasons for omitting relativity.
New theory of gravity rethinks the Big Bang
A new approach to understanding gravity helps eliminate some discrepancies inherent in general relativity.
Explaining the Universe’s accelerated expansion without dark energy
A modification to the theory of general relativity makes it consistent with observable astronomical data without the need for dark energy.
How is spacetime altered by entangled particles?
A new thought experiment explores the interface between quantum mechanics and general relativity using the transfer of information.
Einstein-Besso manuscript on the perihelion motion of Mercury sold for record amount
A 1913 manuscript by Albert Einstein and Michele Besso containing a precursor theory to general relativity sells at Paris auction.
Black hole images deliver a deathblow to alternative theory of gravity
Images of the supermassive black holes wouldn’t have been possible if mimetic gravity was the right recipe for gravity.
Could adding extra dimensions help solve the quantum gravity puzzle?
Adding extra dimensions to a theory known as “fuzzy gravity” may help bridge the gap between quantum mechanics and relativity.
Black hole morsels could make Hawking radiation detectable with current telescopes
During the tumultuous mergers of black holes, smaller black holes called morsels could produce detectable Hawking radiation.