Read article: Universe could have a fifth less mass than current estimates
Universe could have a fifth less mass than current estimates
Galactic-cluster X-rays may not come from hot gases
Read article: Universe could have a fifth less mass than current estimates
Read article: Cosmic collision explained without dark matter
Cosmic collision explained without dark matter
Physicists suggest modified gravity as an alternative
Did the early universe have “texture”?
Cold spot could shed light on unification
Read article: Gravitation
Gravitation
Robert P Crease explains how Newton's law of gravitation also influenced human nature
Read article: Selene blasts off for the Moon
Selene blasts off for the Moon
Japan’s spacecraft will look into the moon’s origin and evolution
Read article: Stringscape
Stringscape
A grand journey through string theory
Read article: A testing time for strings
A testing time for strings
String theorists must make clear their links with experiment
Read article: String theory under scrutiny
String theory under scrutiny
Nancy Cartwright and Roman Frigg ask if falsifiability is a true judge of string theory
Modified gravity fails at long distances
Only short-range modifications to Newton’s law fit planetary orbit data
Read article: ‘Cosmic train wreck’ stumps dark-matter physicists
‘Cosmic train wreck’ stumps dark-matter physicists
Localized “core” of dark matter is unusual in a galaxy cluster merger
