Dark energy: the decade ahead
The enduring mystery of the accelerating universe
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Read article: Dark energy: the decade ahead
Dark passions
Understanding the accelerating universe is almost as difficult as deciding who should gain credit for its discovery
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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
Cosmic collision explained without dark matter
Physicists suggest modified gravity as an alternative
Read article: Cosmic collision explained without dark matter
Did the early universe have “texture”?
Cold spot could shed light on unification
Gravitation
Robert P Crease explains how Newton's law of gravitation also influenced human nature
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Selene blasts off for the Moon
Japan’s spacecraft will look into the moon’s origin and evolution
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Stringscape
A grand journey through string theory
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A testing time for strings
String theorists must make clear their links with experiment
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String theory under scrutiny
Nancy Cartwright and Roman Frigg ask if falsifiability is a true judge of string theory
Read article: String theory under scrutiny
