Gravity Research update ‘Cosmic train wreck’ stumps dark-matter physicists Localized “core” of dark matter is unusual in a galaxy cluster merger Read article: ‘Cosmic train wreck’ stumps dark-matter physicists
Stars and solar physics Feature Testing the elements of the Big Bang Nucleosynthesis measures up Read article: Testing the elements of the Big Bang
Dark matter and energy Research update ‘Seesaw’ explains light dark-energy particles Eight fields would interact to produce a single particle Read article: ‘Seesaw’ explains light dark-energy particles
Telescopes and space missions Research update Dark-energy teams win cosmology prize Perlmutter, Schmidt and colleagues honoured by Gruber Foundation Read article: Dark-energy teams win cosmology prize
Telescopes and space missions Research update New limit placed on photon charge Radio waves from distant galaxies confirm photon is neutral
Education and outreach Opinion and reviews Blog life: Asymptotia Strings and things Read article: Blog life: Asymptotia
Quantum mechanics Research update “Cosmic forgetfulness” shrouds time before the Big Bang If there was a universe before the Big Bang, we may not be able to see all of it
Particles and interactions Research update Director quits Canadian theory institute Howard Burton leaves Perimeter Institute for Theoretical Physics Read article: Director quits Canadian theory institute
Gravity Feature Sounding out the Big Bang How gravitational waves will probe the cosmos Read article: Sounding out the Big Bang
Dark matter and energy Opinion and reviews Blog life: Backreaction Physics distractions and trivia Read article: Blog life: Backreaction
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