Crunch time for pet theory on dark matter
Nature 517, 7535 (2015). http://www.nature.com/doifinder/10.1038/517422a
Author: Davide Castelvecchi
Thought to make up the Universe’s missing matter, WIMPs are running out of places to hide.
Astronomy: Cosmic fog and smog
Nature 517, 7535 (2015). doi:10.1038/517444a
Authors: Molly S. Peeples
It emerges that most of the elements heavier than helium are not found in galaxies, where they can be mixed into future stars and planets. Instead, these elements largely reside far from galaxies in ionized gas and dust particles.