dark matter
Signal hints at possible interactions between ordinary hydrogen and dark matter in the early universe, but some scientists remain skeptical.
After top dark matter candidate fizzles out, physicists look to more exotic realms.
Images of distorted galaxies provide a new resource for studying dark matter and dark energy.
Dark matter research by Rubin and Ford is a plausible choice for this year’s selection.
Barren bubble-like zones could help untangle universe's mysteries.
Future experiments will continue to search for missing-matter particles.
Metal in ancient shipwrecks has value for both historians and scientists.