We might know that dark matter is everywhere, but we know very little about it. So, what do we understand about this mysterious but critical component of the universe?

Theoretical physicists seem ready to move on from looking at dark matter as unknown particles we've yet to discover, and consider it a side-effect of gravity at cosmic scales.

On further review, the study claiming that the universe is expanding at a steady rate ended up independently proving accelerating expansion.

Planck has given us more precise measurements of how the universe works, but mostly confirms what we know.

An Italian mathematician is trying to replace dark matter observation by playing with models of gravitational measurements.

Two astronomers think they found evidence in the Cosmic Microwave Background Radiation that the amount of dark matter in the universe is far smaller than currently thought.

Add another bizarre, universe-defining darkness to your list.