Dark energy will almost certainly destroy the universe and everything in it.

Dark energy is without a doubt the weirdest thing in the universe. Despite being present in every corner of the cosmos and dominating its evolution, dark energy is so far outside our best existing theories of physics that we’re still trying to figure out if it’s something in the universe or just a basic property … Continue reading Dark energy will almost certainly destroy the universe and everything in it.

Cosmology, next-gen

In the year 1909, a little-known astronomer named Vesto Slipher began a series of painstaking observations at the Lowell Observatory in Flagstaff, Arizona, in the US. The observatory had been built primarily to look for evidence of Martian canals, but Slipher had set his sights well beyond the Red Planet and its putative inhabitants. His … Continue reading Cosmology, next-gen

Largest-ever map of dark matter

The Dark Energy Survey collaboration has just released 30 new papers from the first three years of their observing run, including the largest-ever map of the distribution of dark matter. We know that ordinary matter makes up just 5% of the universe, while dark energy (which forces the universe to expand at ever-increasing speed) comprises … Continue reading Largest-ever map of dark matter