“Dark energy” is a term scientists use to refer to whatever is causing the universe to expand faster over time. We don’t know exactly what dark energy is—no one has ever directly seen or measured ...

Levi is the director for the Dark Energy Spectroscopic Instrument, DESI, which produced the new map. The instrument consists of 5,000 tiny robots attached to a telescope in Arizona that collects ...

The growing distances between them hinted at forces far beyond what we can see—dark energy and dark matter. As these supernovae dimmed over time, the universe’s expansion became undeniable.

Europe’s Euclid Space Telescope Is Launching a New Era in Studies of the ‘Dark Universe’ The Euclid mission will probe dark energy and dark matter like never before, setting the stage for an ...