Add Yahoo as a preferred source to see more of our stories on Google. Astronomers have to use indirect evidence, like the explosions of Type Ia supernovae, to investigate the impacts of dark energy.

On Wednesday, Jan. 28, 2026 at 7 pm (PST), Dr. Robert Kirshner (Thirty-Meter Telescope Obs.) will give a free, illustrated, non-technical lecture entitled: “Discovering Dark Energy and New ...

“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 ...

Cosmologists are finally beginning to sketch a coherent picture of the universe we cannot see, using exquisitely detailed maps of galaxies, ghostly light and the large scale structure of space itself.