“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 ...

one might just find that the Hubble diagram exhibits jumps in the redshift distance relation, which would be very revealing." More information: Richard Lieu, Are dark matter and dark energy ...

The long and continuing quest to understand dark energy has entered exciting new territory. First discovered in the 1990s, dark energy has come to feel like a familiar face of the cosmos. Astronomers ...

A new cosmic model suggests that singularities could briefly pop into existence, spewing matter and energy into the cosmos, negating the need for dark energy and dark matter.