Concept
Accelerating Universe
Cosmic expansion is speeding up, not slowing.
Observations of distant Type Ia supernovae revealed in 1998 that the universe's expansion is accelerating, implying dark energy.
Overview
Observations of distant Type Ia supernovae revealed in 1998 that the universe's expansion is accelerating, implying dark energy.
See also
Hubble Flow
The general expansion-driven motion of galaxies.
The Big Bang
How everything began, 13.8 billion years ago.
Black Holes
Regions where gravity stops light itself.
Dark Matter
The invisible mass holding galaxies together.
Dark Energy
The mysterious force accelerating the universe.
Light-Year & Astronomical Distances
Measuring the unimaginable.