How we can test dark energy
Measure galaxy shapes Light is bent by matter, so galaxy shapes are distorted if there’s a clump of dark matter between us and them. Mapping dark matter helps pin down dark energy’s influence. Detect supernovae
If a source of light moves away from us the wavelength stretches. This redshift shows how fast a Type Ia supernova is moving away from us, while its brightness reveals its distance. Examine the CMB
The Cosmic Microwave Background (CMB) is radiation emitted just after the Big Bang. It’s so far provided backing for a universe containing both dark matter and dark energy. Look for new particles
If your lab equipment is sensitive enough you might be able to detect the minuscule effect of a ‘fifth force’ on atoms here on Earth. This small-scale experiment can be done in a short timescale.