Evoutionary cosmologists have to invoke "dark energy" claiming it makes up 70% of the universe. And like "dark matter," no one has ever seen either of them.
In March 2014, a team of scientists from more than a hundred universities around the world announced during a press conference that they had detected gravitational waves believed to be created by inflation during the very earliest moments after the Big Bang. By January 2015, the claim was recanted because of “no conclusive evidence of primordial gravitational waves.” In fact, it was found the signal detected corresponded mostly to galactic dust.
The origins debate is not just confined to living things but also involves the whole cosmos. Evolution, based on naturalism, it assumes exclusively materialistic forces to explain how the stars, sun, earth, and moon, came to be.