That makes me skeptical of anyone who claims more than an incomplete and metaphorical understanding of any deep aspect of reality. Dinosaurs have been high in the popularity charts ever since Richard Owen discovered them in 1841. So, of course, has Darwinism ever since the 1860s. Cosmology fascinates people now, just as Darwinism has for more than a century. I don't think modern cosmology carries any real message relevant to ethics.
Cosmologists can hold almost any faith, or none.
The intricate biosphere, of which we're part, has taken several billion years to evolve. Our Earth is a speck in the universe. Planets are common, but those that harbor such complexity could be surpassingly rare, or even unique in those vast spaces. But it is collective human actions that will determine how, or even if, that process unfolds. Being mindful of these potentialities should deepen our commitment to understand our world, and conserve its web of life.