Is Dark Energy Changing Over Time?
Recent studies suggest that dark energy may not be constant over time but could be evolving, with data indicating a decrease in its density over billions of years. This challenges the traditional cosmological constant model and has significant implications for the universe's future, potentially leading to a cold, dark universe rather than catastrophic extremes like the Big Rip or Big Crunch. Future surveys aim to clarify the nature of dark energy and its role in cosmic expansion.