The universe has been expanding ever since the Big Bang almost 14 billion years ago, and astronomers believe a kind of invisible force called dark energy is making it accelerate faster. However, new results from the Dark Energy Spectroscopic Instrument (DESI), released today, suggest dark energy may be changing over time. If the result is confirmed, it may overturn our current theories of cosmology – and have significant consequences for the eventual fate of the universe. In extreme scenarios, evolving dark energy could either accelerate the universe’s expansion to the point of tearing it apart in a “Big Rip” or…
Author: Rossana Ruggeri, Lecturer and ARC DECRA Fellow, Queensland University of Technology
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