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Rossana Ruggeri, Lecturer and ARC DECRA Fellow, Queensland University of Technology

Cosmic dark energy may be weakening, astronomers say, raising questions about the fate of the universe

KPNO / NOIRLab / NSF / AURAB / Tafreshi

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.

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