✉news SciencePhysics first seen 2 d ago, last 2 d ago, peak #30
Nine-billion-year-old signal may explain dark energy
Original: A 9-billion-year-old signal could help explain dark energy
Astronomers report detecting a signal roughly nine billion years old that could offer new clues about dark energy, the mysterious force thought to be driving the accelerating expansion of the universe. Signals from this era probe cosmic history when the expansion began speeding up, so measurements like this can test whether dark energy has stayed constant or changed over time, a question at the heart of modern cosmology.
Why now: New research links an ancient cosmic signal to one of the biggest unsolved puzzles in physics, drawing wide scientific and public interest.
Evidence
- A 9-billion-year-old signal could help explain dark energy · ScienceDaily
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