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Earth's Days Lengthening, But 25-Hour Day 200M Years Off
Earth's day lengthens by 1.7 milliseconds per century due to lunar tides and geological factors, with a 25-hour day expected in 200 million years.
- Scientists reported Earth's rotation is slowing, lengthening the day by 1.7 milliseconds per century, indicating a gradual process over geological time.
- Tidal friction from the Moon primarily drains rotational energy and pushes the Moon outward, while shifts in Earth's core and mantle, glaciers and ice sheets, and atmosphere and large-scale winds redistribute mass and alter rotation.
- Precision measurements, including lunar reflectors and laser ranging, show short-term spin variations and long-term geodetic records since around 2000 indicate acceleration at about 1.33 milliseconds per century.
- No immediate effect on clocks or daily life, but over millennia a longer day could alter circadian rhythms in humans and organisms, affecting agriculture and wildlife with gradual adaptation.
- Models project a 25-hour day in around 200 million years, while paleoclimate records from 1.4 billion years ago and Moon recession measurements are often misrepresented on social media.
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Earth的s rotation is slowly slowing, scientists say, meeting days are getting longer, though the change takes millions of years, grapeg intriguing questions about how time, life and the planet quietly evolve.
·India
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Will Earth have a 25-hour day in the future?
Earth could one day experience 25-hour days because its rotation is slowing — albeit extremely slowly. This slowdown is primarily caused by the gravitational pull of the Moon, which raises tidal bulges in Earth’s oceans. Because these bulges are not perfectly aligned with the Moon, they exert a small braking force on Earth’s rotation
·Mumbai, India
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Total News Sources14
Leaning Left2Leaning Right6Center3Last UpdatedBias Distribution55% Right
Bias Distribution
- 55% of the sources lean Right
55% Right
L 18%
C 27%
R 55%
Factuality
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