Science ❯ Earth Sciences ❯ Geophysics

Earth's Rotation

Timekeeping Timekeeping Systems Historical Changes Tidal Forces Negative Leap Second Day and Night Cycle Variations in Speed Speed Changes Influence of Lunar Tidal Friction Climate Change Effects Study from NASA's JPL and ETH Zurich Climate Change Time Measurement Angular Momentum Conservation Impact on Technology Length of Day Effects of Earth's Rotation Angular Velocity Rotational Speed Measurements Impact of Melting Polar Ice Caps Astronomical Measurements

Climate Change Is Slowing Earth’s Spin at a Rate Unseen in 3.6 Million Years

Researchers tie the millisecond-scale shift to ice-melt–driven sea-level rise that redistributes mass toward the equator.

Corrected Qufu Coordinates Confirm 709 BCE Total Eclipse, Tighten ΔT Estimates

The Moon Is Drifting Farther From Earth by 3.8 Centimeters a Year

Earth Sets Second-Shortest Day of 2025 as Spin Continues to Accelerate

Earth's Spin Breaks Short-Day Records as Timekeepers Halt 2025 Leap Second