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Geophysics

Earth's Rotation Rotation of the Earth Seismology Earth Rotation Magnetism Earth's Core Magnetic Field Core Dynamics Inner Core Seismic Waves Geophysical Phenomena Timekeeping Earth's Layers Rotation Variations Planetary Rotation Climate Change Earth's Inner Core Natural Cycles Geological Phenomena Geomagnetism Plate Tectonics Rotational Dynamics Planetary Geophysics Core Structure Core Composition Temperature Studies Geological Structures Geomorphology Magnetic Fields Gravity Anomalies

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

Ruling out a 2025 leap second, international timekeepers prepare protocols for a possible negative adjustment by 2029.

Nearly 7,000 Dams Reoriented Earth’s Poles and Lowered Sea Levels

New Projections Confirm Record-Short Days This July and August

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

Earth Could Set Shortest Day Record in July or August 2025