Science ❯Astronomy ❯Celestial Mechanics

Gravitational Effects

Passing Stars Moon's Influence Moon's Influence on Earth Tidal Braking Star Motion Tidal Forces

Earth’s Rotation Breaks Records with Successive Millisecond-Short Days

Atomic-clock data confirm July 9 and 10 as the shortest days of 2025, forecasting July 22 to shave another 1.34 ms from a solar day.

Combined ALMA and Gaia Data Reveal Hidden Gas Giant in MP Mus’s Protoplanetary Disk

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