What are some of the theoretical challenges in modeling the long-term evolution of axial tilt, especially for planets in complex multi-body systems?

Jun 16, 2023 ... Earth. Humans have pumped so much groundwater, we've shifted Earth's axis. Changes in the distribution of groundwater around the planet ... Nov 25, 2024 ... Why has Earth's axis tilted by 31.5 inches and what does it mean? ... Humans may have significantly shifted the Earth's rotation by 80 centimetres ... Uranus is tipped nearly on its side; its axis tilt of 97.9° is equivalent to 180° - 97.9° = 82.1°, but with the "north" pole tipped to below the ecliptic plane. Mar 21, 2023 ... A study published in March 2021 found that Earth's axis started shifting drastically in 1995, speeding the movement of the poles and changing ... May 29, 2021 ... The shape of Earth's orbit becomes more or less oval (eccentricity), Earth wobbles as it spins (precession), and Earth's axis changes too (tilt). Mar 20, 2025 ... During the spring and fall equinox, the earth's axis is not tilted towards or away from the sun. Both hemispheres receive the sun's energy ... Oct 4, 2017 ... The axis is an imaginary line through the center of the planet from the North Pole to the South Pole. Rather than straight up and down, Earth's ... Mar 12, 2011 ... An earthquake can't change the axis of rotation, relative to a given inertial reference frame -- that is, the axis of rotation doesn't change relative to the ... Earth's obliquity angle is measured from the imaginary line that runs perpendicular to another imaginary line; Earth's ecliptic plane or orbital plane. Mar 18, 2011 ... Last week's earthquake off Japan's coast may have shortened the length of Earth's days by about 1.26 microseconds and shifted its axis by about 6.5 inches.