The Synthesis of "Earth's wobble"

Discover precession, the slow wobble of Earth's axis. Learn how this celestial motion shifts our pole star and affects long-term climate cycles.

Discover axial tilt, the angle of a planet's rotational axis. Learn why Earth's 23.5-degree tilt is the crucial reason we experience seasons.

Discover the equinox, the twice-yearly event when day and night are nearly equal, marking the start of spring and autumn. Learn why it happens.

Discover Earth, the third planet from the Sun and the only astronomical object known to harbor life. Learn what makes our vibrant world so unique.

Discover orbital eccentricity, the key measure defining the shape of a planet's path from a perfect circle to an extreme ellipse. Learn why it matters.

Discover tidal forces, the gravitational effect that stretches bodies. Learn how the Moon's gravity causes Earth's ocean tides and affects space.

Discover the science behind the solstice, the astronomical event marking the longest or shortest day of the year, driven by Earth's axial tilt.

Discover angular momentum, the property of a rotating object that keeps it spinning. Learn how it shapes everything from ice skaters to galaxies.