Axial precession causes Earth to make a full 360° turn on its axis every 25,771 years, while the apsidal precession leads to an additional 360° turn (in the same direction) every ~112,000 years ...

Doppler shifts in the light they emitted revealed that their elliptical orbit was slowly changing orientation in an apsidal precession. Not unheard of. This behaviour is not unheard of. In its orbit ...

Astronomers have discovered a planet that orbits at a 90-degree angle around a rare pair of strange stars. The brown dwarfs produce eclipses of one another, as seen from Earth, making them part of ...

A major challenge in determining the precise influence of orbital variations on glacial cycles lies in the striking similarity between the periodicities of precession (~21,000 years) and the ...

This visualization shows Earth’s axial precession, a wobble in the planet’s rotational axis with a period of about 26,000 years that is induced by tidal forces from the sun and moon.