Transit timing variations are changes in a planet’s orbital timing caused by gravitational interactions with nearby planets.

An international team of astronomers has reported the discovery of two exoplanets orbiting a nearby star known as HD 101581.

All three of orbital cycles — called ... The African Humid Period exemplifies the dramatic climate transitions that our planet experiences as a result of subtle changes in the Earth's orbit.

Additionally, researchers can calculate a planet’s surface temperature from the world’s orbital period and its star’s temperature. Since its launch in 2009, NASA's Kepler mission has used ...

For one orbital period of the Perseid particles, you have 10 revolutions of Jupiter and four of Saturn in the same time. The fact that these two planets’ orbital periods are whole number multipl ...

Nicknamed "TIDYE-1b" by researchers, the new planet has been shown to have an orbital period of 8.83 days, according to a paper published Thursday in Nature. It has a radius about 10.7 times ...

These planets are typically characterized by their small size, proximity to their stars, and extremely short orbital periods. TOI-3261 b is one of only four known exoplanets in this category.

The graph shows how the orbital speed of a planet ... a planet at the same rate as the planet. A geostationary satellite orbiting Earth has a period of 24 hours. satellites take 24 hours to ...