How does a planet’s size influence its orbit around its parent star? This is what a recent study published in the Proceedings of the National Academy of Sciences hopes to address as a team of ...

Earth’s elliptical path around the Sun does more than keep the planet in a stable orbit. Because that path is not a perfect circle, the distance between Earth and the Sun changes throughout the year, ...

Earth on Tuesday made its closest approach to the sun, an annual celestial event that happens to occur at the start of the new year. The planet follows an elliptical orbit around the sun, rather than ...

A newly discovered exoplanet three times bigger than Jupiter has been discovered orbiting its star in a bizarre, elliptical orbit, slingshot-style — and astronomers are excited. While elliptical ...

Earth’s annual orbit around the Sun is not always perfectly circular; instead, it displays variations in what is known as eccentricity — in which the planet’s orbit varies between a more-circular and ...

Over a year after the NVS-02 navigation satellite failed to reach its intended orbit, the Indian Space Research Organisation (Isro) has revealed what caused the mission setback and the corrective ...