The shape of a planet's orbit is one of its fundamental properties, along with its size and distance from its host star.
Planets change orbit shape around Neptune’s size. Metal-rich stars help giant planets form. Eccentric orbits suggest chaotic planet formation.
An international team led by researchers in Japan and Europe has discovered a new multi-planet system around a Sun-like star, ...
Following the 3,000th orbit of NASA's AWE (Atmospheric Waves Experiment) aboard the International Space Station, researchers ...