Planets change orbit shape around Neptune’s size. Metal-rich stars help giant planets form. Eccentric orbits suggest chaotic ...

The shape of a planet's orbit is one of its fundamental properties, along with its size and distance from its host star.

“It's remarkable what we've been able to learn about the orbits of planets around other stars using the Kepler Space Telescope,” Petigura said. “The telescope was named after Johannes ...

A supernova is one of the most powerful and mysterious phenomena in the universe. It’s an event that occurs when a star ...

Galileo Galilei, using the newly invented refracting telescope, made and published ... and that Jupiter was orbited by its own moons. Then, Johannes Kepler put forth a solution to the problem ...

German astronomer and mathematician Johannes Kepler (1571–1630) was a central figure in the ... of optics and invented an improved version of the refracting (lens-based) telescope today called the ...