A mystery interstellar object discovered last week is likely to be the oldest comet ever seen—possibly predating our solar ...

Major surveys from the past two decades include the SDSS, Kepler, Blanco-DECam, Subaru HSC, TESS, ZTF and Euclid. The Vera Rubin Observatory in Chile has recently finished construction and will soon ...

Four centuries ago, Johannes Kepler established three laws of planetary motion that accurately describe how planets in the solar system orbit the Sun. That might be enough for most; however ...

Kepler was observing planets beyond our Solar System as part of its Observation Campaign 19, which began on August 29.

For the thought that our solar system had planets travelling in circles around the Earth was forever debunked by Kepler and his laws of planetary motion.

New planet in Kepler-51 system discovered using James Webb Space Telescope The unusual system of three 'super puff' planets has at least one more planet, revealed by its gravitational tug on other ...

Scientists analyzed famed astronomer Johannes Kepler’s 1607 sketches of sunspots to solve a mystery about the sun’s solar cycle that has persisted for centuries.

Scientists analyzed famed astronomer Johannes Kepler’s 1607 sketches of sunspots to solve a mystery about the sun’s solar cycle that has persisted for centuries.

German astronomer Johannes Kepler made sketches of sunspots in 1607 from his observations of the sun’s surface — and centuries later, the pioneering drawings are helping scientists solve a solar ...

By Ashley Strickland, CNN (CNN) — German astronomer Johannes Kepler made sketches of sunspots in 1607 from his observations of the sun’s surface — and centuries later, the pioneering ...