Saturn overtakes Jupiter as planet with most moons - BBC News
Planet with most eccentric orbit flashes astronomers with reflected light – Astronomy Now
ViewSpace | Exoplanet Diversity: Orbital Distance
A New World's Extraordinary Orbit Points to Planet Nine | WIRED
Astronomers Have Found Another Possible 'Exomoon' beyond Our Solar System - Scientific American
Solar system planets, order and formation: A guide | Space
What Would it Be Like if Earth Changed its Orbit? » Science ABC
This weird 'whiplash' planet is unlike anything astronomers have ever seen
EarthSky | Meet the Pi planet. It orbits its star every 3.14 days
Newfound Alien Planet Has a Bizarre Looping Orbit - Scientific American
Martian moon's orbit suggests the Red Planet had a ring | Space
Planet Orbits - Space Facts
Do other planets in the solar system have orbital tilt and seasons? | CBC Radio
New Clue to “Planet Nine” – Hubble Pins Down Weird Exoplanet With Far-Flung Orbit
A Super-Earth May Orbit Proxima Centauri, the Closest Star to the Sun
Artist's concept of nearest extrasolar planet to our Solar System | ESA/Hubble
orbit | astronomy | Britannica
For life to form on a planet it needs to orbit the right kind of star
Scientists discover planet orbiting three stars 'like Tattooine' could be hiding an even bigger secret | The Independent
ESO
New discovery: small planets have circular orbits
Astronomers Discover Planet with Largest Orbit Ever | Sci-News.com
File:Planet Nine Orbit.svg - Wikimedia Commons
The Orbit of the Planets. How Long Is A Year On The Other Planets? - Universe Today
Planet 9 location, orbit, distance, name, and black hole theory for the mysterious object
New Study Knocks Theory of Planet Nine's Existence Out of Orbit | Smart News| Smithsonian Magazine
The planets that orbit a backward-spinning star
ESO
