Graphic depicting the orbital resonances of the planets with HD 110067 using data obtained from the European Space Agency's Cheops mission. (Credit: European Space Agency) Orbital resonances are ...

Astronomers have long speculated about the existence of a mysterious planet lurking far beyond Neptune, a world several times ...

The orbital period is the time taken for a planet to make one complete circuit of the star. So, for example, two planets orbiting a star would be in a 2:1 resonance when one planet takes twice as ...

This had the effect of causing the orbits of planets b, c and d to waver, and they crossed through the 8:5 and 5:3 resonances as their orbital periods widened, but were then pushed back via a ...

When you look at each of these five planet's exact orbital periods, they appear to be just a collection of random numbers — 3.23845 days, 6.5577 days, 9.96188 days, 15.23191 days, and 20.7095 days.

The planetary sextuplet is a spectacular scientific find, astronomers say, because all six members of the system circle their star in a harmonious pattern with orbital periods that occur in simple ...

A Canadian astrophysicist who used the orbital patterns of seven newly discovered planets to create music will be bringing his work to the public in a Toronto show that will also allow those with ...

A planet-sized visitor possibly visited the solar system billions of years ago and permanently changed the cosmic neighbourhood by warping the orbital path of four outer planets of the system, a ...

A theory developed to replace dark matter may mean bad news for Planet Nine, a hypothetical as-yet-unseen world in the outer solar system. The odd orbital alignments of icy objects in this region ...