The so-called 'planetesimal belts' are filled with tiny millimeter-sized particles created by collisions between comets.

Now, researchers who believe that a ninth planet is actually hanging around our galactic neighborhood have a theory as to how it got there. The scientists think that the yet unseen ninth planet ...

Astronomers have found two planets around two separate stars that are succumbing to their stars’ intense heat. Both are disintegrating before our telescopic eyes, leaving trails of debris similar to a ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

These planets will be spread out across a long arc but two unseen planets will be there as well. Uranus and Neptune, only visible through a telescope, will be part of the planetary alignment in ...

While Pluto was dropped from the solar system’s roster of planets in 2006, a much larger replacement might be on the way. Late last month, California Institute of Technology researchers released ...

The scientists expect that this belt may be being protected by the gravitational influence of unseen planets. Whether there is a planet/planets in the gap between the belts remains to be seen.

These disks provide valuable insights into the formation and evolution of planetary systems, as they can indicate the presence of unseen planets and the dynamics of material within the disk.

They are found between tens of AU and hundreds of AU from their star, and some of the belts are tilted or elongated, as though the gravity of an unseen planet or planets is pulling on them.