The smaller of Neptune's new moons, on the other hand, was a much greater challenge. To identify the super-faint Neptunian moon now called S/2021 N1, Sheppard worked with David Tholen of the ...

becoming their irregular moons. These objects are suspected to have a diameter of more than 100 kilometers. Surprisingly, many of these trans-Neptunian objects have unusual orbits that are ...

A team of astronomers have discovered a rather curious exoplanetary system that has two gas giant planets that are messing up each other’s orbit! On of them is 3.8 times the mass of Jupiter and ...

Charon, the largest and most well-studied of Pluto’s five moons, was first visited in 2015 ... and evolution of surface environments on Trans-Neptunian Objects (TNOs) like Pluto and Charon.