Sedna

Sedna is a dwarf planet in the outer reaches of the Solar System that is in the innermost part of its orbit; as of 2022 it is 84 astronomical units from the Sun, almost three times farther than Neptune.

Sedna is know as a Trans-Neptunian Object (TNO) and is an icy body.

Discovered in 2003, Sedna orbits Our Sun Every 11,408 Years. At the time of its discovery it was the intrinsically brightest object found in the Solar System since Pluto in 1930.

Scientists are looking into the possibility of sending a probe in 2029. I hope they modify their ideas to include the massive Starship capability's for such a probe. If we don’t take advantage of this opportunity then it may be impossible to reach Sedna for another 11,000+ years.