A newly discovered dwarf planet called 'Ammonite' (2023 KQ14) has been spotted in the outer solar system, and it could be ...

V1298 Tau b, as the planet is called, is a proto-sub-Neptune. With an estimated mass around times our planet, it is smaller than Neptune, which weighs over 17 Earths. The planet is extremely young, ...

SCOTS may be able to catch a glimpse of Pluto this week as it reaches peak brightness. The dwarf planet is set to be at its ...

The celestial body's unusual orbit “implies that something extraordinary occurred" in the early days of the solar system—and ...

Beyond Neptune, a smaller 'ninth' planet has been identified in the Kuiper Belt.

A telescope has discovered a new world on the edge of the Milky Way – potentially confirming the ‘Planet X’ theory. Beyond ...

In 1992, astronomers spotted the minor planet 15760 Albion, the first object ever spotted beyond Pluto and the first official member of the Kuiper Belt. Later, at the turn of the century, astronomers ...

Experimental Propulsion Tech Could Reach Mysterious Planet Beyond Pluto in 10 Years Sedna will make its closest approach to the Sun in 2076, giving us a rare opportunity to visit the planetoid ...

Sedna will make its closest approach to the Sun in 2076, giving us a rare opportunity to visit the planetoid before it drifts off for thousands of years.