What can Earth-sized exoplanets teach scientists about the formation and evolution of exoplanets throughout the cosmos? This is what a study recently posted to the arXiv preprint server hopes to ...

OF201, the object belongs to the same all-star family as Pluto: dwarf planets. Its diameter, roughly 435 miles (700 km), is half Pluto’s, ...

Astronomers have uncovered a distant celestial body that may be a new dwarf planet, orbiting the Sun from more than twice the distance of Pluto. Found by researchers at the Institute for Advanced ...

How Many Planets Are There in the Solar System? There are 8 planets in our solar system. The planets orbit the Sun in elliptical trajectories, and they are all different in size, composition, ...

A possible dwarf planet, like Pluto, has been observed in our solar system, according to a preprint published in arXiv. The area of space where this planet was found was previously thought empty.

A Jupiter-like planet orbiting a white dwarf hints at our solar system’s future By Ken Croswell October 13, 2021 More Stories from Science News on Planetary Science ...

In 2006, updated research led to Pluto being controversially demoted to dwarf planet status by the International Astronomical Union. The reasoning was that Pluto's location in the far-flung Trans ...

Its size is estimated to be a bit smaller than Ceres, which is the smallest of the solar system’s five recognised dwarf planets and has a diameter of about 950km. Pluto, the largest of those ...

Its size is estimated to be a bit smaller than Ceres, which is the smallest of the solar system's five recognized dwarf planets and has a diameter of about 950km. Pluto, the largest of those dwarf ...

A dwarf planet must orbit the sun and be mostly round but it has not cleared its orbit of other objects. Cheng said the discovery of 2017 OF201 has implications for hypotheses involving the potential ...