The first time you may have heard the term ‘dwarf planet’ was when Pluto got demoted to one in 2006 (RIP). However, we actually have six in our Solar System. Pluto, Ceres, Makemake, Haumea, and Eris ...

Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...

The Solar System's first-of-its-kind finding may be a 90% water planet. Is the dwarf planet, Ceres, holding the possibility ...

Mar. 11, 2025 — A new study presents a compelling new model for the formation of super-Earths and mini-Neptunes -- planets that are 1 to 4 times the size of Earth and among the most common in ...

A weak magnetic field likely attracted matter inward, contributing to the formation of the outer planetary bodies, from ...

When a mudflat crumbles on Earth, or an ice sheet splinters on one of Jupiter's moons (Europa), or an ancient lakebed breaks ...

Astronomers have identified a quartet of small rocky planets orbiting Barnard's star - one of our closest stellar neighbors - ...

For a few evenings around 28 February, every planet in the solar system will be visible in the night sky, thanks to a rare great planetary alignment. Here's how to make sure you don't miss this ...

This discovery by Webb provides strong evidence that the giant planets in HR 8799 formed through core accretion, much like ...

The Solar System is a vast and varied landscape offering an array of planetary and moonscape phenomena unlike anything found on Earth. Among these are ... Read more The post The Solar System’s Most ...

Planets in the solar system. Credit: NASA and ESA / CC BY-SA 4.0 A rare celestial event will unfold on the evening of Friday, Feb. 28, 2025, when seven planets line up in the night sky in a phenomenon ...