An object we thought belonged to the most common category of planet in the galaxy has turned out to be something we've never ...

Emily Simpson has loved space since she was a 10-year-old kid celebrating her birthday at a planetarium. Now a recent Florida ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Plate tectonics give Earth its mountains, earthquakes, continental drift and maybe even helped give rise to life itself. But ...

Earth's temporary asteroid friend last year was a chunk of its real moon that had been blasted into space thousands of years ...

The larger moons of Pluto and Earth likely formed through a collisional process with Charon and our moon, respectively, ...

The solar system consists of 8 planets, including Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Each ...

The solar system may hold a hidden surprise ... Astronomers believe Planet Nine might be 5-7 times Earth’s size. It could orbit the sun 200 times farther than Earth. A single orbit might ...

The asteroid, named 2022 CE2, is estimated by NASA 's Jet Propulsion Laboratory to be about 370 feet across, with JPL's ...

Mars has northern and southern hemispheres like Earth, but their defining characteristics are markedly different, a ...

Astronomers believe that our solar system may still hold surprises ... Astronomers believe that Planet Nine could be 5-7 times the size of Earth and situated more than 200 times farther from ...

Jan. 7, 2025 — A researcher has used advanced models that indicate that the formation of Pluto and Charon may parallel that of the Earth-Moon system. Both systems include a moon that is a large ...