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

Scientists suggest an interstellar visitor may have altered planetary orbits in our Solar System, reshaping trajectories of ...

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

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

The James Webb Space Telescope has provided groundbreaking insights into a new type of exoplanet, fundamentally different ...

The seven planets will not be perfectly aligned, but will appear in an arc across the sky due to their orbital plane in the ...

The solar system consists of 8 planets, including Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Each planet has its own unique characteristics, such as size, composition ...

Planet X, also called Planet Nine, is a hypothetical planetary body seven times the mass of Earth lurking behind Pluto. If ...

A powerful new tool comes online this year that could help astronomers locate the mysterious planet hiding somewhere beyond ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

Saturn, the sixth planet from the Sun, is one of the most breathtaking sights in our solar system. With stunning visuals ...

Astronomers believe Planet Nine might be 5-7 times Earth’s size. It could ... discussions about the solar system’s complexity. Advisory Alert: It has come to our attention that certain ...