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

This alignment will give people an opportunity to see multiple planets at once, but the difference will not necessarily be ...

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

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 enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...

Because planets always appear in a line, the alignment isn't anything out of the norm. What's less common is seeing so many ...

The six planets were visible in the days immediately leading up to Jan. 21, and for about four weeks afterward. Mars, Venus, Jupiter and Saturn should be visible to the naked eye. You'll need a ...

Planetary alignments aren't rare, but they can be when they involve six of the eight planets in our solar system.

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

A six-planet alignment or parade will form an arc in the early night sky, peaking in it's visibility Jan. 17-18. We let you ...

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

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