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

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

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

New observational data from the James Webb Space Telescope and simulation models have confirmed a new type of planet unlike ...

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

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

Sometimes, it's easy to forget that we're spoiled with one of the best observatories in our solar system, and it's called ...

This month offers incredible views of six planets, including Venus-Saturn conjunction. See the dates for all of 2025's ...

Mars is known as the 'Red Planet.' Learn about its reddish hue, caused by iron oxide, its position as the fourth planet from ...

Mars, Jupiter, Uranus, Neptune, Venus, and Saturn—will align in a rare celestial parade, visible for weeks. A seven-planet ...

"What If is an epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a ...