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

Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade ...

A European-Japanese spacecraft has beamed back some of the best close-up photos yet of Mercury's north pole as part of only ...

Jupiter's Great Red Spot storm, which usually appears dark-red, can be seen shining a lurid blue color in an ultraviolet ...

Scientists studying samples that NASA collected from the asteroid Bennu found a wide assortment of organic molecules that ...

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

Earth along with some other planets in our solar system have jet streams too. They're like rivers of high-speed atmospheric ...

NASA’s OSIRIS-REx brought back to Earth 121 grams of material from asteroid Bennu. This is the largest sample ever collected ...

The U.S. Postal Service has issued two new stamps featuring iconic images from NASA’s James Webb Space Telescope. The stamps, ...

If you were to perfectly follow the steps in An Idiot's Guide to Making a Solar System, you should eventually find yourself ...