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

NASA's IMAP mission will delve into the mysteries of the heliosphere, mapping its boundaries and studying solar wind ...

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

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

January started out with a meteor shower and now has a planetary alignment in store. Here's what you'll be able to see and ...

The sun, a searing hot sphere of gas primarily composed of hydrogen and helium, boasts surface and outer atmospheric ...

Pine cones are pretty smart for things with no brains, enough so that scientists have copied them to create a unique window ...

With a disposition plan in place, and leveraging practical knowledge and experience, Brian Davenport, vice president, energy ...

The Parker Solar Probe flew within 3.8 million miles of the Sun's surface, the closest any spacecraft has ever gone.

Stunning pictures of Mercury have been published revealing the sunlit plains and possibly icy craters of the smallest planet ...

"BepiColombo's main mission phase may only start two years from now, but all six of its flybys of Mercury have given us invaluable new information about the little-explored planet." ...

A very rare treat is about to grace Earth's night skies.