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 ...

Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that ...

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

Nanjing University researchers have confirmed the efficiency of budget-friendly low-configuration spectrometers in retrieving ...

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