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

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

Earth’s magnetic north is not static. Like an anchorless buoy pushed by ocean waves, the magnetic field is constantly on the move as liquid iron sloshes around in the planet’s outer core.

A doorbell camera on a Canadian home captured rare video and sound of a meteorite hitting Earth as it crashed into a walkway.

Former Formula 1 commentator Will Buxton has made a bold claim about IndyCar after signing a deal to become a FOX pundit.