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

Here’s what you should know when you go outside to see for yourself: Yes, the planets are indeed lined up across our sky. No, ...

The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...

By tracing the corkscrew wobble of two stars as they move through the sky, the Gaia space mission has discovered one new ...

Space agencies have systems in place to spot, track, and forecast the future orbits of potentially hazardous asteroids.

A new climate modeling study published in the journal Science Advances by researchers from the IBS Center for Climate Physics ...

During late January and into February, six planets are moving in their orbits into our southern sky, visible each evening. This type of event is not rare, though often misunderstood. Popular media is ...

You'll get access to an ad-free website with a faster photo browser, the chance to claim free tickets to a host of events (including everything from Summerfest to the Milwaukee Film Festival), access ...

With it, the New Glenn toted its Blue Ring Pathfinder, a prototype to help satellites maneuver in space, which can tow some 6,600 pounds and travel to different orbits as far as the moon.

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course.

The Grand Canyon in Arizona is one of Earth's natural wonders, carved out over millions of years by the gradual erosion power ...