The climate on such a world must be beyond bizarre. A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away. The planet, known as HD ...

The Falcon 9's upper stage, meanwhile, will carry the 21 Starlink satellites to low Earth orbit, deploying them there about 65 minutes after liftoff. Related: Starlink satellite train: how to see ...

an indefatigably defiant pop-culture fringe lord who bent the world and altered our orbit, diffusing our natural albedo and forcing uncertainty into our daylit materiality. That’s one way to think ...

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.