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

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.

to simulate Earth-like exoplanets with two different orbital parameters. For one set, they assigned circular orbits (e = 0), while the others were assigned highly eccentric orbits (e = 0.4)—far ...