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 visiting objects that yielded these near-match scenarios ranged from two to 50 times the size of Jupiter and plunged deep into the inner solar system, traveling far beyond Uranus' orbit and ...

"We are the first mission to be able to track space weather events in three dimensions routinely across the solar system." ...

coming close to the present orbit of Mars at a speed of 2.69 kilometers per second. Further simulations on flybys into the inner Solar System revealed one of our own planets might be flung out of the ...

In these simulations, the orbits were warped by the passing of an object between two and 50 times Jupiter's mass, which plunged deep into the inner solar system as it traveled. "This [mass] range ...

The European Space Agency (ESA) released the stunning snapshots, showing the permanently shadowed craters at the top of the least explored planet in the inner solar system. Cameras also captured ...

Each simulation was run for a couple of million years, with the effect on the orbit and tilt of other ... which is still a pretty big planet, our inner Solar System would still remain quite ...

A comet that hasn’t been in the inner solar ... its highly elongated orbit, C/2024 G3 (ATLAS) likely comes from the Oort Cloud, a sphere of comets around the solar system. It reached perihelion ...

The PUNCH constellation of satellites is targeted to launch in late February 2025 into a polar orbit ... make a 3D map of the features they see throughout the corona and inner solar system." ...

In fact, any asteroid in the inner solar system with a mass ... many computer simulations to map the space of possible ways in which the orbit of Mars could evolve in response to ...