Jupiter May Have Destroyed The Solar System's First Planets

It is becoming increasingly obvious that our Solar System — with its inner collection of small rocky planets and an outer region buffeted by gas planets — is quite uncommon. According to a remarkable new study, the reason may have to do with Jupiter and an ancient migratory journey that kickstarted the destruction of… » 3/24/15 8:00am Tuesday 8:00am

Exploring Our Solar System At The Speed Of Light Is Remarkably Slow

The speed of light is fast, but the solar system is very, very big. This video explores the intersection of scales by travelling through an idealized version of our solar system at the speed of light, starting at the surface of the sun and heading to Jupiter over 45 minutes. » 2/02/15 3:20pm 2/02/15 3:20pm

How It Would Look If Other Types Of Stars Were Close As The Sun

What would it look like if other stars were as close as the sun? For starters, we may have more than one, and it may be either much bigger or smaller than our current orbital star, as shown in these videos, which explore a hypothetical universe where our sun has been replaced with other stars and our moon with planets. » 1/29/15 9:20am 1/29/15 9:20am

You're Hurtling Through Space at Over a Million Miles an Hour

Remember that animation making the rounds on the internet some months back, the one that depicted "the true orbit of the planets" as a mesmerizing vortex? The animation, while beautiful, was decidedly unscientific. Featured above is a more accurate animation, served up with a hearty helping of exposition from Mika… » 4/06/14 7:35pm 4/06/14 7:35pm

12 Diagrams That Changed How We Understood Our Solar System

These days, we are treated to glorious images of the cosmos through astrophotography and sophisticated three-dimensional visualizations of the universe. In the early centuries of astronomy, however, our visions of the cosmos often took the shape of diagrams—representing what we believed about our solar system. » 3/18/14 10:00am 3/18/14 10:00am

This infographic shows you the insane scale of our solar system

You may have seen graphics comparing the objects in our solar system by size, but this visualization offers a slightly different spin on the theme, by comparing objects by their total mass. Plus, it also features 460 tiny versions of former planet Pluto bouncing off of Earth like a game of interstellar marbles. » 2/27/14 6:00pm 2/27/14 6:00pm

So apparently Voyager 1 left our solar system on July 27, 2012

A re-interpretation of Voyager 1 data is refuelling the debate over whether the spacecraft has truly left the cozy confines of our solar system. According to a new University of Maryland study, it exited the heliosphere last year. The confusion, say the researchers, stems from NASA's failure to account for a… » 8/16/13 4:30pm 8/16/13 4:30pm