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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

This "comet factory" reveals first secrets of planetary formation

Planets have to start out somewhere, and the leading theory is that they begin as dust particles clumping together to form larger and larger building blocks, before finally emerging eons later as full-blown planets. But the exact physics that would allow such clumps to form has long been frustratingly unclear. » 6/09/13 5:00pm 6/09/13 5:00pm

Saturn's moon Phoebe could have been a planet

When it comes to Saturn's moons, Phoebe tends to be overshadowed by its siblings. Titan's size earns her the title of Saturn's biggest moon (and the second-biggest moon in our solar system), while Enceladus boasts those attention-getting fountains of water and ice pouring from its south pole. But new data from the… » 4/29/12 7:30am 4/29/12 7:30am