Titan's building blocks may have originated in the cold disk of gas and dust swirling around the sun, not the warm disk that surrounded Saturn when the planet was young.
A bright patch (right, circled) on one of Titan’s northern methane seas, shown as dark areas, appeared in a Cassini spacecraft image taken on July 10, 2013. The patch disappeared by July 16, 2013 and was not visible in earlier images (left).
Cornell, ASI, UA, JPL-Caltech, NASA
The Rosetta spacecraft is closing in on comet 67P/Churyumov–Gerasimenko and is slated to enter into orbit around the comet in August.