<p>Two of <a href="http://news.nationalgeographic.com/2015/03/150311-enceladus-astrobiology-life-saturn-space-planet/">Saturn's moons</a>, Mimas (right) and Dione (left), straddle the planet's rings in an image from <a href="http://www.nasa.gov/mission_pages/cassini/main/index.html">Cassini</a>. At over 75,000 miles across, Saturn dwarfs its companions: Mimas is about 250 miles across while Dione is 700 miles in diameter.</p>

Tiny Moons

Two of Saturn's moons, Mimas (right) and Dione (left), straddle the planet's rings in an image from Cassini. At over 75,000 miles across, Saturn dwarfs its companions: Mimas is about 250 miles across while Dione is 700 miles in diameter.

Photograph by NASA/JPL-Caltech/Space Science Institute

Week's Best Space Pictures: Side-On View of Saturn's Ring

Two of the ringed planet's moons make an appearance, and a telescope spies quirky asteroids lined up in a row.

Feed your need for "heavenly" views of the universe every Friday with our picks of the most awe-inspiring space pictures. This week, astronauts peer down on tiny islands and Jupiter's Great Red Spot continues to mystify.

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