Combined from 3 images taken in red, green and blue filters, this color composite image of Enceladus shows the little moon’s fractured terrain, varying from a heavily cratered north polar region to the corrugated texture of its mid-latitudes to the deep twisted grooves of its famous southern “tiger stripes”, the sources of its ice geysers…
Category: Saturn
Frozen Cliffs
One of the newest raw images from Cassini’s latest flyby shows the icy terrain of Saturn’s moon Dione, with steep hills, ridges and the bright face of one of the many deep canyons that meander across its surface. Known as “wispy lines”, these canyon walls expose bright water ice (that makes up about a quarter…
Rings of Light
Viewed from its night side sunlight illuminates Saturn’s atmosphere and rings, creating brilliant arcs of light in this image from Cassini, taken on February 13. Saturn’s shadow darkens the near side of the rings while their distant Sun-facing portion casts its own shadow into the atmosphere, in the bottom half of the image. The Cassini…
Flying Pan
Making a complete orbit in just under 14 hours, the 17-mile-wide shepherd moon Pan cruises around Saturn within the Encke gap in the A ring. In the image above, taken by Cassini on January 8, we can see Pan casting a sliver of a shadow onto the outer edge of the gap as it causes…
Little Sister
111-mile-wide Janus passes in front of the face of her much larger sister Titan in this image from Cassini, taken on March 27. At 3,200 miles wide, Titan is one of the largest moons in the solar system, even larger than the planet Mercury. A thick atmosphere keeps its frigid and gloomy surface permanently hidden…
Now That’s a Moon!
Just released today, this portrait of Saturn’s moon Mimas showcases its striking similarity to the Death Star (pre-proton torpedoes of course). The Cassini imaging team has been hard at work processing the images from last month’s flyby and the results sure don’t disappoint! On February 13 Cassini passed Mimas at a distance of 5,900 miles…
Rhea and the Rings
This is one of those sublime photos from Cassini that just make me smile. Taken on March 24, this raw image shows Rhea, Saturn’s second-largest moon, suspended in orbit in front of the twilight side of Saturn, its rings reduced to a thin ribbon of bands at this viewing angle. The width of the rings…
You say potato, I say Prometheus.
Here’s a nicely processed-and-polished photo of Saturn’s moon Prometheus, fresh from the Cassini imaging center at the Space Science Institute in Boulder, CO. Taken during the spacecraft’s flyby of the F-ring’s shepherd moon earlier this year, this image shows Prometheus’ potato-like shape and heavily cratered surface on its trailing side, dimly illuminated by reflected light…
Just Passing By
It’s been a while since I posted one of these…it’s an animation made up of 16 raw images from the Cassini spacecraft, taken on March 12, showing Saturn’s moons Dione and Titan passing each other. The small, cratered and frozen Dione couldn’t be more different than her much larger, haze-enshrouded sister Titan, but we’re reminded…
The Tao of Iapetus
With a leading side dark as charcoal and trailing side bright white, the 914-mile-wide Iapetus is literally the yin-and-yang of Saturn’s family of moons. The color variation on Iapetus is due to the fine coating of dark material that falls onto its leading hemisphere, possibly sent its way by smaller, distant Phoebe traveling within the…
A Pack of Spokes
Typically, spokes in Saturn’s rings – temporary, shifting bands of material that transect the rings lengthwise – appear as bright streaks when seen from high phase angles but they show up here as subtle dark bands in this low-angle image from Cassini, taken January 27. Some of the brighter rings on the right half of…
Holy Dione
The heavily creased and cratered face of 700-mile-wide Dione is partially lit by the Sun in this image from Cassini, taken on March 4. Some of the moon’s characteristic “wispy lines” can be seen along its sunlit limb…these are the bright, exposed walls of icy canyons caused by ancient tectonic activity. The darker surface material…
Lights in the Dark 