Picasso, Pits (and other things that start with “P”)

The recently-named Picasso crater on Mercury, shown in the center of this image, is 83 miles wide and features an interestingly-shaped depression in its center that’s thought to have been caused by the collapse of a magma chamber beneath the surface. Features like this are important to planetary scientists because they indicate the existence of…

Sinking the Shot

Alan Shepard may have played some moon golf during his visit in 1971 but even he wouldn’t have been up to par with this course. 😉 This photo shows the trail of a house-sized (33-foot-wide) lunar boulder that has rolled downhill and come to rest inside the rim of a crater. The image was taken…

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…

An “Outie” Crater

This image from the HiRISE camera aboard the Mars Reconnaissance Orbiter shows an “inverted” crater within an ice-rich debris apron just south of a mountain on Mars. Ice deposits beneath and within the soil – recently discovered using ground-penetrating radar – cause the terrain to move, distorting the landforms within it over time. As the…

Deep Impacts

This just in, a late straggler from Cassini’s recent flyby of Mimas. It shows the northern region of the “other side” of Mimas opposite the moon’s signature Herschel crater. The sheer walls of some of the craters near the top left are 2-3 miles high – or deep, depending on how you look at it…

Let’s Go Streaking

Streaks of swirling pastel colors mark eroded, windswept bedrock within a large crater on Mars in this HiRISE image from the Mars Reconnaissance Orbiter. The enhanced colors highlight the differences in surface texture…the original RGB image in approximate true-color can be seen here. The full map-projected enhanced color image of the region can be found…

Details of Rembrandt

Within the 440-mile-wide Rembrandt impact basin on Mercury we find radiating fractures extending across a central plain and a younger sharp-edged crater, the tip of its central peak peeking into the sunlight. This impact basin was discovered by the MESSENGER spacecraft in October of 2008. It is one of the youngest impact basins on Mercury,…

Mountains of the Moon

  Taken by the LROC camera on board the Lunar Reconnaissance Orbiter, this image shows a detailed look at the mountains within Cabeus Crater – the region where the LCROSS’ Centaur stage rocket impacted to send up a plume of water-rich lunar soil. Many of the shadows seen here are permanent fixtures. The Moon’s orbit…

Water On The Moon!

The conclusive results are in….the LCROSS mission has successfully found water on the lunar surface! Although the plume from the satellite’s upper-stage rocket impact into Cabeus crater at the moon’s south pole was not immediately visible, there was still enough ejected material to be analyzed by LCROSS’ instruments. After reviewing the data over the past…

KAGUYA’s Lunar Legacy

On Monday JAXA released more footage taken by the KAGUYA orbiter during its lunar mapping mission. KAGUYA spent several months flying over the moon at altitudes ranging from 10-50km (about 6-30 miles) taking video with its high-definition camera before finally ending its mission and crash landing onto the moon on June 10, 2009. The sequence…

Finding Relief

On September 29, 2009 the MESSENGER spacecraft, soaring 10,000 miles above the northern hemisphere of Mercury, captured this image of the rugged terrain of our solar system’s smallest planet. Sharp hills, undulating ridges and craters of all sizes gouge the surface of Mercury, not only the smallest planet but also the densest and least explored,…

A Rhea View

Here’s an amazingly detailed view of the extensively cratered surface of Rhea, Saturn’s second-largest moon, taken during a particularly close encounter by Cassini on October 13, 2009. About 950 miles wide Rhea is less than a third the size of Titan, Saturn’s largest moon. Unlike Titan, Rhea has no atmosphere at all to speak of…