An Opportunity From Above

To commemorate the 12th anniversary of NASA’s Mars Reconnaissance Orbiter at Mars (March 10, 2006) and the still-roving Opportunity, below is an edited version of an article I wrote back in 2011 showing Opportunity imaged by MRO’s HiRISE camera. The eye in the sky sees all…especially when that eye is the HiRISE camera on the…

Dawn Sees Landslides and a Central Ridge in a Young Crater on Ceres

Ceres’ Haulani Crater, with a diameter of 21 miles (34 km), shows evidence of landslides from its crater rim. Smooth material and a central ridge stand out on its floor. This image was made using data from NASA’s Dawn spacecraft when it was in its high-altitude mapping orbit, at a distance of 915 miles (1,470…

A Craterful of Cracks

Here’s a view of a section of a crater on Mars filled with a lacework of bright spidery fractures, acquired on Sept. 20, 2015 with the HiRISE camera aboard NASA’s Mars Reconnaissance Orbiter. The crater is approximately 3 miles (5 km) wide and located in Mars’ north polar region, and its old, infilled interior has undergone countless millennia…

Icy Enceladus Shines in the Latest Images from Cassini

On Wednesday, Oct. 14 2015, Cassini performed its scheduled “E-20” close pass of Enceladus, a 320-mile-wide moon of Saturn that is now famous for the organics-laden ice geysers that fire from cracks in its southern crust. E-20 is the first of a series of three flybys to be performed before the end of 2015, specifically timed to…

Oh What a Relief! Cool 3D Views of the Moon via LROC

Do you have any of those paper 3D viewers around? You know, with the red and blue lenses? If so, pop ’em on and check out the image above from NASA’s Lunar Reconnaissance Orbiter Camera (LROC) showing the crater “Hell Q,” located on the Moon’s southern near side near the brightly-rayed Tycho. You might think…

Mars Gets a Brand New Crater

If you count at least slightly over two years old as “brand new” then yes, this one is certainly that! Seen above in an image taken by the HiRISE camera aboard NASA’s Mars Reconnaissance Orbiter on Nov. 19, 2013, a 100-foot-wide (30-meter) crater is surrounded by bright rays of ejected material and blown-clear surface. Since…

Rhapsody on an Impact Event: Mercury’s Rachmaninoff Crater

Rachmaninoff is a spectacular double-ring basin on Mercury, and this color view is one of the highest resolution color image sets acquired of the basin’s floor. Visible around the edges of the frame is a circle of mountains that make up Rachmaninoff’s peak ring structure. The color of the basin’s floor inside the peak-ring differs…

Why It’s So Hard To Date a Crater

The 13-mile (21-km) wide Giordano Bruno crater on the Moon’s far side was recently imaged by NASA’s Lunar Reconnaissance Orbiter at an angle at a time when the setting sun cast long shadows, creating the high-relief image seen above. It’s known that the brightly-rayed crater is relatively young (see the video below) but how young?…

Hit The Slopes!

Things on the Moon don’t always stay put, as the tracks left by these large boulders show!

Ancient Ice Found in a Frigid Lunar Crater

NASA’s Lunar Reconnaissance Orbiter has found water ice lining a deep crater located on the Moon’s south pole — as much as 22% of the surface material of the crater appears to be composed of ice, NASA and university scientists report.

Mighty Melanthius

The 662-mile-wide Tethys is one of the most heavily cratered worlds in the solar system, tied with sister moons Rhea and Dione. In this recent raw image captured by Cassini on April 14, we can see some of the moon’s larger craters, including Melanthius with its enormous central peak.