Blog Archive

Bruce Betts screen shot teaching CSUDH Introductory Astronomy class with Saturn in background.

Intro Astronomy Class 1: Tour of the Solar System

Posted by Bruce Betts on 2014/02/11 05:53 CST | 1 comments

Take a tour of the Solar System in the video of class 1 of Bruce Betts' Introduction to Planetary Science and Astronomy class.

DPS 2013: The fascination of tiny worlds

Posted by Emily Lakdawalla on 2013/10/17 02:27 CDT | 7 comments

In which I summarize Joe Veverka's Kuiper Prize talk at the Division for Planetary Sciences meeting: "Small is NOT Dull: Unravelling the Complexity of Surface Processes on Asteroids, Comets and Small Satellites."

High-phase Phobos and Deimos mutual event from Mars Express

Super cool Phobos and Deimos animations from Mars Express

Posted by Emily Lakdawalla on 2013/10/03 02:17 CDT

I've been delving in to the Mars Express image archive this week, checking out its images of Phobos, and found a couple of really cool time-series of images to assemble into animations.

More fancy Phobos and Deimos photography by Curiosity

Posted by Emily Lakdawalla on 2013/09/24 10:19 CDT

Curiosity looked up after dark and captured more cool photos of Mars' moons. They include Phobos and Deimos passing in the night, and Phobos entering Mars' shadow.

Movie of Phobos and Deimos mutual event, Curiosity sol 351

Movie of Phobos and Deimos from Curiosity: super cool and scientifically useful

Posted by Emily Lakdawalla on 2013/08/16 05:01 CDT | 5 comments

Yesterday, the Curiosity mission released the video whose potential I got so excited about a couple of weeks ago: the view, from Curiosity, of Phobos transiting Deimos in the Martian sky. In this post, Mark Lemmon answers a bunch of my questions about why they photograph Phobos and Deimos from rovers.

Curiosity is copying Cassini's tricks!

Posted by Emily Lakdawalla on 2013/08/03 10:59 CDT | 9 comments

Take a look at this amazing photo, captured by Curiosity from the surface of Mars on sol 351 (August 1, 2013). It is unmistakably Phobos.

Transit of Deimos, Curiosity sol 42 (aligned)

Curiosity catches sunspots along with Phobos and Deimos transits

Posted by Emily Lakdawalla on 2012/10/03 07:15 CDT | 2 comments

Curiosity has been shooting photos of the Sun as Phobos and Deimos cross its face, and -- as far as I can tell -- captured sunspots as well.

Mars Exploration Rovers Update: Opportunity Finds Thrill of Newberries on Matijevic Hill
Sols 3060 - 3088

Posted by A.J.S. Rayl on 2012/10/03 01:58 CDT | 1 comments

On reconnaissance of Matijevic Hill, Opportunity has driven right into another Martian mystery, compete with new kinds of “berries," tiny white veins running through two distinctive outcrops of rock, and orbital data indicating that somewhere here clay minerals are hiding, all of which has put the Mars Exploration Rover (MER) mission back in the science spotlight and made for another September to remember at Meridiani Planum.

Color view of Phobos from Mars Reconnaissance Orbiter

Notes from the Lunar and Planetary Science Conference: A little bit of Phobos and Deimos

Posted by Emily Lakdawalla on 2012/03/22 12:04 CDT | 3 comments

I just sat in the "small bodies" session at the Lunar and Planetary Science Conference, listening to three talks about Phobos. The first was by Abby Fraeman, who looked at data on Phobos and Deimos from the two imaging spectrometers in orbit at Mars. The next talk, by L. Chappaz, was motivated by Phobos-Grunt's mission. It asked: if you grabbed 200 grams of soil from the surface of Phobos, how much of that material would actually have originated on Mars? Then there was a particularly interesting talk that dealt with the question of how Phobos' grooves formed.

Awesome Mars Express view of Phobos and Deimos together

Posted by Emily Lakdawalla on 2009/12/11 11:24 CST

My inbox was exploding this morning with messages about a tremendously cool animation released this morning by ESA's Mars Express team. It shows Phobos crossing Deimos, in what's known as a "mutual event."