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Archive

Archived posts are listed in reverse chronological order.


  • Apr. 8, 2008 | 13:43 PDT | 20:43 UTC
    Opportunity update: Approaching Cape Verde
    As A. J. S. Rayl reported in her latest rover update, Opportunity is now driving toward Cape Verde, the steep cliff on Victoria crater's rim that borders the shallow ramp that the rover used to enter the crater. Cape Verde looks absolutely gorgeous... More»
  • Apr. 7, 2008 | 15:17 PDT | 22:17 UTC
    Cassini at a close apoapsis at Saturn
    I was browsing the Cassini raw images website today and spotted the three different-filter images necessary to create this color view, so I threw them together. As with any color image made with raw data, the color is, at best, approximate.Click to... More»
  • Apr. 7, 2008 | 11:27 PDT | 18:27 UTC
    Frame a Pluto portrait
    As New Horizons continues its journey (it's now approaching the orbital distance of Saturn, though it's very far from that planet in space), the mission is taking advantage of the recent experience with the Jupiter flyby to plan out the science... More»
  • Apr. 4, 2008 | 11:39 PDT | 18:39 UTC
    Does Venus Express smell volcanoes?
    One of the goals of ESA's Venus Express mission is to hunt down clues to the question of whether Venus is currently volcanically active or not. Although it doesn't have a handy catchphrase, the question of the timing of Venus' volcanism is kind of... More»
  • Apr. 3, 2008 | 16:22 PDT | 23:22 UTC
    Playing around with Cassini images of Janus
    Today's release from the Cassini imaging team was this one of Janus, a still from the sequence that I animated back in February. Just to orient you, Janus is one of Saturn's smaller moons; it orbits just outside the most visible part of the ring... More»
  • Apr. 2, 2008 | 10:26 PDT | 17:26 UTC
    Topography on Titan
    On Monday, with no fanfare, JPL posted the first detailed topographic map of part of Titan. I suppose the map doesn't strictly qualify as a pretty picture, but it is a tremendously important data set. We just don't have a lot of reliable... More»
  • Apr. 1, 2008 | 09:07 PDT | 16:07 UTC
    A new surprise from Mars Global Surveyor
    Although Mars Global Surveyor has fallen silent, scientists are still reporting new discoveries in its images. The latest astounding find from the long-lived orbiter is the familiar shape of another beloved spacecraft.Click to enlarge >Where no man... More»
  • Mar. 31, 2008 | 15:31 PDT | 22:31 UTC
    Some random items: Clouds on Mars, telescopes on Earth, missions to the Moon
    It's been one of those Mondays in which I've been working all day (well, except for a lunchtime shopping trip) but have finished almost nothing, so, with my apologies for a rather light post I'll share just a few interesting items: The first is... More»
  • Mar. 27, 2008 | 20:52 PDT | Mar. 28 03:52 UTC
    Space pens
    When I was a graduate student at Brown I was privileged to interact with all sorts of great planetary scientists, among them several Russians with whom my advisor Jim Head had been working for decades. Alexander "Sasha" Basilevsky especially was a... More»
  • Mar. 27, 2008 | 15:28 PDT | 22:28 UTC
    White Rock through the ages: Mars Express (2004-present)
    When we last visited White Rock on Mars, both Mars Global Surveyor and 2001 Mars Odyssey were mapping the planet. In 2004, another four spacecraft were approaching: the Mars Exploration Rovers Spirit and Opportunity, and, for the first time, two... More»