Posted by Emily Lakdawalla on 2009/10/15 03:23 CDT
With the last Titan flyby on October 12, Cassini came back to an orbit that's nearly in the equatorial plane, and immediately rewarded us with some fine views of several of the icy moons. Here are a bunch of images of those moons.
Posted by Emily Lakdawalla on 2009/10/14 05:58 CDT
I was debating whether to write anything about a reported fireball that streaked across the sky in the Netherlands at roughly 19:00 local time (17:00 UTC) yesterday, October 13, but seeing this image ended my internal debate.
Posted by Emily Lakdawalla on 2009/10/14 04:06 CDT
Last week, planetary astronomers Anne Verbiscer, Michael Skrutskie, and Doug Hamilton published a paper in Nature succinctly titled "Saturn's Largest Ring." In the paper, they announce the discovery, using the Spitzer infrared space telescope, of a gargantuan, previously unseen ring around Saturn, encompassing the orbit of Phoebe.
Posted by Emily Lakdawalla on 2009/10/13 01:56 CDT
I have just posted four more blog entries from Juan Diego Rodgriguez-Blanco detailing the work conducted during this year's Artic Mars Analogue Svalbard Expedition (AMASE).
Posted by Emily Lakdawalla on 2009/10/12 10:43 CDT
Unmannedspaceflight.com member Astro0 was fiddling around with an interesting-looking sequence of Cassini images when he discovered their purpose -- they were gathered in order to see if Cassini could catch aurorae flaring into being near Saturn's north pole. Cassini sure did!
Posted by Emily Lakdawalla on 2009/10/10 04:47 CDT
The Palomar Observatory adaptive optics image of the crater Cabeus remains the best I've seen from ground-based telescopes of the LCROSS impact site.
Posted by Emily Lakdawalla on 2009/10/09 05:08 CDT
The Lunar Reconnaissance Orbiter Diviner team just released some preliminary views of their data taken during the LCROSS impact, which clearly shows the thermal signature from the crash into the Moon.
Posted by Emily Lakdawalla on 2009/10/09 10:57 CDT
This plot just shows the aggregate radiance in ultraviolet and visible wavelengths -- all wavelengths -- seen by one of LCROSS' spectrometers after the Centaur hit the Moon.
Posted by Emily Lakdawalla on 2009/10/09 10:43 CDT
Here's the sharpest optical image shown today of the Moon, from Palomar Observatory.
Posted by Emily Lakdawalla on 2009/10/09 10:02 CDT
I am pretty sure this image shows the LCROSS impact plume and its shadow as seen from the MMT observatory in Arizona, but as Alan Boyle just pointed out, the time stamps indicate the photos were all taken before the nominal impact time.
Posted by Emily Lakdawalla on 2009/10/09 06:16 CDT
I'm back online and ready to watch LCROSS smash into the Moon this morning!
Posted by Emily Lakdawalla on 2009/10/08 10:55 CDT
LCROSS and its Centaur upper stage have separated successfully, and the LCROSS shepherd spacecraft has braked in order to follow behind the Centaur when both impact the Moon tomorrow.