Posted by Emily Lakdawalla on 2011/03/31 03:59 CDT
April 2011 will see MESSENGER begin the science phase of its orbital mission at Mercury, and should, I think, also see the start of Dawn's approach observations of Vesta. At Mars, Opportunity is back on the road again, rolling inexorably toward Endeavour. At Saturn, Cassini will continue its focus on Saturn and Titan science.
Posted by A.J.S. Rayl on 2011/03/31 12:00 CDT
The Mars Exploration Rover mission experienced a month of highs tempered by one haunting low as it neared completion of its 87th month of a three-month tour this month. While Opportunity wrapped up its work at the youngest, freshest crater the rovers have explored to date, Spirit remained silent as the point of maximum sunshine for the Martian year came and went, further dimming once high hopes that the rover would phone home and rove on as summer settled on the southern hemisphere of Mars.
Posted by Emily Lakdawalla on 2011/03/30 04:31 CDT
Today the MESSENGER mission held a press briefing to show off some of the first images and other data that are streaming in from the spacecraft, now that it has entered Mercury orbit.
Posted by Emily Lakdawalla on 2011/03/29 04:03 CDT
This is MESSENGER's very first photo from Mercury orbit, a wide-angle view that reaches right to Mercury's south pole, exposing a very tiny sliver of territory not previously seen by spacecraft.
Posted by Mike Malaska on 2011/03/29 11:49 CDT
Some recent high-resolution images from the Lunar Reconnaissance Orbiter Camera (LROC) have revealed large blocks on the lunar surface that show evidence of layers. The layered blocks were seen near the crater Aristarchus, which is a bright crater in the northeast quadrant of the nearside Moon.
Posted by Emily Lakdawalla on 2011/03/28 04:13 CDT
Saturn's raging northern storm has been watched since it began by amateur astronomers, and now Cassini is getting in to the act too. Presumably once astronomers realized the magnitude of what was going on, some of Earth's great observatories were also occasionally pointed at the ringed planet to watch the storm grow.
Posted by Emily Lakdawalla on 2011/03/28 03:59 CDT
Today's Planetary Radio features Sean Solomon on the successful arrival of MESSENGER at Mercury. After checking that out, wander over to the 190th Carnival of Space, hosted this week by Paul Gilster over at Centauri Dreams.
Posted by Emily Lakdawalla on 2011/03/25 03:52 CDT
The Planetary Society is contributing this thing called the Living Interplanetary Flight Experiment (LIFE) to Russia's Phobos sample return mission -- it's basically a sealed puck with dormant microbes inside that'll fly to Mars and back in the return capsule, and biologists will take a look to see what damage the little bugs suffered during their space journey.
Posted by Emily Lakdawalla on 2011/03/25 03:44 CDT
So, it's over. Stardust's last transmission to Earth was yesterday, March 24, 2011 at 23:33 UTC. Its final act was to burn up all of its last remaining fuel, a move intended to help engineers validate their guesses for how much fuel actually remained in the tanks.
Posted by Emily Lakdawalla on 2011/03/24 04:32 CDT
Since Stardust is being decommissioned today I thought it'd be fitting to take a look back at one of its data sets. I hadn't fiddled with the Annefrank data set before, and it was small and easy to deal with.
Posted by Emily Lakdawalla on 2011/03/23 10:28 CDT
What's that in my eye? Must be a piece of stardust that's making my eyes water as I read that Stardust will be given its very last command tomorrow, a command that'll end its long life, but give its builders one more piece of valuable data in the process.
Posted by Emily Lakdawalla on 2011/03/23 05:05 CDT
I hate being the bearer of bad news, but here it is. Amid all the building excitement for Curiosity -- the successes in testing, the delivery of the instruments, the fun of tuning in to Curiosity Cam to peek in on engineers doing their work in preparing the next rover for launch -- I've learned that a much-anticipated (but not required) feature is not going to make it on to the rover.
Posted by Emily Lakdawalla on 2011/03/21 05:00 CDT
Today the Dawn imaging team released a photo from the main camera, the Framing Camera, symbolizing that they're preparing to start Dawn approach science; the other two science instruments, a spectrometer and a neutron detector, are also being turned on and checked out.
Posted by Emily Lakdawalla on 2011/03/21 01:37 CDT
The Jet Propulsion Laboratory has posted a short video showing some recent testing of an engineering model of the Mars Science Laboratory in their outdoor Mars Yard; they're testing the performance of the rover's driving capability over slopes of varying steepness and covered with bedrock, compacted sand, and very loose sand.