Posted by Emily Lakdawalla on 2011/09/30 11:40 CDT
I'm leaving shortly for Nantes, France to attend the 2011 joint meeting of the Division of Planetary Sciences (DPS) of the American Astronomical Society and the European Planetary Science Congress (EPSC). You may be saying, wait, why is the American Astronomical Society having a meeting in France?
Posted by Emily Lakdawalla on 2011/09/29 12:12 CDT
Without a doubt the most exciting events in space in October are Cassini's two, count them, two extremely close flybys of Enceladus, spaced only eighteen days apart, on October 1 and 19 (and followed by a third one on November 6).
Posted by Marc Rayman on 2011/09/29 08:12 CDT
Dawn's fourth anniversary of being in space is very different from its previous ones. Indeed, those days all were devoted to reaching the distant destination the ship is now exploring. Celebrating its anniversary of leaving Earth, Dawn is in orbit around a kindred terrestrial-type world, the ancient protoplanet Vesta.
Posted by Emily Lakdawalla on 2011/09/28 12:28 CDT
Since Cassini currently orbits Saturn within the plane of Saturn's rings, it has lots of chances to catch two or more moons in the same photo. One such "mutual event" happened on September 17, featuring four moons: Titan, Dione, Pan, and Pandora.
Posted by Emily Lakdawalla on 2011/09/27 12:25 CDT
The world watched on Friday as the derelict spacecraft named UARS made its final few orbits around Earth. And then we waited for final word of its reentry location. And waited. And waited.
Posted by Emily Lakdawalla on 2011/09/26 12:03 CDT
If you are reading this and happen to recall an entry that struck you as particularly educational or having a particularly beautiful picture or whatever, I'd very much appreciate it if you could note that in the comments (or by email or Twitter, if you prefer).
Posted by Emily Lakdawalla on 2011/09/24 10:19 CDT
In a now-routine act of obtaining detailed photographs of robots from Earth sitting on the surface of another planet, the HiRISE camera on Mars Reconnaissance Orbiter has captured a view of Opportunity sitting on the rim of Endeavour crater.
Posted by Emily Lakdawalla on 2011/09/23 01:09 CDT
About four years ago I wrote a blog entry about an ESA press release about paper published in Nature that suggested that Saturn's moons Tethys and Dione might have volcanic activity, like Enceladus. A new paper published in Icarus casts doubt on that conclusion.
Posted by Emily Lakdawalla on 2011/09/21 01:40 CDT
Unless you've been living under a rock you've probably heard that a very large Earth-orbiting satellite is going to be reentering Earth's atmosphere soon, and there's a small but nonzero chance of debris coming down where somebody might actually find it.
Posted by Emily Lakdawalla on 2011/09/20 01:58 CDT
When Hayabusa's sample return capsule was first opened and found to be very clean-looking inside, I doubted that there could be enough material for laboratory analysis. JAXA announced later that they scraped about 1500 dust grains from the inside with a teflon spatula, and these likely came from Itokawa.
Posted by Emily Lakdawalla on 2011/09/19 12:46 CDT
This amazing video has already been posted by basically every other space blogger but I can't resist featuring it too, especially because I just realized that it was not made by NASA but instead by a member of the public digging into public NASA archives of image data -- yay for amateurs!
Posted by Louis D. Friedman on 2011/09/19 11:55 CDT
I spent much of the past week attending the Caltech Space Challenge, a student-organized international competition to design a human mission to a Near-Earth asteroid. It was a great week, and one of the most positive, upbeat and hopeful programs I have participated in concerning the future of space exploration.