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Planetary Society Weekly Hangout: the Giant ALMA Observatory, and Asteroid Tracking
Posted by Bruce Betts on 2013/03/20 01:31 CDT
Bruce Betts, Mat Kaplan, and asteroid tracker Robert Holmes on the Planetary Society Weekly Google Hangout. Mat discussed and showed pictures from his trip to the giant ALMA observatory and we'll be joined by asteroid tracker extraordinaire, Robert Holmes.
Posted by Emily Lakdawalla on 2013/03/14 02:00 CDT
This week I'll be talking with NEOWISE principal investigator Amy Mainzer about moving objects that the WISE mission has spotted both inside and outside our solar system.
Posted by Emily Lakdawalla on 2013/03/01 06:43 CST | 2 comments
Last week I trawled the archives to find all of Galileo's images of asteroid Ida; this week, I turned to Gaspra.
Planetary Society Weekly Hangout: Studying Asteroids from Earth with Andy Rivkin
Posted by Emily Lakdawalla on 2013/02/28 01:25 CST | 5 comments
Emily Lakdawalla's guest this week was Applied Physics Laboratory asteroid astronomer Andy Rivkin. We talked about the menagerie of rocks in the asteroid belt, how many of them travel in pairs and triples, how some of them are surprisingly wet, and how much you can learn about asteroids using Earth-based telescopes.
Galileo got so many more images of Ida than I realized
Posted by Emily Lakdawalla on 2013/02/22 04:14 CST | 1 comments
While writing up the cruise-phase issues of the Galileo Messenger a couple of weeks ago, I came across a fuzzy montage of images of Ida that I had not seen before. So I decided to spend some time digging into the Planetary Data System to see if there were more images to be found. I found lots and lots pictures that I'd never seen before!
Webcast Tonight! Planetary Scientist and Society President Jim Bell
Watch It Live or Later On Demand
Posted by Mat Kaplan on 2013/02/20 07:59 CST
Professor Bell's topic is "Exploring Mars, the Moon, Asteroids, and Comets with Rovers and Landers," and there is no one better to talk about this subject.
Why don't we have any photos of asteroid 2012 DA14 if it came so close?
Posted by Emily Lakdawalla on 2013/02/19 03:13 CST | 2 comments
A frequently-asked question last week was: if asteroid 2012 DA14 is coming so close to Earth, why hasn't anyone taken any pictures of it? Now that 2012 DA14 has whizzed past us, we do finally have some radar pictures of it, but they still may not satisfy everyone.
Posted by Edward Gomez on 2013/02/18 05:14 CST | 4 comments
Mostly the Universe stays unchanged for hundreds, thousands or even millions of years. There are some cases however when some things change really rapidly. Recently I observed one of these rapidly changing, transient phenomena, as asteroid called 2012 DA14. I work for Las Cumbres Observatory and we have been trying to observe this asteroid since 5 February.
BREAKING: Meteor fall causes damage in Russia [UPDATED]
Posted by Emily Lakdawalla on 2013/02/15 01:44 CST | 11 comments
A large meteor streaked through the skies above Russia on the morning of Feb 15th, causing a deafening sonic boom that shattered windows and injured hundreds.
Galileo Messengers: Cruise to Venus, Earth, Gaspra, Earth, Ida, and almost to Jupiter
Posted by Emily Lakdawalla on 2013/02/05 08:40 CST | 2 comments
It's taken me a year to face the emotionally draining task of reading and writing about Galileo's cruise phase as chronicled in the mission's newsletters.
More Chang'E 2 Toutatis flyby images
Posted by Emily Lakdawalla on 2013/01/20 09:52 CST | 6 comments
Last week at a meeting of NASA's Small Bodies Assessment Group (SBAG), Han Li of the Chinese Academy of Sciences gave a lengthy presentation on Chang'E 2. Her presentation included a new sequence of photos from the December 13 Toutatis flyby.
My ever-popular asteroids-and-comets montage, now in color, with bonus Toutatis
Posted by Emily Lakdawalla on 2012/12/18 04:26 CST | 9 comments
My collage of all the asteroids and comets visited by spacecraft is probably the single most popular image I have ever posted on this blog. I've now updated it to be in color and to include Toutatis.
Chang'E 2 imaging of Toutatis succeeded beyond my expectations!
Posted by Emily Lakdawalla on 2012/12/14 05:59 CST | 19 comments
The Chang'E 2 mission flyby of Toutatis succeeded in acquiring images. Oh my goodness, did they succeed. These, in combination with the incredible radar images still being acquired from Goldstone and innumerable optical observations, make Toutatis one of the best-studied asteroids in the solar system.
Asteroid 4179 Toutatis' upcoming encounters with Earth and Chang'E 2
Posted by Emily Lakdawalla on 2012/12/06 12:19 CST | 6 comments
Near-Earth asteroid 4179 Toutatis will be passing within 7 million kilometers of Earth on December 12. Both radio telescopes and the Chang'E 2 spacecraft will be acquiring images.
Images from the long-awaited Dawn Vesta data set
Posted by Daniel Macháček on 2012/11/29 11:55 CST | 4 comments
A few days ago, the Dawn mission finally published their archival data. During the year of delay I often looked with anticipation to the Planetary Data System to check whether or not images were there, and I am delighted that they are finally available. Was the wait worth it? Definitely!
Planetary Radio: A Dawn MIssion Update
And a Video Tour of Marc Rayman's Space Collection
Posted by Mat Kaplan on 2012/11/20 12:36 CST
A Planetary Radio status report from the Dawn mission's Marc Rayman, accompanied by a fascinating video tour of Marc's at-home collection of space information and memorabilia.
Dawn Vesta Data is publicly available (for real this time!)
Posted by Emily Lakdawalla on 2012/11/16 07:08 CST | 2 comments
After a false start earlier this year, the first chunk of Dawn Framing Camera data from Vesta has finally made it to the Planetary Data System. As a first step to understanding the data set, I've built some index pages to these cool images.
Posted by Emily Lakdawalla on 2012/10/24 01:14 CDT | 7 comments
Continuing my writeup of notes from last week's Division for Planetary Sciences meeting: presentations on the risks of future asteroid impacts. How much risk do we face, and what are the appropriate actions to take in the face of that risk?
DPS 2012, Day 5: How to make asteroids crunchy on the outside and soft in the middle
Posted by Emily Lakdawalla on 2012/10/19 07:53 CDT | 2 comments
A summary of just one talk from the Division for Planetary Sciences meeting, by Lindy Elkins-Tanton, which provided a neat explanation for how asteroids can be melted and layered on the inside yet have a primitive-looking exterior.
Deep Impact targets possible 2020 asteroid flyby
Posted by Emily Lakdawalla on 2012/10/05 12:28 CDT | 3 comments
Yesterday, Deep Impact performed a trajectory correction maneuver, firing its thrusters to line up for a flyby seven years from now. Here's a preview of that encounter.
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