An attempt to corral the discussion of the IAU planet definition in one place on planetary.org, so that we may be free to actually discuss Kuiper belt observations and scientific results on posts elsewhere on this site.
Posted by Bruce Betts on 2014/04/18 06:42 CDT
Explore the worlds beyond Neptune including Pluto, Kuiper Belt Objects and comets in this video of class 10 of Bruce Betts' Introduction to Planetary Science and Astronomy class.
Earlier today I wrote a post about how to calculate the position of a body in space from its orbital elements. I'm trying to get a big-picture view of what's going on in trans-Neptunian space.
Posted by Emily Lakdawalla on 2011/10/04 11:18 CDT
It's been a very full day at the DPS-EPSC 2011 joint meeting. My day was less full than it might have been, because I overslept and missed most of the morning's session. I really needed the rest though so I think it was probably for the best!
Posted by Emily Lakdawalla on 2011/08/30 11:27 CDT
Today and tomorrow I'm attending the New Horizons Workshop on Icy Surface Processes. The first day was all about the composition of the surface and atmosphere of Pluto, Charon, Triton, and other distant places.
Posted by Emily Lakdawalla on 2010/11/08 04:48 CST
Several astronomers pointed their telescope at Eris to watch it pass in front of a background star. Occultations permit precise measurement of the diameters of distant, faint objects, and it turned out that Eris was much smaller than previously thought, so much so that its diameter may turn out to be the same as, or even smaller than, Pluto's.
Posted by Emily Lakdawalla on 2010/10/25 11:18 CDT
An awful lot of the talks in the Pluto session on Tuesday morning, October 5, at the Division of Planetary Sciences meeting spent more time focusing on how bad weather conditions were during the astronomers' attempts to view Pluto as it occulted background stars than they did on any measurements or science that came out from the data.
Posted by Emily Lakdawalla on 2005/09/21 02:28 CDT
Since the discovery of 2003 UB313, larger than Pluto, there's been a lively debate going on in many places about what makes a planet. There's now an article in Nature talking about a proposal that would address the controversy