Posted by Ted Stryk on 2011/01/24 01:01 CST
The annual New Horizons Science Team Meeting was held last week at NASA's Ames Research Center.
As part of a big, ongoing project to make a comparison chart of the dimensions and physical properties of solar system objects I've spent the morning tackling the difficult problem of summarizing the physical characteristics of the biggest things that are out there beyond Neptune.
Posted by Emily Lakdawalla on 2010/11/11 09:13 CST
I attended all day Tuesday of the Division of Planetary Sciences meeting on October 5. The afternoon session on Tuesday was a grab bag about different small objects in the outermost solar system.
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 2010/02/04 02:17 CST
I just posted my writeup of today's press briefing on a new map of Pluto produced from Hubble images. The main conclusion was that Pluto has shown an astonishing amount of changes across its surface between 1994 and 2002 -- more, in fact, than any other solid surface in the solar system.
Posted by Ted Stryk on 2010/01/19 07:55 CST
The New Horizons science team is meeting this week. Ted Stryk was invited to attend the meeting, and he sent the following notes from the first day.
Posted by Ted Stryk on 2008/03/14 03:49 CDT
I spent a large portion of the day at the Lunar and Planetary Institute's library and presented my own poster during the poster sessions, so my coverage of Thursday's sessions is limited.
Posted by Emily Lakdawalla on 2006/11/02 09:35 CST
Alan Stern just posted a detailed update on the status of New Horizons in his PI's Perspective blog on the mission website.
Posted by Emily Lakdawalla on 2005/12/20 05:56 CST
I was browsing around the Web today looking for material to improve the information we have on our site about Pluto, and discovered that the New Horizons mission has just posted their launch press kit.
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
Posted by Amir Alexander on 2005/02/17 11:00 CST
74 years after Clyde Tombaugh discovered Pluto as a faint dot on a pair of photographic plates, a modern group of astronomers made another remarkable discovery. On March 15, 2004, Michael Brown of Caltech, Chad Trujillo of the Gemini Observatory, and David Rabinowitz of Yale announced the discovery of Sedna – the furthest object ever detected in the Solar System.
Posted by Amir Alexander on 2005/02/16 11:00 CST
The discovery of Planet X was announced to the world on March 13, 1930, which marked the anniversary of William Herschel’s discovery of Uranus in 1781 as well as Percival Lowell’s birthday. The observatory’s communiqué emphasized that the discovery was no coincidence, but the vindication of Lowell’s predictions made years before.
Posted by Amir Alexander on 2005/02/15 11:00 CST
Since his teenage years Clyde Tombaugh had been an avid amateur astronomer and a gifted telescope builder. Based on instructions contained in an article from a boy’s Sunday school paper, he built a series of telescopes of increasing power and quality on the family farm.