Found a Killer Asteroid? Who Ya Gonna Call?
Tim Spahr of the Minor Planet Center on Planetary Radio
Posted by Mat Kaplan on 2013/07/08 04:19 CDT
Astronomer Timothy Spahr directs the Minor Planet Center, the global clearinghouse for asteroids, comets and other relatively small objects in the solar system, including moons. He also coordinates the Society's Shoemaker NEO grant program.
Planetary Defense Conference 2013 Part 2
Shoemaker NEO Grants
Posted by Bruce Betts on 2013/05/29 05:25 CDT
Second part of a three part wrap up to April's Planetary Defense Conference: a report on Planetary Shoemaker NEO Grant related activities and people at the Planetary Defense Conference 2013
Planetary Defense Conference 2013 Part 1
State of Research and Videos to Watch
First part of a 3 part wrap up to April's Planetary Defense Conference: a very brief review of the status of research in asteroid threat related fields based on the conference, report on special activities at the conference, and links to video and audio related to the conference.
An Amazing Evening for Planetary Defense
Join us via Planetary Radio and complete video coverage.
Bill Nye, Bruce Betts, Mat Kaplan, Meteorite Man Geoffrey Notkin and stars of planetary science at the Planetary Defense Conference public event in Flagstaff.
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.
JPL's Solar System Dynamics group shows that there is still a possibility that C/2013 A1 (Siding Spring) could hit Mars. But the uncertainty in its position at that time is large -- the closest approach could happen an hour earlier, or an hour later -- so we're a long way from knowing yet whether it will or (more likely) won't impact.
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.
Deep Impact has made the first space-based observations of comet ISON.
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.
A very interesting comet has recently been discovered -- interesting because it will nearly graze the Sun in August 2013 and then approach Earth closely the following December. Whether it will turn out to be a great comet is impossible to know.
Posted by Emily Lakdawalla on 2012/04/03 05:20 CDT
My notes on a two-part presentation by collaborators Jim Richardson and David Minton about the sizes of things in the Kuiper belt, a story they told by looking at Saturn's moons. How does that work? What connects Saturn's moons to the Kuiper belt is craters.
Posted by Emily Lakdawalla on 2011/12/27 10:34 CST
Just a few of the amazing photos of Comet Lovejoy that have been taken from the southern hemisphere over the last few days. Comet Lovejoy is the first Kreutz sungrazer to have been discovered from the ground in 40 years, and after its surprising survival of its passage close to the Sun, it has been putting on a spectacular show in southern skies.
Posted by Emily Lakdawalla on 2011/12/14 09:37 CST
An animation of comet Lovejoy entering the field of view of one of SOHO's Sun-monitoring cameras.