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Blog Archive

 

Pluto on the Eve of Exploration by New Horizons: A problem of cartography

Posted by Emily Lakdawalla on 2013/07/30 05:44 CDT | 6 comments

Last Thursday at the Pluto Science Conference there was a surprising and interesting talk by Amanda Zangari, who pointed out a serious problem with Pluto cartography.

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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.

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Hubble captures time-lapse of comet ISON

Posted by Jason Davis on 2013/07/05 04:28 CDT | 2 comments

The Hubble Space Telescope captured a series of images showing Comet C/2012 S1 (ISON) plunging toward the sun.

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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

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Planetary Defense Conference 2013 Part 1
State of Research and Videos to Watch

Posted by Bruce Betts on 2013/05/24 05:29 CDT | 2 comments

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.

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New Deep Impact Hartley 2 data set

Posted by Emily Lakdawalla on 2013/05/03 09:59 CDT | 7 comments

Just messing around with a recently released processed version of the Deep Impact Hartley 2 data set.

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An Amazing Evening for Planetary Defense
Join us via Planetary Radio and complete video coverage.

Posted by Mat Kaplan on 2013/04/23 07:12 CDT | 1 comment

Bill Nye, Bruce Betts, Mat Kaplan, Meteorite Man Geoffrey Notkin and stars of planetary science at the Planetary Defense Conference public event in Flagstaff.

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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.

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Comet PANSTARRS from the other side of the Sun!

Posted by Karl Battams on 2013/03/14 05:21 CDT | 8 comments

Comet PANSTARRS is delighting northern hemisphere viewers right now. But it's also big, bright, and beautiful to the STEREO spacecraft.

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Planetary Society Weekly Hangout: Being WISE about asteroids, comets, and brown dwarfs with Amy Mainzer

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.

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Will comet Siding Spring make a meteor shower on Mars?

Posted by Emily Lakdawalla on 2013/03/05 04:34 CST | 6 comments

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.

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Comet to whiz past Mars in October 2014

Posted by Emily Lakdawalla on 2013/02/27 05:36 CST | 22 comments

A recently discovered comet, C/2013 A1 (Siding Spring), is going to be passing very close to Mars on October 19, 2014. Does it pose a risk to spacecraft?

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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.

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Venerable Deep Impact spacecraft has photographed comet ISON

Posted by Emily Lakdawalla on 2013/02/05 05:24 CST | 6 comments

Deep Impact has made the first space-based observations of comet ISON.

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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.

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Comet ISON: 30% chance of awesome, 60% chance of that being wrong

Posted by Bill Gray on 2012/09/25 12:15 CDT | 10 comments

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.

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Hunting Asteroids from a Field in Kansas

Posted by Bruce Betts on 2012/06/15 06:33 CDT

TPS Shoemaker NEO Grant Winner Gary Hug hunts near Earth objects from his back yard in Kansas. NPR's Morning Edition picked up on this fascinating story.

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What Saturn's moons can tell us about comets (Notes from LPSC 2012)

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.

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Lovely Lovejoy pictures

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.

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A recap of Comet Lovejoy

Posted by Jason Davis on 2011/12/22 10:45 CST | 1 comment

A timeline of one of the most memorable solar events in recent memory: the observations by six Sun-observing spacecraft of Comet Lovejoy making its perihelion passage.

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