Does Pluto have an ocean under its ice? If it doesn't now, did it ever have one? How will we know?
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.
Movie SciFi With Real Science? What a Concept!
Europa Report is available on demand and online, and in theaters on August 2
This week's Planetary Radio features the new indy film that relies on the best available science to create a thrilling and inspiring human mission to Jupiter's moon.
My roundup from notes on the day's presentations on dust in the Pluto system and the surfaces and interiors of Pluto and Charon.
Remembering the Pluto Campaign: A Success Story
The Society Worked for Years to Help Launch a Mission to Pluto
The New Horizons mission to Pluto survived many near-death encounters with cancellation during its development. The Planetary Society worked the whole time to ensure it would launch.
Pluto's moons, formerly known as "P4" and "P5," are now named Kerberos and Styx; I thought I'd help place them into context with a little help from Cassini. Also, Neptune now has a 14th known moon.
Back in 2005 and 2006, when Pluto’s second and third moons (Nix and Hydra) were discovered, searches by astronomers for still more moons didn’t reveal any. So the accidental discovery of Pluto’s fourth moon by the Hubble Space Telescope in mid-2011 raised the possibility that the hazards in the Pluto system might be greater than previously anticipated.
New Horizons might see a Pluto with a northern polar cap, a southern polar cap, or both caps, according to work by Leslie Young.
Last week, I posted an explainer on why Hubble's images of galaxies show so much more detail than its images of Pluto. Then I set you all a homework problem: when will New Horizons be able to see Pluto better than Hubble does? Here's the answer.
How come Hubble's pictures of galaxies billions of light years away are so beautifully detailed, yet the pictures of Pluto, which is so much closer, are just little blobs? I get asked this question, or variations of it, a lot. Here's an explainer.
Pluto is now known to have at least five moons (Charon, Nix, Hydra, P4, and the newly discovered P5), and its burgeoning population might pose a risk to New Horizons during its flyby, three years from now.
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 2011/09/15 02:18 CDT
I'm preparing a talk for the Pacific Astronomy and Telescope Show here in Pasadena on Sunday afternoon at 1:45. I have spent the morning putting together a slide that I have long wanted to have for presentations.
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