Help Shape the Future of Space Exploration

Join The Planetary Society Now  arrow.png

Join our eNewsletter for updates & action alerts

    Please leave this field empty
Blogs

Blog Archive

 

New Horizons workshop, day 1: Chemistry & climate on Pluto & other cold places

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.

Read More »

Gale's not the only Martian crater with an "enigmatic mound"

Posted by Emily Lakdawalla on 2011/08/17 07:33 CDT

Much has been made of the "enigmatic mound" within Gale crater, which will be the target of the Curiosity Mars rover's investigations. The 5,000-meter-thick section rocks in Gale's central mound will be fascinating to study, but the fact that Gale has a central mound that's taller than its rim is not at all unusual on Mars.

Read More »

Galileo's still producing discoveries: A magma ocean within Io!

Posted by Jason Perry on 2011/05/13 11:44 CDT

A fresh report was published online yesterday in Science Express on the discovery of a magma ocean beneath the surface of Io. Big news! This is a paper I've been looking forward to seeing for more than year and half.

Read More »

Mercury's Weird Terrain

Posted by Emily Lakdawalla on 2011/04/19 11:21 CDT

When Mariner 10 flew past Mercury, it caught an immense impact basin lying half in and half out of sunlight, which they named Caloris. Even with only half the basin visible, scientists knew it was one of the largest in the solar system. Geologists had to wait more than 25 years to see the rest of Caloris, and when they did it turned out to be even bigger than they had thought. But the fact that Caloris was only half in sunlight was fortuitous in one sense, because it meant that the spot on Mercury that was exactly opposite the area of the Caloris impact was also partially in sunlight. That spot looks weird.

Read More »

How much is Vesta's geology controlled by its one huge impact feature?

Posted by Emily Lakdawalla on 2011/02/07 02:09 CST

Here's a neat paper just published in Geophysical Research Letters: "Mega-ejecta on asteroid Vesta." In it, Martin Jutzi and Erik Asphaug consider Vesta's shape -- which appears to be dominated by a very large impact crater centered at its south pole -- and ask how much of the great big asteroid Vesta's global appearance is likely to be dominated by the effects of that one large impact.

Read More »

First view of Piton volcano, Reunion Island

Posted by Rosaly Lopes on 2010/10/03 05:40 CDT

There are about 60 volcanologists here at the meeting and we are wondering if the volcano is going to erupt and, if it does, what we will be able to see.

Read More »

Gale Crater Geomorphology Paper - Published!

Posted by Ryan Anderson on 2010/09/16 07:20 CDT

Big news folks! The huge paper that I've been working on for the last couple years is finally, unbelievably, published!

Read More »

Decoding a Titan crater

Posted by Emily Martin on 2010/08/16 01:42 CDT

In response to Emily's entry about finally getting her hands on a subscription to the planetary science journal Icarus, I thought I would report on an article from the most recent issue: Geology of the Selk crater region on Titan from Cassini VIMS observations, by Jason Soderblom and 11 other scientists.

Read More »

Molar Tooth Texture

Posted by Ryan Anderson on 2010/08/12 04:35 CDT

Ok, so remember the weird rock I showed in my Galcier Park geology post?

Read More »

The Geology of Glacier National Park: Part 1

Posted by Ryan Anderson on 2010/08/08 04:35 CDT

Well, the field trip is over and I am happy to say that I was not eaten by any bears. They seemed much more interested in the huckleberries.

Read More »

Big Sky Country

Posted by Ryan Anderson on 2010/07/31 07:20 CDT

Well folks, I'm headed off to Big Sky Country tomorrow (aka Montana)! I'll start the week at the MSL camera team meeting, where I will get all sorts of cool news about the MastCam, MAHLI and MARDI cameras which I will not be able to share with you.

Read More »

Morphology and mineralogy on Mars

Posted by Emily Lakdawalla on 2010/05/05 11:16 CDT

A recent entry by Bethany Ehlmann from the blog of the Planetary Geomorphology Working Group of the International Association of Geomorphologists demonstrates how you can combine the power of different types of data to tease out a rich story of the past history of one spot on Mars.

Read More »

MarsSed 2010 Field Trip Day 2: Stromatolites, Gypsum and Layers

Posted by Ryan Anderson on 2010/04/30 04:35 CDT

We started off Day 2 of the field trip by driving up onto the eroded rocks of what used to be the tidal flats of the ancient reef, between the shore and the continental shelf.

Read More »

MarsSed 2010 Field Trip Day 1: Guadalupe Mountains and Evaporites

Posted by Ryan Anderson on 2010/04/26 05:30 CDT

Hello everyone, I’m back from the MarsSed 2010 meeting in El Paso!

Read More »

Off to MarsSed 2010

Posted by Ryan Anderson on 2010/04/17 05:30 CDT

I’m headed off to El Paso Texas tomorrow! Why? Because that’s where the Mars Sedimentology and Stratigraphy workshop is!

Read More »

Cassini RADAR continues to gaze at Titan

Posted by Jani Radebaugh on 2009/07/27 07:08 CDT

The Cassini spacecraft made its 59th flyby of Titan, Saturn's largest moon, on Friday, July 24, and in the last few hours we have received images from the RADAR instrument in SAR (Synthetic Aperture Radar) mode.

Read More »

Water and the Curiosity Landing Site Candidates

Posted by Ken Edgett on 2009/05/28 10:09 CDT | 2 comments

Water and the Curiosity Landing Site Candidates

Read More »

Mars: "Follow the Water" Is Not Dead

Posted by Ken Edgett on 2009/05/26 11:53 CDT

Mars: "Follow the Water" Is Not Dead

Read More »

Planetary Surface Processes Field Trip: Day 7
The Painted Desert and Petrified Forest

Posted by Ryan Anderson on 2009/03/22 05:20 CDT

Friday was the last day of the field trip, and we spent it at the Petrified Forest National Park.

Read More »

Planetary Surface Processes Field Trip: Day 6
Grand Falls and Sand Dunes

Posted by Ryan Anderson on 2009/03/20 04:35 CDT

Today we visited Grand Falls and the nearby dune field. Grand Falls is especially interesting because it combines many of the processes that are active in shaping planetary surfaces.

Read More »

Items 61 - 80 of 84  Previous12345Next
Facebook Twitter Email RSS AddThis

LightSail

Support LightSail!

Our LightSail test mission was successfully completed and our Kickstarter campaign ended June 26th, raising $1.24 million dollars for LightSail's 2016 solar sailing mission! Miss the Kickstarter campaign, but still want to donate? You can!

I want to help!

Featured Images

Pluto and Charon in color: LORRI + MVIC, June 25 & 27, 2015
Charon's progression: June 22 to July 1, 2015 (third-to-last Pluto day before New Horizons encounter)
Pluto's progression: June 22 to July 1, 2015 (third-to-last Pluto day before New Horizons encounter)
Conical mountain on Ceres
More Images

Featured Video

3D Printed Planetary Logo

Watch Now

Selfies to Space!

Take flight with a selfie on LightSail™ in 2016!

Send a Selfie Now

Join the New Millennium Committee

Let’s invent the future together!

Become a Member

Connect With Us

Facebook! Twitter! Google+ and more…
Continue the conversation with our online community!