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

 

First-ever high-resolution Synthetic Aperture Radar image of Enceladus

Posted by Emily Lakdawalla on 2011/12/01 07:22 CST

On the November 6, 2011 flyby of Enceladus -- the third such flyby in just a few weeks -- the Cassini mission elected to take a SAR swath instead of using the optical instruments for once. So here it is: the first-ever SAR swath on Enceladus. In fact, the only other places we've ever done SAR imaging are Earth, the Moon, Venus, Iapetus, and Titan.

Read More »

Pretty pictures & movies: Eye candy from two recent Cassini Enceladus flybys

Posted by Emily Lakdawalla on 2011/10/20 12:35 CDT

Cassini has completed two very close flybys of Enceladus in less than three weeks, one of them just this morning, and the images from that encounter have already arrived on Earth.

Read More »

Saturnlit moon, sunlit fountains

Posted by Emily Lakdawalla on 2011/10/07 06:00 CDT

It's been a week of very heavy science on this blog, so I thought it'd be nice to go into the weekend with a post in which a breathtaking picture speaks for itself, without needing my thousands of words.

Read More »

Some first impressions of EPSC-DPS meeting

Posted by Emily Lakdawalla on 2011/10/03 11:55 CDT

Today they turned on the scientific fire hose at the Division of Planetary Sciences / European Planetary Science Congress meeting happening here in Nantes, France. My brain already feels full and I still have four more days!

Read More »

Pretty pictures: Dancing moons

Posted by Emily Lakdawalla on 2011/09/28 12:28 CDT

Since Cassini currently orbits Saturn within the plane of Saturn's rings, it has lots of chances to catch two or more moons in the same photo. One such "mutual event" happened on September 17, featuring four moons: Titan, Dione, Pan, and Pandora.

Read More »

Tethys and Dione don't seem to be active after all

Posted by Emily Lakdawalla on 2011/09/23 01:09 CDT

About four years ago I wrote a blog entry about an ESA press release about paper published in Nature that suggested that Saturn's moons Tethys and Dione might have volcanic activity, like Enceladus. A new paper published in Icarus casts doubt on that conclusion.

Read More »

Scale solar system presentation slide, a provisional version for you to review

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.

Read More »

Pretty picture: five moons for Cassini

Posted by Emily Lakdawalla on 2011/08/03 09:57 CDT

Explaining how to combine the red, green and blue images from a recent Cassini image session containing five of Saturn's moons: Janus, Pandora, Enceladus, Mimas and Rhea.

Read More »

Origins 2011 conference, part 2

Posted by Frank Trixler on 2011/07/27 10:03 CDT

In this, my second blog on Origins 2011 in Montpellier, France, a conference dedicated to the interdisciplinary research on the origins of life, I aim to provide my impression of the second half of the conference.

Read More »

Pretty movie: Everything in the Saturn system is in motion!

Posted by Emily Lakdawalla on 2011/07/26 06:28 CDT

A few weeks ago a producer for a public television space documentary asked me if I knew of any cool Cassini animations and my answer was, "Ooh, what a great excuse to have some fun digging around in the Cassini data archives." Here is the most fun animation I came up with in response to the request.

Read More »

Lots of great stuff in the latest Cassini data release

Posted by Emily Lakdawalla on 2011/04/13 04:56 CDT

I've got some lovely pictures from Saturn to show you! Every three months, the Cassini mission dumps gigabytes worth of precious Saturn data into the Planetary Data System, and the latest gift came on April 1. This particular pile of data, which was taken between April 1 and June 30, 2010, contains a lot of really terrific moon observations.

Read More »

The curse of living on a geologically active planet

Posted by Emily Lakdawalla on 2011/03/14 02:07 CDT

As the disaster of the magnitude 8.9 Sendai quake of Friday, March 11, at 05:46:23 UTC continues to unfold in Japan, I have been unable to tear my attention away.

Read More »

Door 25 in the 2010 advent calendar

Posted by Emily Lakdawalla on 2010/12/25 12:25 CST

Time to open the twenty-fifth door in the advent calendar. Where in the solar system are these conjoined craters?

Read More »

Mimas wanders in to view

Posted by Emily Lakdawalla on 2010/12/21 02:53 CST

Cassini's busy downlinking photos from yesterday's close pass by Enceladus, including some neat shots of Dione and this one where Mimas skipped briefly in to the field of view.

Read More »

Door 10 in the 2010 advent calendar

Posted by Emily Lakdawalla on 2010/12/10 03:40 CST

Time to open the tenth door in the advent calendar. Where in the solar system is this jumble of bouldery fissures?

Read More »

Figuring out the shape of Mars (and other places)

Posted by Emily Lakdawalla on 2010/01/19 01:31 CST

An amateur named Bernhard Braun ("nirgal" on unmannedspaceflight) has been posting the results from a new piece of software he's developed that generates 3-D models of landscapes from single photos.

Read More »

Opportunity's poking at Marquette Island; Cassini's catching dancing moons

Posted by Emily Lakdawalla on 2009/11/18 04:58 CST

Since tomorrow's class is going to be on playing with raw images from the rovers and Cassini, I've been playing with recent raw images from the rovers and Cassini! I just thought I'd share a couple of the fun items I've been working with.

Read More »

Items 21 - 40 of 44  Previous123Next
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

Spruce Knob (annotated)
Deep Impact Hartley 2 approach animation
NGC 4414 spiral galaxy
Epimetheus and Janus
More Images

Featured Video

Pluto and Pals featuring Emily Lakdawalla!

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!