LightSail-A has successfully launched!

Track the Mission

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

 

Voyager 1 revisited: Io and Europa transiting Jupiter

Posted by Björn Jónsson on 2013/01/22 06:04 CST

What is the highest resolution global Jupiter mosaic that includes a satellite transit that can be assembled from Voyager images? Satellite transits are especially beautiful when the resolution is high enough for some details to be visible on the satellites so I decided to check this. And I was remarkably lucky.

Read More »

What We're Fighting For

Posted by Casey Dreier on 2012/11/13 01:48 CST

We're fighting for the restoration of NASA's planetary sciences budget to return to its 2012 level. What does that get us? New financial analysis from our sources in the scientific community provides us a glimpse.

Read More »

A couple of gems from the archives

Posted by Emily Lakdawalla on 2012/09/10 11:07 CDT | 2 comments

We're still working on migrating content from the old to the new website. This week, that means I am looking, one by one, through some great amateur-processed space images.

Read More »

In Honor of JUICE, a New View of Europa

Posted by Ted Stryk on 2012/05/07 05:30 CDT | 2 comments

To celebrate ESA's selection of the JUICE mission to Jupiter, Ted Stryk produced a new global view of Europa from Galileo data.

Read More »

Pretty pictures: Voyager 2 at Jupiter

Posted by Emily Lakdawalla on 2012/03/02 01:22 CST

Here are two perfect examples of Voyager 2's amazing untapped treasures.

Read More »

Checking up on Jupiter and Saturn

Posted by Emily Lakdawalla on 2012/02/10 01:51 CST

It's amateur astronomers, not professionals, who are shouldering the burden of constant monitoring of the weather on Jupiter and Saturn. What's going on these days in the outer solar system?

Read More »

Book Review: Atlas of the Galilean Satellites, by Paul Schenk

Posted by Emily Lakdawalla on 2011/11/18 12:59 CST

Not many subjects remain for which it is possible to assemble everything that we know about it in one book. Even for those subjects for which our knowledge is limited, knowledge seems always to be expanding exponentially. This is not true, however, for the Galilean satellites of Jupiter.

Read More »

Is Europa's ice thin or thick? At chaos terrain, it's both!

Posted by Emily Lakdawalla on 2011/11/17 04:32 CST | 6 comments

Among Europa scientists there are two warring factions: the thick-icers and the thin-icers. The question is how thick is the ice shell that overlies Europa's subsurface ocean (the existence of which pretty much everyone agrees on).

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 »

New Horizons Day 2: Tectonic features on icy worlds

Posted by Emily Lakdawalla on 2011/09/09 01:05 CDT

The second day of the New Horizons Workshop on Icy Surface Processes was about geology and geophysics. This long post just covers the first talk of that day.

Read More »

Update: Phobos and Jupiter and its moons!

Posted by Emily Lakdawalla on 2011/06/20 03:53 CDT

Remember that neat picture and movie of Phobos passing by Jupiter that I posted last week? Several people asked me where Jupiter's moons were, and I just assumed that they weren't visible. I was wrong; Mars Express spotted Jupiter's moons along with the planet and Mars' moon!

Read More »

Europa on the ropes

Posted by James Wray on 2011/06/11 01:10 CDT

For now, Mars continues to eclipse Jupiter's moon Europa (shown here to scale) in NASA's flagship mission plans, but not in its appeal to many planetary scientists.

Read More »

Mercury: a moon-scale body

Posted by Emily Lakdawalla on 2011/03/17 06:15 CDT

As I wait for the MESSENGER Mercury Orbit Insertion webcast to start, I thought I'd fiddle with some images to point out that Mercury is a bridge between the scales of planets and the scales of moons.

Read More »

LPSC 2011: Day 4: Ted Stryk on icy moons and The Moon

Posted by Ted Stryk on 2011/03/17 11:22 CDT

Here are Ted Stryk's notes from the sessions he attended in the afternoon of Thursday, March 10, at the 42nd Lunar and Planetary Science Conference.

Read More »

Report from the 2011 New Horizons Science Team Meeting

Posted by Ted Stryk on 2011/01/24 01:01 CST

The annual New Horizons Science Team Meeting was held last week at NASA's Ames Research Center.

Read More »

400 Years of the Galilean Satellites

Posted by Emily Lakdawalla on 2010/01/07 03:34 CST

It was 400 years ago today that Galileo discovered smaller planets attending the planet Jupiter.

Read More »

Aloha, Io

Posted by John Spencer on 2009/06/08 01:49 CDT

Taking a look at Jupiter's moon, Io, from Hawaii.

Read More »

Frame a Pluto portrait

Posted by Emily Lakdawalla on 2008/04/07 01:27 CDT

As New Horizons continues its journey (it's now approaching the orbital distance of Saturn, though it's very far from that planet in space), the mission is taking advantage of the recent experience with the Jupiter flyby to plan out the science operations for the Pluto-Charon encounter.

Read More »

New Horizons Jupiter Encounter Timeline

Posted by Emily Lakdawalla on 2007/01/31 07:00 CST

A year after its launch on January 19, 2006, New Horizons is fast closing in on Jupiter, the first target on its near decade-long journey. On February 28 the spacecraft will approach to within 2.3 million kilometers (1.4 million miles) of Jupiter before speeding along on to its way to the edge of the solar system.

Read More »

New Horizons is targeting Jupiter!

Posted by Emily Lakdawalla on 2007/01/10 03:48 CST

New Horizons' Jupiter encounter is officially underway!

Read More »

Items 41 - 60 of 61  Previous1234Next
Facebook Twitter Email RSS AddThis

LightSail - Kickstarter

Support LightSail!

The excitement is building! LightSail is counting down to our test launch, set for May 20—and you’re invited.

I want to help!

Featured Images

51 views of Ceres, Dawn Rotation Characterization 3, May 4, 2015
Crescent Ceres, April 30, 2015
Ceres' full rotation, Dawn Rotation Characterization 3, May 4, 2015
Morrell Operations Center
More Images

Featured Video

Solar Sailing

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!