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
The Planetary Report
A Smashing Success! On the Cover: On July 3, 2005, 67 seconds after its impactor smashed into the nucleus of comet Temple 1, Deep Impact’s flyby spacecraft took this picture. Scattered light from the collision saturated the high-resolution camera’s light detector on the flyby craft, creating the bright splash and rays seen here. It’s reflected sunlight, however, that illuminates the comet’s nucleus.
NASA / JPL-Caltech / University of Maryland

Volume 25, number 4
July/August 2005

A Smashing Success!

Download this issue as a PDF
(Planetary Society members only)


8 Approaching Xanadu: Cassini-Huygens Examines Titan: Toby Owen explains what Cassini-Huygens has taught us so far about Titan and its tantalizing atmosphere.

14 We Must Decide to Do It! The Saga of Asteroid 2004MN4: Rusty Schweickart discusses how we can deal with NEOs.


3 Members' Dialogue On Cosmos 1

4 We Make it Happen! The story of Cosmos 1 is not over.

19 World Watch The effects of ITAR on the future of the ISS and INA

15 Q&A How do central peaks in craters form? 

22 Society News 25th anniversary events and specials, and a new look for the website

Facebook Twitter Email RSS AddThis


Advocate for Space!

Fifteen years ago, Society members and passionate space advocates like you helped save the Pluto mission. Now we can do the same for missions to Europa and Mars.

Join over 27,600 people who have completed their petition and consider a donation to support advocacy efforts.

Sign Our Petition

Fly to an Asteroid!

Send your name and message on Hayabusa-2.

Send your name

Selfies to Space!

Take flight with a selfie on LightSail™ in 2016!

Send a Selfie Now

Connect With Us

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