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
Mysterious Mars On the Cover: With each passing glance, Mars continues to surprise and delight. These dark, wild streaks are the trails of dust devils that run over hills, skim straight across dunes and ripples, and dance through fields of house-sized boulders. The Mars Orbiter Camera on Mars Global Surveyor imaged this 3-by-5 kilometer (2-by-3 mile) portion of Argyre Planitia on February 21, 2000.

Volume 20, number 4
July/August 2000

Mysterious Mars

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


4 Contamination From Mars: No Threat: Robert Zubrin expresses his views on planetary protection when it comes to protecting Mars and Earth.

6 What Might Have Been: The Mars Polar Lander and Mars Climate Orbiter Losses: Andre Bormanis provides a summary of the reports from expert panels on what went wrong and how to fix it.

10 Mars Global Surveyor: Performing Daily, 687 Days a Year: Jennifer Vaughn reminds us about this mission, still dutifully collecting data in orbit of the Red Planet.

18 Human Exploration of Space: Fact and Fantasy: Charlene Anderson gives a brief preview of a new NPR special coming out this summer.


3 Members' Dialogue SETI; tracking NEOs.

17 World Watch Private spaceflight projects.

20 Q&A Could Europa's ocean be too salty to support life?

22 Society News LEGO donates Red Rover, Red Rover Systems.

Facebook Twitter Email RSS AddThis

Planetary Defense

An asteroid or comet headed for Earth is the only large-scale natural disaster we can prevent. Working together to fund our Shoemaker NEO Grants for astronomers, we can help save the world.


Space in Images

Pretty pictures and
awe-inspiring science.

See More

Join The Planetary Society

Let’s explore the cosmos together!

Become a Member

Connect With Us

Facebook, Twitter, YouTube and more…
Continue the conversation with our online community!