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
Explore

Mars

First Mars was the setting of imaginary declining civilizations; then it was a dead, cratered, Moon-like world. Thanks to a coordinated Mars exploration program that began in 1996 and continues to the present day, we now know Mars better than any world other than our own, yet we have more questions than ever.

Geologically, Mars is quiescent, but its atmosphere breathes and changes from year to year, interacting in complex ways with the water sequestered in Mars' ice caps and permafrost. Water does not, today, flow on Mars, but it evidently has in the past, and it may flow again in the future when Mars' rotation axis tilts much more steeply. Did Mars ever look like Earth, or has it always been as cold and dry as an Antarctic desert? Has there ever been the right combination of liquid water, available energy, and time to permit life to begin on Mars?

Latest Blogs from Mars

Mastcam-Z: The Future of Stereo Imaging on Mars

Posted by Bruce Betts on 2015/10/29 06:24 CDT

An introduction to the Mastcam-Z stereo imager on the Mars 2020 rover, and brief reporting and reflections on team meetings, science instruments, and the exciting future of The Planetary Society covering the entire lifetime of this instrument, from design to Mars images.

Read More »

At Mars Workshop, Science and Human Spaceflight Find Common Ground

Posted by Jason Davis on 2015/10/29 11:33 CDT | 2 comments

An update from NASA’s First Human Landing Sites/Exploration Zones on Mars Workshop at the Lunar and Planetary Institute in Houston, Texas.

Read More »

Items 27 - 28 of 500  Previous11121314151617181920Next

More Mars

Mars' Calendar

Mars' axial tilt is similar to Earth's, and its days (or sols) are similar in length, so it has similar seasons. But its elliptical orbit makes seasons more extreme in the southern hemisphere. This page lists dates for seasonal changes and turnover of Mars Years.

More »

Missions to Mars

The missions, both successful and failed, that have flown by, orbited, or landed on the Red Planet and its moons

More »

Facebook Twitter Email RSS AddThis

Advocacy

Election 2016

Space rarely makes a strong showing in national elections, despite the major state of transition NASA finds itself in today.

Help us catalog and source statements made by candidates referring to civil space issues.

Learn More

JOIN THE
PLANETARY SOCIETY

Our Curiosity Knows No Bounds!

Become a member of The Planetary Society and together we will create the future of space exploration.

Join Us

Space in Images

Pretty pictures and
awe-inspiring science.

See More

Join the New Millennium Committee

Let’s invent the future together!

Become a Member

Connect With Us

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