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

Headshot of Emily Lakdawalla

Another longevity milestone for Spirit and Opportunity

Posted by Emily Lakdawalla

29-12-2008 17:03 CST

Topics: Opportunity, Spirit, mission status, NASA Mars missions before 1996, Mars Exploration Rovers

We're getting close to the fifth anniversary of the landings of Spirit and Opportunity, but was we approach that milestone, we're passing another. I've been told that as of yesterday, Spirit and Opportunity have operated on Mars for a combined length of time that is longer than the combined number of sols that the twin Viking landers operated. Today is sol 1,774 for Spirit and 1,754 for Opportunity; that's a sum of 3,528 sols. Viking 1 operated on Mars for 2,245 sols and Viking 2 for 1,281, for a combined total of 3,526. Spirit or Opportunity will have to last nearly another 500 sols -- a goodly chunk of another Mars year -- for either rover to beat the age of Viking 1, but still, we now have more sols' worth of data from the Mars Exploration Rover mission than we do from the Viking landers. I'd say that's worth celebration!

See other posts from December 2008


Or read more blog entries about: Opportunity, Spirit, mission status, NASA Mars missions before 1996, Mars Exploration Rovers


Leave a Comment:

You must be logged in to submit a comment. Log in now.
Facebook Twitter Email RSS AddThis

Blog Search


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

Featured Images

LightSail-B on the bench
Blue Origin New Shepard after first landing
New Shepard test flight and booster landing
Suni Williams and Doug Hurley in Crew Dragon
More Images

Featured Video

MISSIONS: Dawn In The Asteroid Belt With Marc Rayman

Watch Now

Space in Images

Pretty pictures and
awe-inspiring science.

See More

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!