RIP, Mars Lander: NASA declares the end of the Phoenix mission

Join Our Community of Science Lovers!

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American


So long, Mars Lander.

The NASA robot’s $475-million mission is over, after increasingly cold weather and diminishing sun on Mars got the better of the lander, which relied on sunlight to recharge its solar battery, scientists said yesterday. It hasn’t contacted Earth since November 2.

"We are actually ceasing operations, declaring an end to operations at this point," Barry Goldstein, Phoenix mission project manager at NASA's Jet Propulsion Laboratory in California, told reporters yesterday. "We'll constantly turn on the radio and try to hail Phoenix and see if it's alive, but at this point nobody on the team has any expectations of that happening."

The lander managed to collect and transmit data for three months longer than expected after it arrived on Mars at the end of May. During its five-plus months on the Red Planet, the robot verified the presence of ice water below the Martian surface (the Mars Odyssey orbiter first spotted water there in 2002). The lander also found elements that could support life on Mars, including salt that might supply nutrients and calcium carbonate, a marker for water.

The lander’s $7-million cameras sent back more than 25,000 pictures and recorded weather patterns on Mars, including snowfall, frost, clouds, temperature, humidity and wind. We’ve got a slide show of some of its amazing shots.

Two rovers, Spirit and Opportunity, are still functioning on Mars's surface nearly five years after their arrival, Reuters notes. And three operational satellites are orbiting the Red Planet.

But there are likely to be some tears for the lander, which beat the odds with a tricky landing. Check out this video of NASA engineers cheering its success.


On supporting science journalism

If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.


Image of Phoenix Mars Lander scooping up a sample of the Red Planet by NASA/JPL-Caltech/University of Arizona/Texas A&M University

It’s Time to Stand Up for Science

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in that two-century history.

I’ve been a Scientific American subscriber since I was 12 years old, and it helped shape the way I look at the world. SciAm always educates and delights me, and inspires a sense of awe for our vast, beautiful universe. I hope it does that for you, too.

If you subscribe to Scientific American, you help ensure that our coverage is centered on meaningful research and discovery; that we have the resources to report on the decisions that threaten labs across the U.S.; and that we support both budding and working scientists at a time when the value of science itself too often goes unrecognized.

In return, you get essential news, captivating podcasts, brilliant infographics, can't-miss newsletters, must-watch videos, challenging games, and the science world's best writing and reporting. You can even gift someone a subscription.

There has never been a more important time for us to stand up and show why science matters. I hope you’ll support us in that mission.

Thank you,

David M. Ewalt, Editor in Chief, Scientific American

Subscribe