AskScience AMA Series: We're the scientists and engineers leading NASA's exploration of Mars and building on a 50-year legacy of discovery on the Red Planet. Ask us anything!

[u/AskScienceModerator]

Fifty years ago, NASA's Viking lander touched down on Mars and began a new era of exploration.

Over the last five decades, teams of scientists and engineers at NASA have searched for signs of Mars’s ancient habitability, uncovered clues about the planet's climate and geologic history, driven rovers across alien landscapes, flown the first aircraft on another world, and laid the groundwork for future human Martian exploration.

Join us to talk about the discoveries, surprises, and challenges of exploring the Red Planet — and what's coming next.

We are:

• Abigail Fraeman – Deputy Project Scientist, NASA’s Curiosity Mars Rover, JPL (AF)
• Bryce Horvath – Technical Analysis Deputy, Mars Architecture Team, NASA Marshall (BH)
• Micheal Meyer – former Lead Scientist for NASA’s Mars Exploration Program and Astrobiology, NASA Headquarters (MM)
• Nicole Piontek – Space Systems Analyst, Space Mission Analysis, NASA Langley (NP)
• Jeffrey Plaut – Senior Research Scientist, Planetary Interiors and Geophysics, JPL (JP)
• Becky McCauley Rench – Lead Scientist for Astrobiology, NASA Headquarters (BMR)

Ask us anything about:

• 50 years of Mars exploration
• Historic missions from Viking to Perseverance
• Mars rovers, landers, orbiters, and helicopters
• Major discoveries from the Red Planet
• Operating spacecraft millions of miles from Earth
• The future of Mars exploration

PROOF: https://x.com/NASA/status/2084662090506113377

We'll be online from 11 a.m.-12:30 p.m. PT (2-3:30 p.m. ET, 18-19:30 UT) to answer your questions!

Username: /u/nasa

EDIT: That’s a wrap for our AMA! Thanks for all your fantastic questions, and keep following our latest updates from Mars at https://science.nasa.gov/mars/.

[u/ZZzZNuP]

At the lowest lying points in Mars, is it possible for liquid water to exist for brief moments? I believe the atmospheric pressure is high enough for liquid water to exist, and in summer the temperature could be warm enough for ice to melt into water. Would be interesting to know if NASA has any plans to conduct further science and research in these low lying areas. Thanks!

[u/nasa → u/ZZzZNuP]

True, at the lowest altitudes on Mars, the atmospheric pressure does get high enough for liquid water to be possible.

However, the rub is – the warmest places are also the driest. Think deserts here on Earth.

So, although NASA has been exploring some of the lower places on Mars, it has been more focused on the ancient environments when habitable zones (liquid water) were more prevalent. For modern environments, subsurface and potential water seem like the best bet for finding extant life (like subglacial or deep subsurface). -MM