The Ancient Snows of Mars

When she was learning to forecast the weather in Hawaii, Brown University grad student Kat Scanlon didn’t suspect it would help her uncover evidence for rain or, more likely, snow that helped shape the surface of Mars billions of years ago.  Emily Lakdawalla is happy to see Curiosity burning up the meters on the red planet. Bill Nye attended his first NASA Advisory Council (NAC) meeting.  Bruce Betts will open up the night sky and help Mat give away the NEW Planetary Radio t-shirt.

Related Links

• "Ancient Snowfall Likely Carved Martian Valleys"
• Geophysical Research Letters Abstract-Orographic precipitation in valley network headwaters: Constraints on the ancient Martian atmosphere
• BLOG: Keeping up with Curiosity--almost a year after landing
• BLOG: Curiosity is copying Cassini's tricks!
  

Trivia Contest

This week's prize is the NEW and stylish Planetary Radio T-shirt!

This week's question:
What was the first object successfully recovered from orbit?

To submit your answer:
Complete the contest entry form at http:planetary.org/radiocontest or write to us at [email protected] no later than Monday, August 12th, at 2pm Pacific Time.  Be sure to include your name, mailing address and shirt size.

Last week's question:
What did the mission insignia for Skylab 2 say on it, other than the crewmembers names?

Answer:
The answer will be revealed next week.

Question from the week before:
What two solar system bodies did Vega 1 and Vega 2 explore?

Answer:
Vegas 1 and 2 visited Venus and Halley's Comet